S-8353/8354 Series
www.ablicinc.com
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE
BUILT-IN TRANSISTOR SWITCHING REGULATOR
© ABLIC Inc., 2002-2010 Rev.3.0_02
1
The S-8353/8354 Series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an
oscillation circuit, a power MOS FET, an error amplifier, a phase compensation circuit, a PWM control circuit (S-8353 Series)
and a PWM / PFM switching control circuit (S-8354 Series).
The S-8353/8354 Series can configure the step-up switching regulator with an external coil, capacitor, and diode. In
addition to the above features, the small package and low current consumption make the S-8353/8354 Series ideal for
portable equipment applications requiring high efficiency.
The S-8353 Series realizes low ripple, high efficiency, and excellent transient characteristics due to its PWM control circuit
whose duty ratio can be varied linearly from 0% to 83% (from 0% to 78% for 250 kHz models), an excellently designed error
amplifier, and phase compensation circuits.
The S-8354 Series features a PWM / PFM switching controller that can switch the operation to a PFM controller with a duty
ratio is 15% under a light load to prevent a decline in the efficiency due to the IC operating current.
Features
• Low voltage operation: Startup at 0.9 V min. (IOUT = 1 mA) guaranteed
• Low current consumption : During operation 18.7 A (3.3 V, 50 kHz, typ.)
During shutdown: 0.5 A (max.)
• Duty ratio : Built-in PWM / PFM switching control circuit (S-8354 Series)
15 % to 83 % (30 kHz and 50 kHz models)
15 % to 78 % (250 kHz models)
• External parts : Coil, capacitor, and diode
• Output voltage : Selectable in 0.1 V steps between 1.5 V and 6.5 V (for VDD / VOUT separate types)
Selectable in 0.1 V steps between 2.0 V and 6.5 V (for other than VDD / VOUT separate types)
• Output voltage accuracy : 2.4%
• Oscillation frequency : 30 kHz, 50 kHz, and 250 kHz selectable
• Soft start function : 6 ms (50 kHz, typ.)
• Lead-free, Sn 100%, halogen-free*1
*1. Refer to “ Product Name Structure” for details.
Applications
• Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs
• Power supplies for audio equipment such as portable CD / MD players
• Constant voltage power supplies for cameras, VCRs, and communication devices
• Power supplies for microcomputers
Packages
• SOT-23-3
• SOT-23-5
• SOT-89-3
www.ablic.com
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
2
Block Diagrams
(1) A, C and H Types (Without Shutdown Function)
CONT VOUT
Oscillation circuit
PWMcontrol circuit
or PWM / PFM
swiching control
circuit
VSS
Phase
compensation
circuit
Soft start built-in
reference power
supply
IC internal
power supply
Figure 1
(2) A and H Types (With Shutdown Function)
CONT VOUT
Oscillation circuit
PWMcontrol circuit
or PWM / PFM
swiching control
circuit
VSS
OFF/ON
Soft start built-in
reference power
supply
Phase
compensation
circuit
IC internal
power supply
Figure 2
(3) D and J Types (VDD / VOUT Separate Type)
CONT VOUTVDD
Oscillation circuit
PWMcontrol circuit
or PWM / PFM
swiching control
circuit
VSS
IC internal
power supply
Soft start built-in
reference power
supply
Phase
compensation
circuit
Figure 3
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
3
Product Name Structure
The control system, product types, output voltage, and packages for the S-8353/8354 Series can be selected at the
user’s request. Please refer to the “3. Product Name” for the definition of the product name, “4. Package” regarding
the package drawings and “5. Product Name List” for the full product names.
1. Function List
(1) PWM Control Products
Table 1
Product Name
Switching
Frequency
[kHz]
Shutdown
Function
VDD / VOUT
Separate
Type
Package Application
S-8353AxxMC 50 Yes SOT-23-5 Applications requiring shutdown function
S-8353AxxMA 50 SOT-23-3 Applications not requiring shutdown function
S-8353AxxUA 50 SOT-89-3 Applications not requiring shutdown function
S-8353CxxMA 30 SOT-23-3 For pager
S-8353CxxUA 30 SOT-89-3 For pager
S-8353DxxMC 50 Yes SOT-23-5
Applications requiring variable output voltage
with an external resistor
S-8353HxxMC 250 Yes SOT-23-5
Applications requiring a shutdown function
and a thin coil
S-8353HxxMA 250 SOT-23-3
Applications not requiring a shutdown function
and requiring a thin coil
S-8353HxxUA 250 SOT-89-3
Applications not requiring a shutdown function
and requiring a thin coil
S-8353JxxMC 250 Yes SOT-23-5
Applications requiring variable output voltage
with an external resistor and a thin coil
(2) PWM / PFM Switching Control Products
Table 2
Product Name
Switching
Frequency
[kHz]
Shutdown
Function
VDD / VOUT
Separate
Type
Package Application
S-8354AxxMC 50 Yes SOT-23-5 Applications requiring shutdown function
S-8354AxxMA 50 SOT-23-3 Applications not requiring shutdown function
S-8354AxxUA 50 SOT-89-3 Applications not requiring shutdown function
S-8354CxxMA 30 SOT-23-3 For pager
S-8354DxxMC 50 Yes SOT-23-5
Applications requiring variable output voltage
with an external resistor
S-8354HxxMC 250 Yes SOT-23-5
Applications requiring a shutdown function
and a thin coil
S-8354HxxMA 250 SOT-23-3
Applications not requiring a shutdown function
and requiring a thin coil
S-8354HxxUA 250 SOT-89-3
Applications not requiring a shutdown function
and requiring a thin coil
S-8354JxxMC 250 Yes SOT-23-5
Applications requiring variable output voltage
with an external resistor and a thin coil
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
4
2. Package and Function List by Product Type
Table 3
Series Name Type Package Name
(Abbreviation)
Shutdown Function
Yes / No
VDD / VOUT Separate Type
Yes / No
S-8353 Series,
S-8354 Series
A (Normal product or with shutdown function)
A = 50 kHz
MC Yes No
MA / UA No
C (Normal product)
C = 30 kHz MA No No
D (VDD / VOUT separate type)
D = 50 kHz MC No Yes
H (Normal product or with shutdown
function)
H = 250 kHz
MC Yes
No
MA / UA No
J (VDD / VOUT separate type)
J = 250 kHz MC No Yes
3. Product Name
(1) SOT-23-3
S-835 x x xx MA - xxx xx x
Environmental code
U : Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact our sales office)
IC direction in tape specifications *1
T1 : Product of environmental code = U
T2 : Product of environmental code = G
Product code *2
Package code
MA : SOT-23-3
Output voltage
15 to 65
(e.g. When the output voltage is 1.5 V, it is expressed as 15.)
Product type
A : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5), fOSC = 50 kHz
C : Normal products, fOSC = 30 kHz
D : VDD / VOUT separate type, fOSC = 50 kHz
H : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5), fOSC = 250 kHz
J : VDD / VOUT separate type, fOSC = 250 kHz
Control system
3 : PWM control
4 : PWM / PFM switching control
*1. Refer to the tape specifications.
*2. Refer to the Table 4 to Table 8 in the “5. Product Name List”.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
5
(2) SOT-23-5, SOT-89-3
S-835 x x xx xx - xxx T2 x
Environmental code
U : Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact our sales office)
IC direction in tape specifications *1
Product code *2
Package code
MC : SOT-23-5
UA : SOT-89-3
Output voltage
15 to 65
(e.g. When the output voltage is 1.5 V, it is expressed as 15.)
Product type
A : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5), fOSC = 50 kHz
C : Normal products, fOSC = 30 kHz
D : VDD / VOUT separate type, fOSC = 50 kHz
H : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5), fOSC = 250 kHz
J : VDD / VOUT separate type, fOSC = 250 kHz
Control system
3 : PWM control
4 : PWM / PFM switching control
*1. Refer to the tape specifications.
*2. Refer to the Table 4 to Table 8 in the “5. Product Name List”.
4. Package
Package Name Drawing Code
Package Tape Reel
SOT-23-3 Environmental code = G MP003-A-P-SD MP003-A-C-SD MP003-A-R-SD
Environmental code = U MP003-C-P-SD MP003-C-C-SD MP003-Z-R-SD
SOT-23-5 MP005-A-P-SD MP005-A-C-SD MP005-A-R-SD
SOT-89-3 UP003-A-P-SD UP003-A-C-SD UP003-A-R-SD
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
6
5. Product Name List
(1) S-8353 Series
Table 4
Output
voltage
S-8353AxxMC
Series
S-8353AxxMA
Series
S-8353AxxUA
Series
S-8353CxxMA
Series
2.0 V S-8353A20MC-IQFT2x
2.5 V S-8353A25MC-IQKT2x
2.7 V S-8353A27MC-IQMT2x
2.8 V S-8353A28MC-IQNT2x
3.0 V S-8353A30MC-IQPT2x S-8353A30MA-IQPT S-8353A30UA-IQPT2x S-8353C30MA-ISPT
3.3 V S-8353A33MC-IQST2x S-8353A33MA-IQST S-8353A33UA-IQST2x
3.5 V S-8353A35MC-IQUT2x
3.6 V S-8353A36UA-IQVT2x
3.8 V S-8353A38MC-IQXT2x S-8353A38UA-IQXT2x
4.0 V S-8353A40UA-IQZT2x
4.5 V S-8353A45MC-IRET2x
4.6 V S-8353C46MA-ITFT
5.0 V S-8353A50MC-IRJT2x S-8353A50MA-IRJT S-8353A50UA-IRJT2x
5.5 V S-8353A55MC-IROT2x S-8353A55UA-IROT2x
Table 5
Output
voltage
S-8353CxxUA
Series
S-8353DxxMC
Series
S-8353HxxMC
Series
S-8353HxxMA
Series
2.0 V S-8353D20MC-IUFT2x S-8353H20MC-IWFT2x
2.6 V S-8353H26MC-IWLT2x
2.8 V S-8353H28MC-IWNT2x
3.0 V S-8353C30UA-ISPT2x S-8353D30MC-IUPT2x S-8353H30MC-IWPT2x S-8353H30MA-IWPT
3.1 V S-8353H31MC-IWQT2x
3.2 V S-8353H32MC-IWRT2x
3.3 V S-8353H33MC-IWST2x S-8353H33MA-IWST
3.5 V S-8353H35MC-IWUT2x
3.7 V S-8353H37MC-IWWT2x
3.8 V S-8353H38MC-IWXT2x
4.0 V S-8353H40MC-IWZT2x
4.5 V S-8353H45MC-IXET2x
5.0 V S-8353D50MC-IVJT2x S-8353H50MC-IXJT2x
6.0 V S-8353H60MC-IXTT2x
6.5 V S-8353H65MC-IXYT2x
Remark 1. Please contact the ABLIC Inc. marketing department for products with an output voltage other than those specified
above.
2. x: G or U
3. : 2G or 1U
4. Please select products of environmental code = U for Sn 100%, halogen-free products.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
7
Table 6
Output
voltage
S-8353HxxUA
Series
S-8353JxxMC
Series
1.8 V S-8353J18MC-IYDT2x
2.0 V S-8353J20MC-IYFT2x
2.1 V S-8353J21MC-IYGT2x
2.5 V S-8353J25MC-IYKT2x
3.0 V S-8353J30MC-IYPT2x
3.3 V S-8353H33UA-IWST2x S-8353J33MC-IYST2x
3.6 V S-8353H36UA-IWVT2x
5.0 V S-8353H50UA-IXJT2x S-8353J50MC-IZJT2x
(2) S-8354 Series
Table 7
Output
voltage
S-8354AxxMC
Series
S-8354AxxMA
Series
S-8354AxxUA
Series
S-8354CxxMA
Series
2.0 V S-8354A20MA-JQFT
2.7 V S-8354A27MC-JQMT2x S-8354A27MA-JQMT
2.8 V S-8354A28MA-JQNT S-8354A28UA-JQNT2x
3.0 V S-8354A30MC-JQPT2x S-8354A30MA-JQPT S-8354A30UA-JQPT2x S-8354C30MA-JSPT
3.3 V S-8354A33MC-JQST2x S-8354A33MA-JQST S-8354A33UA-JQST2x
3.5 V S-8354A35UA-JQUT2x
3.8 V S-8354A38MC-JQXT2x
4.0 V S-8354A40MC-JQZT2x S-8354A40UA-JQZT2x
5.0 V S-8354A50MC-JRJT2x S-8354A50MA-JRJT S-8354A50UA-JRJT2x
Table 8
Output
voltage
S-8354DxxMC
Series
S-8354HxxMC
Series
S-8354HxxUA
Series
S-8354JxxMC
Series
1.5 V S-8354J15MC-JYAT2x
2.0 V S-8354D20MC-JUFT2x S-8354J20MC-JYFT2x
2.5 V S-8354H25MC-JWKT2x
2.7V S-8354H27MC-JWMT2x S-8354H27UA-JWMT2x
3.0 V S-8354D30MC-JUPT2x S-8354H30MC-JWPT2x S-8354J30MC-JYPT2x
3.1 V S-8354H31MC-JWQT2x
3.3 V S-8354D33MC-JUST2x S-8354H33MC-JWST2x S-8354J33MC-JYST2x
3.5 V S-8354H35MC-JWUT2x
4.0 V S-8354H40MC-JWZT2x
4.2 V S-8354H42MC-JXBT2x
4.5 V S-8354H45MC-JXET2x
4.7 V S-8354H47MC-JXGT2x
5.0 V S-8354H50MC-JXJT2x S-8354J50MC-JZJT2x
Remark 1. Please contact the ABLIC Inc. marketing department for products with an output voltage other than those specified
above.
2. x: G or U
3. : 2G or 1U
4. Please select products of environmental code = U for Sn 100%, halogen-free products.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
8
Pin Configurations
1
2 3
SOT-23-3
Top view
Figure 4
Table 9
A, C and H Types
(Without shutdown function, VDD / VOUT non-separate type)
Pin No. Symbol Description
1 VOUT Output voltage pin and IC power supply pin
2 VSS GND pin
3 CONT External inductor connection pin
SOT-23-5
Top view
5 4
3 2 1
Table 10
A and H Types
(With shutdown function, VDD / VOUT non-separate type)
Pin No. Symbol Description
1 OFF/ON
Shutdown pin
“H”: Normal operation (Step-up operating)
“L”: Step-up stopped (Entire circuit stopped)
2 VOUT Output voltage pin and IC power supply pin
3
NC*1 No connection
4 VSS GND pin
5 CONT External inductor connection pin
Figure 5 *1. The NC pin indicates electrically open.
Table 11
D and J Types
(Without shutdown function, VDD / VOUT separate type)
Pin No. Symbol Description
1 VOUT Output voltage pin
2 VDD IC power supply pin
3
NC*1 No connection
4 VSS GND pin
5 CONT External inductor connection pin
*1. The NC pin indicates electrically open.
SOT-89-3
Top view
3
2 1
Figure 6
Table 12
A and H Types
(Without shutdown function, VDD / VOUT non-separate type)
Pin No. Symbol Description
1 VSS GND pin
2 VOUT Output voltage pin and IC power supply pin
3 CONT External inductor connection pin
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
9
Absolute Maximum Ratings
Table 13
(Ta = 25C unless otherwise specified)
Item Symbol Absolute maximum rating Unit
VOUT pin voltage VOUT V
SS 0.3 to VSS 12 V
OFF/ON pin voltage*1 OFF/ON
V VSS 0.3 to VSS 12 V
VDD pin voltage*2 VDD V
SS 0.3 to VSS 12 V
CONT pin voltage VCONT V
SS 0.3 to VSS 12 V
CONT pin current ICONT 300 mA
Power dissipation
SOT-23-3
PD
150 (When not mounted on board) mW
430*3 mW
SOT-23-5 250 (When not mounted on board) mW
600*3 mW
SOT-89-3 500 (When not mounted on board) mW
1000*3 mW
Operating ambient temperature To
pr
40 to 85 C
Storage temperature Tst
g
40 to 125 C
*1. With shutdown function
*2. For VDD / VOUT separate type
*3. When mounted on board
[Mounted board]
(1) Board size : 114.3 mm 76.2 mm t1.6 mm
(2) Board name : JEDEC STANDARD51-7
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
(1) When mounted on board (2) When not mounted on board
0 50 100
150
800
400
0
Power dissipation (P
D
) [mW]
Ambient temperature (Ta) [C]
1000
600
200
1200
SOT-23-3
SOT-23-5
SOT-89-3
0 50 100
150
400
200
0
Power dissipation (P
D
) [mW]
Ambient temperature (Ta) [C]
500
300
100
600
SOT-23-3
SOT-23-5
SOT-89-3
Figure 7 Power Dissipation of Packages
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
10
Electrical Characteristics
(1) 50 kHz Product (A and D Types)
Table 14
(Ta = 25C unless otherwise specified)
Item Symbol Condition Min. Typ. Max. Unit
Measurement
circuit
Output voltage V
OUT
V
OUT(S)
0.976
V
OUT(S)
V
OUT(S)
1.024 V 2
Input voltage V
IN
10 V 2
Operation start voltage V
ST1
I
OUT
= 1 mA
0.9 V 2
Oscillation start voltage V
ST
2
No external parts, Voltage applied to V
OUT
0.8 V 1
Operation holding voltage V
HLD
I
OUT
= 1 mA, Judged by decreasing V
IN
voltage gradually 0.7
V 2
Current consumption 1 I
SS1
V
OUT
= V
OUT(S)
0.95
S-835xx15 to 19
10.8 18.0
A 1
S-835xx20 to 29
13.3 22.2
A 1
S-835xx30 to 39
18.7 31.1
A 1
S-835xx40 to 49
24.7 41.1
A 1
S-835xx50 to 59
31.0 51.6
A 1
S-835xx60 to 65
37.8 63.0
A 1
Current consumption 2 I
SS2
V
OUT
= V
OUT(S)
0.5 V
S-835xx15 to 19
4.8 9.5
A 1
S-835xx20 to 29
5.0 9.9
A 1
S-835xx30 to 39
5.1 10.2
A 1
S-835xx40 to 49
5.3 10.6
A 1
S-835xx50 to 59
5.5 10.9
A 1
S-835xx60 to 65
5.7 11.3
A 1
Current consumption during
shutdown
(With shutdown function)
I
SSS
OFF/ON
V
= 0 V
0.5
A 1
Switching current I
SW
V
CONT
= 0.4 V
S-835xx15 to 19 80 128
mA 1
S-835xx20 to 24 103 165
mA 1
S-835xx25 to 29 125 200
mA 1
S-835xx30 to 39 144 231
mA 1
S-835xx40 to 49 176 282
mA 1
S-835xx50 to 59 200 320
mA 1
S-835xx60 to 65 215 344
mA 1
Switching transistor leakage
current I
SWQ
V
CONT
= V
OUT
= 10 V
0.5
A 1
Line regulation
V
OUT1
V
IN
= V
OUT
(
S
)
0.4 to
0.6
30 60 mV 2
Load regulation
V
OUT
2
I
OUT
= 10
A to V
OUT
(
S
)
/ 250
1.25
30 60 mV 2
Output voltage temperature
coefficient
OUT
OUT
VTa∆
V∆
Ta =
40
C to
85
C
50
ppm /
C 2
Oscillation frequency f
OS
C
V
OUT
= V
OUT
(
S
)
0.95 42.5 50 57.5 kHz 1
Maximum duty ratio MaxDuty V
OUT
= V
OUT
(
S
)
0.95 75 83 90 % 1
PWM / PFM switching duty
ratio (For S-8354 Series) PFMDuty V
IN
= V
OUT(S)
0.1 V, No-load 10 15 24 % 1
OFF/ON
pin input voltage
(With shutdown function)
V
SH
Measured oscillation at CONT pin 0.75
V 1
V
SL1
Judged oscillation stop at
CONT pin
At V
OUT
1.5 V
0.3 V 1
V
SL
2
At V
OUT
1.5 V
0.2 V 1
OFF/ON
pin input current
(With shutdown function)
I
SH
OFF/ON
V
= V
OUT(S)
0.95
0.1
0.1
A 1
I
SL
OFF/ON
V
= 0 V
0.1
0.1
A 1
Soft start time t
S
S
3.0 6.0 12.0 ms 2
Efficiency EFFI
85
% 2
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
11
External parts
Coil: CDRH6D28-101 of Sumida Corporation
Diode: MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.
Capacitor: F93 (16 V, 22 F tantalum type) of Nichicon Corporation
VIN = VOUT(S) 0.6 applied, IOUT = VOUT(S) / 250
With shutdown function : OFF/ON pin is connected to VOUT
For VDD / VOUT separate type : VDD pin is connected to VOUT pin
Remark 1. V
OUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output
voltage.
2. VDD / VOUT separate type
A step-up operation is performed from VDD = 0.8 V. However, 1.8 VVDD10 V is recommended stabilizing
the output voltage and oscillation frequency. (VDD1.8 V must be applied for products with a set value of less
than 1.9 V.)
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
12
(2) 30 kHz Product (C Type)
Table 15
(Ta = 25C unless otherwise specified)
Item Symbol Condition Min. Typ. Max. Unit
Measurement
circuit
Output voltage V
OUT
V
OUT(S)
0.976
V
OUT(S)
V
OUT(S)
1.024 V 2
Input voltage V
IN
10 V 2
Operation start voltage V
ST1
I
OUT
= 1 mA
0.9 V 2
Oscillation start voltage V
ST
2
No external parts, Voltage applied to V
OUT
0.8 V 1
Operation holding voltage V
HLD
I
OUT
= 1 mA, Judged by decreasing V
IN
voltage gradually 0.7
V 2
Current consumption 1 I
SS1
V
OUT
= V
OUT(S)
0.95
S-835xx20 to 29
9.8 16.4
A 1
S-835xx30 to 39
13.1 21.9
A 1
S-835xx40 to 49
16.8 28.0
A 1
S-835xx50 to 59
20.7 34.5
A 1
S-835xx60 to 65
24.8 41.4
A 1
Current consumption 2 I
SS2
V
OUT
= V
OUT(S)
0.5 V
S-835xx20 to 29
435 9.0
A 1
S-835xx30 to 39
4.7 9.4
A 1
S-835xx40 to 49
4.9 9.7
A 1
S-835xx50 to 59
5.1 10.1
A 1
S-835xx60 to 65
5.2 10.4
A 1
Switching current I
SW
V
CONT
= 0.4 V
S-835xx20 to 24 52 83
mA 1
S-835xx25 to 29 62 100
mA 1
S-835xx30 to 39 72 115
mA 1
S-835xx40 to 49 88 141
mA 1
S-835xx50 to 59 100 160
mA 1
S-835xx60 to 65 108 172
mA 1
Switching transistor leakage
current I
SWQ
V
CONT
= V
OUT
= 10 V
0.5
A 1
Line regulation
V
OUT1
V
IN
= V
OUT
(
S
)
0.4 to
0.6
30 60 mV 2
Load regulation
V
OUT
2
I
OUT
= 10
A to V
OUT
(
S
)
/ 250
1.25
30 60 mV 2
Output voltage temperature
coefficient
OUT
OUT
VTa∆
V∆
Ta =
40
C to
85
C
50
ppm /
C 2
Oscillation frequency f
OS
C
V
OUT
= V
OUT
(
S
)
0.95 25 30 35 kHz 1
Maximum duty ratio MaxDuty V
OUT
= V
OUT
(
S
)
0.95 75 83 90 % 1
PWM / PFM switching duty
ratio (For S-8354 Series) PFMDuty V
IN
= V
OUT(S)
0.1 V, No-load 10 15 24 % 1
Soft start time t
S
S
3.0 6.0 12.0 ms 2
Efficiency EFFI
84
% 2
External parts
Coil: CDRH6D28-101 of Sumida Corporation
Diode: MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.
Capacitor: F93 (16 V, 22 F tantalum type) of Nichicon Corporation
VIN = VOUT(S) 0.6 applied, IOUT = VOUT(S) / 250
Remark VOUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output voltage.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
13
(3) 250 kHz Product (H and J Types)
Table 16
(Ta = 25C unless otherwise specified)
Item Symbol Condition Min. Typ. Max. Unit
Measurement
circuit
Output voltage V
OUT
V
OUT(S)
0.976
V
OUT(S)
V
OUT(S)
1.024 V 2
Input voltage V
IN
10 V 2
Operation start voltage V
ST1
I
OUT
= 1 mA
0.9 V 2
Oscillation start voltage V
ST
2
No external parts, Voltage applied to V
OUT
0.8 V 1
Operation holding voltage V
HLD
I
OUT
= 1 mA, Judged by decreasing V
IN
voltage gradually 0.7
V 2
Current consumption 1 I
SS1
V
OUT
= V
OUT(S)
0.95
S-835xx15 to 19
36.5 60.8
A 1
S-835xx20 to 29
48.3 80.5
A 1
S-835xx30 to 39
74.3 123.8
A 1
S-835xx40 to 49
103.1 171.9
A 1
S-835xx50 to 59
134.1 223.5
A 1
S-835xx60 to 65
167.0 278.4
A 1
Current consumption 2 I
SS2
V
OUT
= V
OUT(S)
0.5 V
S-835xx15 to 19
9.1 18.2
A 1
S-835xx20 to 29
9.3 18.6
A 1
S-835xx30 to 39
9.5 18.9
A 1
S-835xx40 to 49
9.7 19.3
A 1
S-835xx50 to 59
9.8 19.6
A 1
S-835xx60 to 65
10.0 19.9
A 1
Current consumption during
shutdown
(With shutdown function)
I
SSS
OFF/ON
V
= 0 V
0.5
A 1
Switching current I
SW
V
CONT
= 0.4 V
S-835xx15 to 19 80 128
mA 1
S-835xx20 to 24 103 165
mA 1
S-835xx25 to 29 125 200
mA 1
S-835xx30 to 39 144 231
mA 1
S-835xx40 to 49 176 282
mA 1
S-835xx50 to 59 200 320
mA 1
S-835xx60 to 65 215 344
mA 1
Switching transistor leakage
current I
SWQ
V
CONT
= V
OUT
= 10 V
0.5
A 1
Line regulation
V
OUT1
V
IN
= V
OUT
(
S
)
0.4 to
0.6
30 60 mV 2
Load regulation
V
OUT
2
I
OUT
= 10
A to V
OUT
(
S
)
/ 250
1.25
30 60 mV 2
Output voltage temperature
coefficient
OUT
OUT
VTa
V
Ta =
40
C to
85
C
50
ppm /
C 2
Oscillation frequency f
OS
C
V
OUT
= V
OUT
(
S
)
0.95 212.5 250 287.5 kHz 1
Maximum duty ratio MaxDuty V
OUT
= V
OUT
(
S
)
0.95 70 78 85 % 1
PWM / PFM switching duty
ratio (For S-8354 Series) PFMDuty V
IN
= V
OUT(S)
0.1 V, No-load 10 15 24 % 1
OFF/ON
pin input voltage
(With shutdown function)
V
SH
Measured oscillation at CONT pin 0.75
V 1
V
SL1
Judged oscillation stop at
CONT pin
At V
OUT
1.5 V
0.3 V 1
V
SL
2
At V
OUT
1.5 V
0.2 V 1
OFF/ON
pin input current
(With shutdown function)
I
SH
OFF/ON
V
= V
OUT(S)
0.95
0.1
0.1
A 1
I
SL
OFF/ON
V
= 0 V
0.1
0.1
A 1
Soft start time t
S
S
1.8 3.6 7.2 ms 2
Efficiency EFFI
85
% 2
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
14
External parts
Coil: CDRH6D28-220 of Sumida Corporation
Diode: MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.
Capacitor: F93 (16 V, 22 F tantalum type) of Nichicon Corporation
VIN = VOUT(S) 0.6 applied, IOUT = VOUT(S) / 250
With shutdown function : OFF/ON pin is connected to VOUT
For VDD / VOUT separate type : VDD pin is connected to VOUT pin
Remark 1. V
OUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output
voltage.
2. VDD / VOUT separate type
A step-up operation is performed from VDD = 0.8 V. However, 1.8 VVDD10 V is recommended stabilizing
the output voltage and oscillation frequency. (VDD1.8 V must be applied for products with a set value of less
than 1.9 V.)
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
15
Measurement Circuits
1.
300
A
VSS
VOUT
CONT
VDD
*2
0.1 F
OFF/ON
*1
Oscilloscope
Figure 8
2.
V
VSS
CONT VOUT
VDD
*2
0.1 F
OFF/ON
*1
Figure 9
*1. With shutdown function
*2. For VDD / VOUT separate type
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
16
Operation
1. Switching Control Types
1. 1 PWM Control (S-8353 Series)
The S-8353 Series is a DC-DC converter using a pulse width modulation method (PWM) and features low current
consumption. In conventional PFM DC-DC converters, pulses are skipped when the output load current is low,
causing a fluctuation in the ripple frequency of the output voltage, resulting in an increase in the ripple voltage.
In the S-8353 Series, the switching frequency does not change, although the pulse width changes from 0% to
83% (78% for H and J type) corresponding to each load current. The ripple voltage generated from switching can
thus be removed easily using a filter because the switching frequency is constant.
1. 2 PWM / PFM Switching Control (S-8354 Series)
The S-8354 Series is a DC-DC converter that automatically switches between a pulse width modulation method
(PWM) and a pulse frequency modulation method (PFM), depending on the load current, and features low current
consumption.
The S-8354 Series operates under PWM control with the pulse width duty changing from 15% to 83% (78% for H
and J type) in a high output load current area. On the other hand, the S-8354 Series operates under PFM control
with the pulse width duty fixed at 15% in a low output load current area, and pulses are skipped according to the
load current. The oscillation circuit thus oscillates intermittently so that the resultant lower self current
consumption can prevent a reduction in the efficiency at a low load current. The switching point from PWM
control to PFM control depends on the external devices (coil, diode, etc.), input voltage, and output voltage. This
series are an especially efficient DC-DC converter at an output current around 100 A.
2. Soft Start Function
For this IC, a built-in soft start circuit controls the rush current and overshoot of the output voltage when the power
is turned on or the OFF/ON pin is set to “H” level.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
17
3. OFF/ON Pin (Shutdown Pin) (SOT-23-5 Package Products of A and H Types)
OFF/ON pin stops or starts step-up operation.
Setting the OFF/ON pin to the “L” level stops operation of all the internal circuits and reduces the current
consumption significantly.
DO NOT use the OFF/ON pin in a floating state because it has the structure shown in Figure 10 and is not pulled
up or pulled down internally. DO NOT apply a voltage of between 0.3 V and 0.75 V to the OFF/ON pin because
applying such a voltage increases the current consumption. If the OFF/ON pin is not used, connect it to the VOUT
pin.
The OFF/ON pin does not have hysteresis.
Table 17
OFF/ON pin CR oscillation circuit Output voltage
“H” Operation Fixed
“L” Stop
VIN
*1
*1. Voltage obtained by subtracting the voltage drop due to the DC resistance of the inductor and the diode forward
voltage from VIN.
VSS
VOUT
OFF/ON
Figure 10 OFFON/ Pin Structure
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
18
4. Operation
The following are the basic equations [(1) through (7)] of the step-up switching regulator. (Refer to Figure 11.)
C
L
M1
D
VOUT
CONT
VIN
L
EXT
VSS
Figure 11 Step-Up Switching Regulator Circuit for Basic Equation
Voltage at CONT pin at the moment M1 is turned ON (VA) *1 :
VA = VS *2 (1)
*1. Current flowing through L (IL) is zero.
*2. Non-saturated voltage of M1.
The change in IL over time :
L
VV
L
V
dt
dI SINLL
(2)
Integration of equation (2) (IL) :
t
L
VV
ISIN
L
(3)
IL flows while M1 is ON (tON). The time of tON is determined by the oscillation frequency of OSC.
The peak current (IPK) after tON :
ON
SIN
PK t
L
VV
I
(4)
The energy stored in L is represented by 1/2 L (IPK)2.
When M1 is turned OFF (tOFF), the energy stored in L is emitted through a diode to the output capacitor.
Then, the reverse voltage (VL) is generated :
VL = (VOUT VD
*1) VIN (5)
*1. Diode forward voltage
The voltage at CONT pin rises only by VOUTVD.
The change in the current (IL) flowing through the diode into VOUT during tOFF :
L
VVV
L
V
dt
dI INDOUTLL
(6)
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
19
Integration of the equation (6) is as follows :
t
L
VVV
II INDOUT
PKL
(7)
During tON, the energy is stored in L and is not transmitted to VOUT. When receiving the output current (IOUT) from
VOUT, the energy of the capacitor (CL) is consumed. As a result, the pin voltage of CL is reduced, and goes to the
lowest level after M1 is turned ON (tON). When M1 is turned OFF, the energy stored in L is transmitted through the
diode to CL, and the voltage of CL rises rapidly. VOUT is a time function, and therefore indicates the maximum value
(ripple voltage (VPP) ) when the current flowing through into VOUT and load current (IOUT) match.
Next, the ripple voltage is determined as follows.
IOUT vs. t1 (time) from when M1 is turned OFF (after tON) to when VOUT reaches the maximum level :
1
INDOUT
PKOUT t
L
VVV
II
(8)
INDOUT
OUTPK1 VVV
L
)II(t (9)
When M1 is turned OFF (tOFF), IL = 0 (when the energy of the inductor is completely transmitted). Based on equation (7) :
PK
OFF
INDOUT I
t
VVV
L
(10)
When substituting equation (10) for equation (9) :
OFF
PK
OUT
OFF1 t
I
I
tt
(11)
Electric charge Q1 which is charged in CL during t1 :
2
1
INDOUT
1PK
1t
0
INDOUT
1t
0
PKL
1t
0
1t
2
1
L
VVV
tItdt
L
VVV
dtIdtIQ
(12)
When substituting equation (12) for equation (9) :
1
OUTPK
1OUTPKPK t
2
II
tII
2
1
I1Q
(13)
A rise in voltage (VPP) due to Q 1 :
1
OUTPK
LL
1
PP t
2
II
C
1
C
Q∆
V
(14)
When taking into consideration IOUT to be consumed during t1 and the Equivalent Series Resistance (RESR) of CL :
L
1OUT
ESR
OUTPKOUTPK
LL
1
PP C
tI
R
2
II
1t
2
II
C
1
C
Q
V
(15)
When substituting equation (11) for equation (15) :
ESR
OUTPK
L
OFF
PK
2
OUTPK
PP R
2
II
C
t
I2
)II(
V
(16)
Therefore to reduce the ripple voltage, it is important that the capacitor connected to the output pin has a large
capacity and a small RESR.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
20
External Parts Selection
The relationship between the major characteristics of the step-up circuit and the characteristic parameters of the external
parts is shown in Figure 12.
For larger output current ?
For higher efficiency ?
For smaller ripple voltage ?
At PFM control At PWM control
Smaller inductance
Larger inductance
Smaller direct current resistance of inductor
Larger output capacitance
Larger output capacitance
Figure 12 Relationship between Major Characteristics of Step-up Circuit and External Parts
1. Inductor
The inductance value (L value) has a strong influence on the maximum output current (IOUT) and efficiency ().
The peak current (IPK) increases by decreasing L value and the stability of the circuit improves and IOUT increases. If L
value is decreased, the efficiency falls causing a decline in the current drive capacity for the switching transistor, and
IOUT decreases.
The loss of IPK by the switching transistor decreases by increasing L and the efficiency becomes maximum at a
certain L value. Further increasing L value decreases the efficiency due to the loss of the direct current resistance of
the coil. IOUT also decreases.
A higher oscillation frequency allows selection of a lower L value, making the coil smaller.
The recommended inductances are a 47 H to 220 H for A, C, and D types, a 10 H to 47 H for H and J types.
Be careful of the allowable inductor current when choosing an inductor. Exceeding the allowable current of the
inductor causes magnetic saturation, much lower efficiency and destruction of the IC chip due to a large current.
Choose an inductor so that IPK does not exceed the allowable current. IPK in discontinuous mode is calculated by the
following equation:
Lf
)VVV(I 2
I
OSC
INDOUT
OUT
PK
(A) (17)
fosc = oscillation frequency, VD 0.4 V.
2. Diode
Use an external diode that meets the following requirements :
• Low forward voltage : VF 0.3 V
• High switching speed : 50 ns max.
• Reverse voltage : VOUT VF or more
• Current rate : IPK or more
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
21
3. Capacitor (CIN, CL)
A capacitor on the input side (CIN) improves the efficiency by reducing the power impedance and stabilizing the input
current. Select a CIN value according to the impedance of the power supply used.
A capacitor on the output side (CL) is used for smoothing the output voltage. For step-up types, the output voltage
flows intermittently to the load current, so step-up types need a larger capacitance than step-down types. Therefore,
select an appropriate capacitor in accordance with the ripple voltage, which increases in case of a higher output
voltage or a higher load current. The capacitor value should be 10 F or more.
Select an appropriate capacitor the equivalent series resistance (RESR) for stable output voltage. The stable voltage
range in this IC depends on the RESR. Although the inductance value (L value) is also a factor, an RESR of 30 to
500 m maximizes the characteristics. However, the best RESR value may depend on the L value, the capacitance,
the wiring, and the applications (output load). Therefore, fully evaluate the RESR under the actual operating
conditions to determine the best value.
Refer to the “1. Example of Ceramic Capacitor Application” (Figure 16) in the “ Application Circuit” for the
circuit example using a ceramic capacitor and the external resistance of the capacitor (RESR).
4. VDD / VOUT Separate Type (D and J Types)
The D and J types provides separate internal circuit power supply (VDD pin) and output voltage setting pin (VOUT
pin) in the IC, making it ideal for the following applications.
(1) When changing the output voltage with external resistance.
(2) When outputting a high voltage within the operating voltage (10 V).
Choose the products in the Table 18 according to the applications (1) or (2) above.
Table 18
Output voltage (VCC) 1.8 V VCC 5 V 5 V VCC 10 V
S-835xx18 Yes
S-835xx50 Yes
Connection to VDD pin VIN or VCC V
IN
Cautions 1. This IC starts a step-up operation at VDD = 0.8 V, but set 1.8 VDD 10 V to stabilize the output
voltage and frequency of the oscillator. (Input a voltage of 1.8 V or more at the VDD pin for all
products with a setting less than 1.9 V.) An input voltage of 1.8 V or more at the VDD pin allows
connection of the VDD pin to either the input voltage VIN pin or output VOUT pin.
2. Choose external resistors RA and RB so as to not affect the output voltage, considering that there
is impedance between the VOUT pin and VSS pin in the IC chip. The internal resistance
between the VOUT pin and VSS pin is as follows :
(1) S-835xx18 : 2.1 M to 14.8 M
(2) S-835xx20 : 1.4 M to 14.8 M
(3) S-835xx30 : 1.4 M to 14.2 M
(4) S-835xx50 : 1.4 M to 12.1 M
3. Attach a capacitor (CC) in parallel to the RA resistance when an unstable event such as
oscillation of the output voltage occurs. Calculate CC using the following equation :
kHz 20R2
1
C
A
C
F
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
22
Standard Circuits
(1) S-8353AxxMA / UA, S-8353CxxMA, S-8353HxxMA/UA, S-8354AxxMA/UA, S-8354CxxMA, S-8354HxxMA / UA
C
L
SD
V
IN
L VOUT
VSS
PWM control circuit
or PWM / PFM
switching control
circuit
Phase
compensating
circuit
C
IN
CONT
Oscillation circuit
Soft start built-in
reference power
supply
IC internal
power
supply
Remark The power supply for the IC chip is from the VOUT pin.
Figure 13
(2) S-8353AxxMC, S-8353HxxMC, S-8354AxxMC, S-8354HxxMC
PWM control circuit
or PWM / PFM
switching control
circuit
Phase
compensating
circuit
Oscillation circuit
SD
V
IN
L VOUT
VSS
C
IN
C
L
CONT
OFF/ON
Soft start built-in
reference power
supply
IC internal
power
supply
Remark The power supply for the IC chip is from the VOUT pin.
Figure 14
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
23
(3) S-8353DxxMC, S-8353JxxMC, S-8354DxxMC, S-8354JxxMC
L
SD
VIN CIN
VDD
Soft start built-in
reference power
supply
Phase
compensating
circuit
Oscillation
circuit
PWM control circuit
or PWM / PFM
switching control
circuit
CONT
VSS
RB
R
A
C
C
VOUT
CL
IC internal
power
supply
Remark The power supply for the IC chip is from the VOUT pin.
Figure 15
Caution The Above connection diagram will not guarantee successful operation. Perform through
evaluation using the actual application to set the constant.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
24
Precautions
• Mount external capacitors, diodes, and coils as close as possible to the IC. Especially, mounting the output capacitor
(capacitor between VDD pin and VSS pin for VDD / VOUT separate type) in the power supply line of the IC close to the IC
can enable stable output characteristics. If it is impossible, it is recommended to mount and wire a ceramic capacitor
of around 0.1 F close to the IC.
• Characteristics ripple voltage and spike noise occur in IC containing switching regulators. Moreover rush current flows
at the time of a power supply injection. Because these largely depend on the coil, the capacitor and impedance of
power supply used, fully check them using an actually mounted model.
• Make sure that the dissipation of the switching transistor (especially at a high temperature) does not exceed the
allowable power dissipation of the package.
• The performance of this IC varies depending on the design of the PCB patterns, peripheral circuits and external parts.
Thoroughly test all settings with your device. The recommended external part should be used wherever possible, but if
this is not possible for some reason, contact an ABLIC Inc. sales person.
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
• ABLIC Inc. claims no responsibility for any and all disputes arising out of or in connection with any infringement of the
products including this IC upon patents owned a third party.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
25
Application Circuits
1. Using Ceramic Capacitor Example
When using small RESR parts such as ceramic capacitors for the output capacitance, mount a resistor (R1)
corresponding to the RESR in series with the ceramic capacitor (CL) as shown in Figure 16.
R1 differs depending on L value, the capacitance, the wiring, and the application (output load).
The following example shows a circuit using R1 = 100 m, output voltage = 3.3 V, output load = 100 mA and its
characteristics.
CONT VOUT
VSS
VOUT
SD
CL
L
R1
VIN CIN
Figure 16 Using Ceramic Capacitor Circuit Example
Table 19
IC L Type Name SD Type Name CL
(Ceramic capacitor) R1
S-8353A33 CDRH5D28-101 MA2Z748 10 F 2 100 m
Caution The Above connection diagram and constant will not guarantee successful operation. Perform
through evaluation using the actual application to set the constant.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
26
2. Output Characteristics of The Using Ceramic Capacitor Circuit Example
The data of the step-up characteristics (a) Output current (IOUT) vs. Efficiency () characteristics, (b) Output current
(IOUT) vs. Output voltage (VOUT) characteristics, (c) Output Current (IOUT) vs. Ripple voltage (Vr) under conditions in
Table 19 is shown below.
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
V
IN
1.8 V
V
IN
2.7 V
V
IN
0.9 V
0
20
40
60
80
100
0.01 0.1 1 10 100 1000
I
OUT
[mA]
[%]
3.20
3.25
3.30
3.35
3.40
0.01 0.1 1 10 100 1000
I
OUT
[mA]
V
OUT
[V]
V
IN
1.8 V
V
IN
2.7 V
V
IN
0.9 V
(c) Output current (IOUT) vs. Ripple voltage (V
r
)
0
20
40
60
80
100
120
0.01 0.1 1 10 100 1000
V
r
[mV]
I
OUT
[mA]
140
V
IN
1.8 V
V
IN
2.7 V
V
IN
0.9 V
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
27
Characteristics (Typical Data)
1. Example of Major Temperature characteristics (Ta = 40C to 85C, VOUT = 3.3 V)
(1) Current Consumption 1 (ISS1) vs. Temperature (Ta)
fOSC = 50 kHz fOSC = 250 kHz
0
10
20
30
40
50
40 20 0 20 40 60 80 100
Ta [C]
I
SS1
[A]
0
10
20
30
40
50
I
SS1
[A]
40
20 0 20 40 60 80 100
Ta [C]
(2) Current Consumption 2 (ISS2) vs. Temperature (Ta)
fOSC = 50 kHz fOSC = 250 kHz
0
2
4
6
8
10
40 20 0 20 40 60 80
100
Ta [C]
I
SS2
[A]
0
2
4
6
8
10
40
20 0 20 40 60 80 100
Ta [C]
I
SS2
[A]
(3) Current Consumption at Shutdown (ISSS) vs. Temperature (Ta)
fOSC = 250 kHz
0
0.2
0.4
0.6
0.8
1.0
40 20 0 20 40 60 80 100
Ta [C]
I
SSS
[A]
(4) Switching Current (I
SW
) vs. Temperature (Ta) (5) Switching Transistor Leakage Current (I
SWQ
) vs. Temperature (Ta)
fOSC = 250 kHz fOSC = 250 kHz
40 20 0 20 40 60 80 100
Ta [C]
ISW [mA]
100
200
300
400
500
0
0
0.2
0.4
0.6
0.8
1.0
40
20 0 20 40 60 80 100
Ta [C]
I
SWQ
[
A]
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
28
(6) Oscillation Frequency (fOSC) vs. Temperature (Ta)
fOSC = 50 kHz fOSC = 250 kHz
30
40
50
60
70
40 20 0 20 40 60 80 100
Ta [C]
f
OSC
[kHz]
150
200
250
300
350
40
20 0 20 40 60 80 100
f
OSC
[kHz]
Ta [C]
(7) Maximum Duty Ratio (MaxDuty) vs. Temperature (Ta)
fOSC = 50 kHz fOSC = 250 kHz
40 20 0 20 40 60 80 100
Ta [C]
MaxDuty [%]
50
60
70
80
90
100
40
20 0 20 40 60 80 100
Ta [C]
MaxDuty [%]
50
60
70
80
90
100
(8) PWM / PFM Switching Duty Ratio (PFMDuty) vs.
Temperature (Ta) (S-8354 Series)
(9) OFF/ON Pin Input Voltage “H” (VSH) vs.
Temperature (Ta)
fOSC = 250 kHz fOSC = 250 kHz
5
10
15
20
25
40 20 0 20 40 60 80 100
Ta [C]
PFMDuty [%]
0
0.2
0.4
0.6
0.8
1.0
40
20 0 20 40 60 80 100
Ta [C]
V
SH
[V]
(10) OFF/ON Pin Input Voltage “L” 1 (VSL1) vs.
Temperature (Ta) (S-8354 Series)
(11) OFF/ON Pin Input Voltage “L” 2 (VSL2) vs.
Temperatuer (Ta)
fOSC = 250 kHz fOSC = 250 kHz
0
0.2
0.4
0.6
0.8
1.0
40 20 0 20 40 60 80 100
V
SL1
[V]
Ta [C]
0
0.2
0.4
0.6
0.8
1.0
40
20 0 20 40 60 80 100
Ta [C]
V
SL2
[V]
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
29
(12) Soft Start Time (tSS) vs. Temperature (Ta)
fOSC = 50 kHz fOSC = 250 kHz
0
2
4
6
8
40 20 0 20 40 60 80 100
Ta [C]
t
SS
[ms]
0
2
4
6
8
40
20 0 20 40 60 80 100
t
SS
[ms]
Ta
[
C
]
(13) Operation Start Voltage (V
ST1
) vs. Temperature (Ta) (14) Oscillation Start Voltage (V
ST2
) vs. Temperature (Ta)
fOSC = 250 kHz fOSC = 250 kHz
0
0.2
0.4
0.6
0.8
1.0
1.2
40 20 0 20 40 60 80 100
Ta [C]
V
ST1
[V]
0
0.2
0.4
0.6
0.8
1.0
1.2
40
20 0 20 40 60 80 100
Ta [C]
V
ST2
[V]
(15) Output Voltage (VOUT) vs. Temperature (Ta)
fOSC = 50 kHz fOSC = 250 kHz
3.20
3.25
3.30
3.35
3.40
40 20 0 20 40 60 80 100
Ta
[
C
]
V
OUT
[V]
3.20
3.25
3.30
3.35
3.40
40
20 0 20 40 60 80 100
Ta [C]
V
OUT
[V]
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
30
2. Examples of Major Power Supply Dependence Characteristics (Ta = 25C)
(1) Current Consumption 1 (I
SS1
) vs. Power Supply Voltage (V
DD
),
Current Consumption 2 (I
SS2
) vs. Power Supply Voltage
(V
DD
)
VOUT = 3.3 V, fOSC = 50 kHz VOUT = 3.3 V, fOSC = 250 kHz
0
10
20
30
40
50
0 2 4 6 8 10
V
DD
[V]
I
SS1
, I
SS2
[A]
0
20
40
60
80
100
0 2 4 6 8 10
VDD [V]
ISS1, ISS2 [
A]
(2) Oscillation Frequency (fOSC) vs. Power Supply Voltage (VDD)
fOSC = 50 kHz fOSC = 250 kHz
30
40
50
60
70
0 2 4 6 8 10
VDD [V]
fOSC [kHz]
100
150
200
250
300
0246 8 10
VDD [V]
fOSC [kHz]
(3) Switching Current (ISW) vs. Power Supply Voltage (VDD)
0 2 4 6 8 10
V
DD
[V]
I
SW
[mA]
100
200
300
400
500
0
(4) Output Voltage (V
OUT
) vs. Power Supply Voltage (V
DD
) (V
OUT
= 3.3 V, V
IN
= 1.98 V, I
OUT
= 13.2 mA, V
DD
Separate Type)
fOSC = 50 kHz fOSC = 250 kHz
VDD [V]
VOUT [V]
3.0
3.1
3.2
3.3
3.4
0 2 4 6 8 10
0246 8 10
V
DD
[V]
V
OUT
[V]
3.0
3.1
3.2
3.3
3.4
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
31
3. Output Waveforms (VIN = 1.98 V)
(1) S-8353A33
IOUT = 10 mA IOUT = 50 mA
t [10
s / div]
Output voltage
[0.01 V / div]
CONT voltage
[1 V / div]
t [10
s / div]
Output voltage
[0.01 V / div]
CONT voltage
[1 V / div]
IOUT = 100 mA
t [10
s / div]
Output voltage
[
0.02 V / div
]
CONT voltage
[1 V / div]
(2) S-8354H33
IOUT = 100 A IOUT = 10 mA
t [2
s / div]
Output voltage
[0.01 V / div]
CONT voltage
[1 V / div]
t [2
s / div]
Output voltage
[0.01 V
/
div]
CONT voltage
[1 V
/
div]
IOUT = 50 mA IOUT = 100 mA
t [2
s / div]
Output voltage
[0.02 V / div]
CONT voltage
[1 V / div]
Output voltage
[0.02 V
/
div]
CONT voltage
[1 V
/
div]
t [2
s / div]
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
32
4. Examples of Transient Response Characteristics (Ta 25C, 250 kHz, S-8354H33)
(1) Power-On (VIN : 0 V 2.0 V)
IOUT = 1 mA IOUT = 50 mA
0
2
t [1 ms
/
div]
V
IN
[V]
0
2
4
V
OUT
[V]
0
2
V
IN
[V]
0
2
4
V
OUT
[
V
]
t [1 ms / div]
(2) OFFON/ Pin Response ( OFF/ON
V : 0 V 2.0 V, VIN = 2 V)
IOUT = 1 mA IOUT = 50 mA
0
2
t [1 ms
/
div]
V
ON/OFF
[V]
0
2
4
V
OUT
[V]
0
2
0
2
4
V
OUT
[V]
V
ON/OFF
[V]
t [1 ms / div]
(3) Load Fluctuations (VIN = 1.98 V)
100 A 50 mA 50 mA 100 A
V
OUT
[0.05 V / div]
100
A
I
OUT
t [200 s / div]
50 mA
V
OUT
[0.05 V
/
div]
100
A
I
OUT
50 mA
t [5 ms / div]
(4) Input Voltage Fluctuations (IOUT = 50 mA)
VIN = 1.98 V 2.64 V VIN = 2.64 V 1.98 V
1.98
2.64
V
IN
[V]
t [100 s / div]
V
OUT
[0.02 V / div]
V
IN
[V]
t [100 s / div]
V
OUT
[0.04 V / div]
1.98
2.64
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
33
Reference Data
Reference data is provided to determine specific external components. Therefore, the following data shows the
characteristics of the recommended external components selected for various applications.
1. External Parts for Reference Data
Table 20 Efficiency vs. Output Current Characteristics and Output Voltage vs. Output Current Characteristics for
External Parts
Condition Product Name Oscillation
frequency Output voltage Control system Inductor Diode Output capacitor
1 S-8353H50MC 250 kHz 5.0 V PWM CDRH8D28-220
MA2Z748
F93 (16 V, 47 F)
2 S-8353H50MC 250 kHz 5.0 V PWM CDRH5D28-220 F93 (6.3 V, 22 F)
3 S-8353H50MC 250 kHz 5.0 V PWM CXLP120-220 F92 (6.3 V, 47 F)
4 S-8354A50MC 50 kHz 5.0 V PWM / PFM CDRH8D28-101 F93 (6.3 V, 22 F)
5 S-8354A50MC 50 kHz 5.0 V PWM / PFM CXLP120-470 F92 (6.3 V, 47 F)
6 S-8353A50MC 50 kHz 5.0 V PWM CDRH8D28-101 F93 (6.3 V, 22 F)
7 S-8353A50MC 50 kHz 5.0 V PWM CXLP120-470 F92 (6.3 V, 47 F)
8 S-8353A33MC 50 kHz 3.3 V PWM CDRH8D28-101 F93 (6.3 V, 22 F)
The properties of the external parts are shown below.
Table 21 Properties of External Parts
Component Product name Manufacturer Characteristics
Inductor
CDRH8D28-220
Sumida Corporation
22 H, DCR*1 = 95 m, IMAX.
*2 = 1.6 A,
Component height = 3.0 mm
CDRH8D28-101 100 H, DCR*1 = 410 m, IMAX.
*2 = 0.75 A,
Component height = 3.0 mm
CDRH5D28-220 22 H, DCR*1 = 122 m, IMAX.
*2 = 0.9 A,
Component height = 3.0 mm
CXLP120-220 Sumitomo Special Metals Co.,
Ltd.
22 H, DCR*1 = 590 m, IMAX.
*2 = 0.55 A,
Component height = 1.2 mm
CXLP120-470 47 H, DCR*1 = 950 m, IMAX.
*2 = 0.45 A,
Component height = 1.2 mm
Diode MA2Z748 Matsushita Electric Industrial
Co., Ltd. VF
*3 = 0.4 V, IF
*4 = 0.3 A
Capacitor
F93 (16 V, 47 F)
Nichicon Corporation F93 (6.3 V, 22 F)
F92 (6.3 V, 47 F)
*1. Direct current resistance
*2. Maximum allowable current
*3. Forward voltage
*4. Forward current
Caution The values shown in the characteristics column of Table 21 above are based on the materials provided by
each manufacture. However, consider the characteristics of the original materials when using the above
products.
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
34
2. Output Current (IOUT) vs. Efficiency () Characteristics, Output Current (IOUT) vs. Output Voltage
(VOUT) Characteristics
The following shows the actual (a) Output current (IOUT) vs. Efficiency () characteristics and (b) Output current (IOUT)
vs. Output voltage (VOUT) characteristics under the conditions of No. 1 to 8 in Table 20.
Condition 1 S-8353H50MC
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
20
40
60
80
100
[%]
I
OUT
[
mA
]
1 10 100 10000.1 0.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
4.7
4.8
4.9
5.0
5.1
5.2
I
OUT
[mA]
V
OUT
[V]
1 10 100 10000.10.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
Condition 2 S-8353H50MC
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
20
40
60
80
100
[%]
I
OUT
[mA]
1 10 100 10000.1 0.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
4.7
4.8
4.9
5.0
5.1
5.2
IOUT
[
mA
]
VOUT [V]
1 10 100 10000.10.01
VIN
3 V
VIN
4 V
VIN
2 V
Condition 3 S-8353H50MC
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
20
40
60
80
100
[%]
I
OUT
[
mA
]
1 10 100 10000.1 0.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
4.7
4.8
4.9
5.0
5.1
5.2
IOUT
[
mA
]
VOUT [V]
1 10 100 10000.10.01
VIN
3 V
VIN
4 V
VIN
2 V
Condition 4 S-8354A50MC
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
20
40
60
80
100
[%]
IOUT [mA]
1 10 100 10000.1 0.01
VIN 3 V
VIN 4 V
VIN 2 V
4.7
4.8
4.9
5.0
5.1
5.2
I
OUT
[
mA
]
V
OUT
[V]
1 10 100 10000.10.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_02 S-8353/8354 Series
35
Condition 5 S-8354A50MC
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
20
40
60
80
100
[%]
I
OUT
[
mA
]
1 10 100 10000.1 0.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
4.7
4.8
4.9
5.0
5.1
5.2
IOUT
[
mA
]
VOUT [V]
1 10 100 10000.10.01
VIN
3 V
VIN
4 V
VIN
2 V
Condition 6 S-8353A50MC
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
20
40
60
80
100
[%]
I
OUT
[mA]
1 10 100 10000.1 0.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
4.7
4.8
4.9
5.0
5.1
5.2
IOUT
[
mA
]
VOUT [V]
1 10 100 10000.10.01
VIN
3 V
VIN
4 V
VIN
2 V
Condition 7 S-8353A50MC
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
20
40
60
80
100
[%]
I
OUT
[mA]
1 10 100 10000.1 0.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
4.7
4.8
4.9
5.0
5.1
5.2
I
OUT
[
mA
]
V
OUT
[V]
1 10 100 10000.10.01
V
IN
3 V
V
IN
4 V
V
IN
2 V
Condition 8 S-8353A33MC
(a) Output current (IOUT) vs. Efficiency () (b) Output current (IOUT) vs. Output voltage (VOUT)
20
40
60
80
100
[%]
I
OUT
[
mA
]
1 10 100 10000.1 0.01
V
IN
1.8 V
V
IN
2.7 V
V
IN
0.9 V
3.0
3.1
3.2
3.3
3.4
3.5
I
OUT
[mA]
V
OUT
[V]
1 10 100 10000.10.01
V
IN
1.8 V
V
IN
2.7 V
V
IN
0.9 V
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series Rev.3.0_02
36
3. Output Current (IOUT) vs. Ripple Voltage (Vr) Characteristics
The following shows the actual Output current (IOUT) vs. Ripple voltage (Vr) characteristics and (b) Output current
(IOUT) vs. Output voltage (VOUT) characteristics under the conditions of No. 1 to 8 in Table 20.
Condition 1 S-8353H50MC Condition 2 S-8353H50MC
V
r
[mV]
I
OUT
[mA]
1 10 100 10000.1 0.01
20
40
60
80
100
0
V
IN
3 V
V
IN
4 V
V
IN
2 V
IOUT [mA]
Vr [mV]
1 10 100 10000.10.01
20
40
60
80
100
0
VIN
3 V
VIN
4 V
VIN
2 V
Condition 3 S-8353H50MC Condition 4 S-8354A50MC
V
r
[mV]
I
OUT
[mA]
1 10 100 10000.1 0.01
40
80
120
160
200
0
V
IN
3 V
V
IN
4 V
V
IN
2 V
I
OUT
[
mA
]
V
r
[mV]
1 10 100 10000.10.01
40
80
120
160
200
0
V
IN
3 V
V
IN
4 V
V
IN
2 V
Condition 5 S-8354A50MC Condition 6 S-8353A50MC
40
80
120
160
200
0
240
280
I
OUT
[
mA
]
1 10 100 10000.1 0.01
V
r
[mV]
V
IN
3 V
V
IN
4 V
V
IN
2 V
I
OUT
[mA]
V
r
[mV]
1 10 100 10000.10.01
40
80
120
160
200
0
V
IN
3 V
V
IN
4 V
V
IN
2 V
Condition 7 S-8353A50MC Condition 8 S-8353A33MC
40
80
120
160
200
0
240
280
I
OUT
[
mA
]
1 10 100 10000.1 0.01
V
r
[mV]
V
IN
3 V
V
IN
4 V
V
IN
2 V
I
OUT
[mA]
V
r
[mV]
1 10 100 10000.10.01
40
80
120
160
200
0
V
IN
3 V
V
IN
4 V
V
IN
2 V
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
2.9±0.2
0.95±0.1
1.9±0.2
+0.1
-0.05
0.16
0.4±0.1
1
23
No. MP003-A-P-SD-1.2
MP003-A-P-SD-1.2
SOT233-A-PKG Dimensions
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
1.4±0.1
0.2±0.05
4.0±0.1
2.0±0.05
4.0±0.1
1.5 +0.1
-0
1.1±0.1
3.25±0.1
No. MP003-A-C-SD-2.0
MP003-A-C-SD-2.0
SOT233-A-Carrier Tape
Feed direction
1
23
mm
0.75
1.0±0.1
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
(60°)
(60°)
ø13±0.2
12.5max.
9.0±0.3
QTY. 3,000
No. MP003-A-R-SD-1.1
MP003-A-R-SD-1.1
SOT233-A-Reel
Enlarged drawing in the central part
mm
No.
TITLE
ANGLE
UNIT
ABLIC Inc.
No. MP003-C-P-SD-1.1
MP003-C-P-SD-1.1
SOT233-C-PKG Dimensions
2.9±0.2
0.95±0.1
1.9±0.2
+0.1
-0.06
0.16
0.4±0.1
1
23
mm
No.
TITLE
ANGLE
UNIT
ABLIC Inc.
No. MP003-C-C-SD-2.0
MP003-C-C-SD-2.0
SOT233-C-Carrier Tape
1.4±0.2
0.23±0.1
4.0±0.1
2.0±0.1
4.0±0.1
ø1.5 +0.1
-0
ø1.0
3.2±0.2
Feed direction
1
23
+0.25
-0
mm
No.
TITLE
ANGLE
UNIT
ABLIC Inc.
QTY. 3,000
No. MP003-Z-R-SD-1.0
MP003-Z-R-SD-1.0
SOT233-C-Reel
ø13±0.2
12.5max.
9.2±0.5
Enlarged drawing in the central part
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
2.9±0.2
1.9±0.2
0.95±0.1
0.4±0.1
0.16 +0.1
-0.06
123
4
5
No. MP005-A-P-SD-1.3
MP005-A-P-SD-1.3
SOT235-A-PKG Dimensions
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
ø1.5 +0.1
-0 2.0±0.05
ø1.0 +0.2
-0 4.0±0.1 1.4±0.2
0.25±0.1
3.2±0.2
123
45
No. MP005-A-C-SD-2.1
MP005-A-C-SD-2.1
SOT235-A-Carrier Tape
Feed direction
4.0±0.1(10 pitches:40.0±0.2)
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
12.5max.
9.0±0.3
ø13±0.2
(60°) (60°)
QTY. 3,000
No. MP005-A-R-SD-1.1
MP005-A-R-SD-1.1
SOT235-A-Reel
Enlarged drawing in the central part
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
0.4±0.05
1.5±0.1
4.5±0.1
1.6±0.2
1.5±0.1 1.5±0.1
0.45±0.1
0.4±0.1
0.4±0.1
45°
312
No. UP003-A-P-SD-2.0
UP003-A-P-SD-2.0
SOT893-A-PKG Dimensions
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
2.0±0.1
0.3±0.05
8.0±0.1
ø1.5 +0.1
-0
2.0±0.05
ø1.5+0.1
-0
4.75±0.1
No. UP003-A-C-SD-2.0
UP003-A-C-SD-2.0
SOT893-A-Carrier Tape
Feed direction
4.0±0.1(10 pitches : 40.0±0.2)
mm
No.
TITLE
UNIT
ANGLE
ABLIC Inc.
13.0±0.3
16.5max.
(60°)
(60°)
QTY. 1,000
No. UP003-A-R-SD-1.1
UP003-A-R-SD-1.1
SOT893-A-Reel
Enlarged drawing in the central part
mm
Disclaimers (Handling Precautions)
1. All the information described herein
(product data,
specifications,
figures,
tables,
programs,
algorithms and application
circuit examples,
etc.)
is current as of publishing date of this document and is subject to change without notice.
2. The circuit examples and the usages described herein are for reference only, and do not guarantee the success of
any specific mass-production design.
ABLIC Inc. is not responsible for damages caused by the reasons other than the products described herein
(hereinafter "the products") or infringement of third-party intellectual property right and any other right due to the use
of the information described herein.
3. ABLIC Inc. is not responsible for damages caused by the incorrect information described herein.
4. Be careful to use the products within their specified ranges. Pay special attention to the absolute maximum ratings,
operation voltage range and electrical characteristics, etc.
ABLIC Inc. is not responsible for damages caused by failures and / or accidents, etc. that occur due to the use of the
products outside their specified ranges.
5. When using the products, confirm their applications, and the laws and regulations of the region or country where they
are used and verify suitability, safety and other factors for the intended use.
6. When exporting the products, comply with the Foreign Exchange and Foreign Trade Act and all other export-related
laws, and follow the required procedures.
7. The products must not be used or provided (exported) for the purposes of the development of weapons of mass
destruction or military use. ABLIC Inc. is not responsible for any provision (export) to those whose purpose is to
develop, manufacture, use or store nuclear, biological or chemical weapons, missiles, or other military use.
8. The products are not designed to be used as part of any device or equipment that may affect the human body, human
life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control
systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment,
aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses. Do
not apply the products to the above listed devices and equipments without prior written permission by ABLIC Inc.
Especially, the products cannot be used for life support devices, devices implanted in the human body and devices
that directly affect human life, etc.
Prior consultation with our sales office is required when considering the above uses.
ABLIC Inc. is not responsible for damages caused by unauthorized or unspecified use of our products.
9. Semiconductor products may fail or malfunction with some probability.
The user of the products should therefore take responsibility to give thorough consideration to safety design including
redundancy, fire spread prevention measures, and malfunction prevention to prevent accidents causing injury or
death, fires and social damage, etc. that may ensue from the products' failure or malfunction.
The entire system must be sufficiently evaluated and applied on customer's own responsibility.
10. The products are not designed to be radiation-proof. The necessary radiation measures should be taken in the
product design by the customer depending on the intended use.
11. The products do not affect human health under normal use. However, they contain chemical substances and heavy
metals and should therefore not be put in the mouth. The fracture surfaces of wafers and chips may be sharp. Be
careful when handling these with the bare hands to prevent injuries, etc.
12. When disposing of the products, comply with the laws and ordinances of the country or region where they are used.
13. The information described herein contains copyright information and know-how of ABLIC Inc.
The information described herein does not convey any license under any intellectual property rights or any other
rights belonging to ABLIC Inc. or a third party. Reproduction or copying of the information from this document or any
part of this document described herein for the purpose of disclosing it to a third-party without the express permission
of ABLIC Inc. is strictly prohibited.
14. For more details on the information described herein, contact our sales office.
2.2-2018.06
www.ablic.com
