S-1142A/B Series
www.ablicinc.com
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION
LOW DROPOUT CMOS VOLTAGE REGULATO
R
© ABLIC Inc., 2009-2014 Rev.4.2_02
1
The S-1142A/B Series, developed by using high-withstand voltage CMOS technology, is a positive voltage regulator with a
high-withstand voltage, low current consumption, and high-accuracy output voltage.
The S-1142A/B Series operates at a high maximum operating voltage of 50 V and a low current consumption of 4.0 A typ.
In addition to a built-in low on-resistance transistor which provides a very small dropout voltage and a large output current,
this voltage regulator also has a built-in ON / OFF circuit.
An overcurrent protection circuit prevents the load current from exceeding the capacitance of the output transistor, and a
built-in thermal shutdown circuit prevents damage caused by heat.
A high heat radiation HSOP-6 package enables high-density mounting.
Features
Output voltage: 2.0 V to 15.0 V, selectable in 0.1 V step
Input voltage: 3.0 V to 50 V
Output voltage accuracy: 1.0% (Tj =25C)
3.0% (Tj = 40C to 105C)
Current consumption: During operation: 4.0 A typ., 9.0 A max. (Ta = 40C to 85C)
During power-off: 0.1 A typ., 1.0 A max. (Ta = 40C to 85C)
Output current: Possible to output 200 mA (VIN VOUT(S) 2.0 V)*1
Input and output capacitors: A ceramic capacitor of 0.1 F or more can be used.
Built-in overcurrent protection circuit: Limits overcurrent of output transistor.
Built-in thermal shutdown circuit: Prevents damage caused by heat.
Built-in ON / OFF circuit: Ensures long battery life.
Operation temperature range: Ta = 40°C to 85°C
Lead-free (Sn 100%), halogen-free
*1. Attention should be paid to the power dissipation of the package when the output current is large.
Application
Constant-voltage power supply for home electric appliance
Package
HSOP-6
www.ablic.com
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
2
Block Diagram
Reference
voltage circuit
ON / OFF
*1
ON / OFF circuit
VIN
VSS
VOUT
Overcurrent
protection circuit
Thermal shutdown circuit
*1. Parasitic diode
Figure 1
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
3
Product Name Structure
Users can select the product type and output voltage for the S-1142A/B Series. Refer to "1. Product name"
regarding the contents of product name, "2. Package" regarding the package drawings and "3. Product name list"
for details of product names.
1. Product name
S-1142 x xx I - E6T1 U
Package abbreviation and IC packing specifications*1
E6T1: HSOP-6, Tape
Operation temperature
I: Ta =
40C to
85C
Output voltage
20 to F0
(e.g., when the output voltage is 2.0 V, it is expressed as 20.
when the output voltage is 10 V, it is expressed as A0.
when the output voltage is 11 V, it is expressed as B0.
when the output voltage is 12 V, it is expressed as C0.
when the output voltage is 15 V, it is expressed as F0.)
Product type*2
A: ON / OFF pin negative logic
B: ON / OFF pin positive logic
Environmental code
U: Lead-free (Sn 100%), halogen-free
*1. Refer to the tape drawing.
*2. Refer to "3. ON / OFF pin" in " Operation".
Remark When overshoot of the S-1142A/B Series has some influences, consider to use the S-1142C/D Series.
Refer to "6. Overshoot of output voltage" in " Operation" regarding details of overshoot.
2. Package
Table 1 Package Drawing Codes
Package Name Dimension Tape Reel Land
HSOP-6 FH006-A-P-SD FH006-A-C-SD FH006-A-R-SD FH006-A-L-SD
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
4
3. Product name list
Table 2
Output Voltage HSOP-6
2.0 V 1.0% S-1142B20I-E6T1U
2.5 V 1.0% S-1142B25I-E6T1U
2.7 V 1.0% S-1142B27I-E6T1U
2.8 V 1.0% S-1142B28I-E6T1U
2.85 V 1.0% S-1142B2JI-E6T1U
3.0 V 1.0% S-1142B30I-E6T1U
3.2 V 1.0% S-1142B32I-E6T1U
3.3 V 1.0% S-1142B33I-E6T1U
3.5 V 1.0% S-1142B35I-E6T1U
3.7 V 1.0% S-1142B37I-E6T1U
4.0 V 1.0% S-1142B40I-E6T1U
5.0 V 1.0% S-1142B50I-E6T1U
8.0 V 1.0% S-1142B80I-E6T1U
12.0 V 1.0% S-1142BC0I-E6T1U
12.5 V 1.0% S-1142BC5I-E6T1U
15.0 V 1.0% S-1142BF0I-E6T1U
Remark Please contact our sales office for products with an output voltage
other than those listed above or type A products.
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
5
Pin Configuration
1. HSOP-6
132
465
Top view
Figure 2
Table 3
Pin No. Symbol Description
1 VOUT Output voltage pin
2 VSS GND pin
3 ON / OFF ON / OFF pin
4 NC*1 No connection
5 VSS GND pin
6 VIN Input voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to the VIN pin or the VSS pin.
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
6
Absolute Maximum Ratings
Table 4
(Ta = 25C unless otherwise specified
)
Item Symbol Absolute Maximum Rating Unit
Input voltage VIN V
SS0.3 to VSS60 V
VON / OFF V
SS0.3 to VIN0.3 V
Output voltage VOUT V
SS0.3 to VIN0.3 V
Power dissipation PD 1900*1 mW
Junction temperature Tj 40 to125 C
Operation ambient temperature Topr 40 to85 C
Storage temperature Tstg 40 to125 C
*1. When mounted on board
[Mounted board]
(1) Board size: 50 mm 50 mm t1.6 mm
(2) Board material: Glass epoxy resin (two layers)
(3) Wiring ratio: 50%
(4) Test conditions: When mounted on board (wind speed: 0 m/s)
(5) Land pattern: Refer to the recommended land pattern (drawing code: FH006-A-L-SD)
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.
0 50 100 150
2400
1600
0
Power dissipation (PD) [mW]
Ambient temperature (Ta) [C]
800
2000
1200
400
Figure 3 Power Dissipation of Package (When Mounted on Board)
Table 5
Condition Power Dissipation Thermal Resistance Value (j a)
HSOP-6 (When mounted on board) 1900 mW 53°C/W
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
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Power dissipation of HSOP-6 (reference)
Package power dissipation differs depending on the mounting conditions.
The power dissipation characteristics under the following test conditions should be taken as reference values only.
[Mounted board]
(1) Board size: 50 mm 50 mm t1.6 mm
(2) Board material: Glass epoxy resin (two layers)
(3) Wiring ratio: 90%
(4) Test conditions: When mounted on board (wind speed: 0 m/s)
(5) Land pattern: Refer to the recommended land pattern (drawing code: FH006-A-L-SD)
0 50 100 150
2400
1600
0
Power dissipation (PD) [mW]
Ambient temperature (Ta) [C]
800
2000
1200
400
Figure 4 Power Dissipation of Package (When Mounted on Board)
Table 6
Condition Power Dissipation (Reference) Thermal Resistance Value (j a)
HSOP-6 (When mounted on board) 2000 mW 50°C/W
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
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Electrical Characteristics
Table 7
(Tj =
40°C to
125°C, Ta =
40°C to
85°C unless otherwise specified)
Item Symbol Condition Min. Typ. Max. Unit Test
Circuit
Output voltage*1 VOUT(E) VIN = VOUT(S)1.0 V,
IOUT = 30 mA, 40°C Tj 105°C
VOUT(S)
0.97 VOUT(S) VOUT(S)
1.03 V1
Output current*2 I
OUT V
IN VOUT(S)2.0 V 200*4 mA 3
Dropout voltage*3 Vdrop
IOUT = 100 mA
Ta =25°C
2.0 V
VOUT
(
S
)
< 2.2 V
1.0 V1
2.2 V
VOUT
(
S
)
< 2.4 V
0.8 V1
2.4 V
VOUT
(
S
)
< 2.6 V
0.6 V1
2.6 V
VOUT
(
S
)
< 3.0 V
0.45 V1
3.0 V
VOUT
(
S
)
< 3.5 V
0.35 V1
3.5 V
VOUT
(
S
)
< 4.0 V
0.3 V1
4.0 V
VOUT
(
S
)
< 5.0 V
0.27 V1
5.0 V
VOUT
(
S
)
< 7.0 V
0.23 V1
7.0 V
VOUT
(
S
)
< 9.0 V
0.2 V1
9.0 V
VOUT
(
S
)
15.0 V
0.18 V1
IOUT = 200 mA
Ta =25°C
2.0 V
VOUT
(
S
)
< 2.2 V
1.12 V1
2.2 V
VOUT
(
S
)
< 2.4 V
1.02 V1
2.4 V
VOUT
(
S
)
< 2.6 V
0.92 V1
2.6 V
VOUT
(
S
)
< 3.0 V
0.82 V1
3.0 V
VOUT
(
S
)
< 3.5 V
0.72 V1
3.5 V
VOUT
(
S
)
< 4.0 V
0.62 V1
4.0 V
VOUT
(
S
)
< 5.0 V
0.55 V1
5.0 V
VOUT
(
S
)
< 7.0 V
0.5 V1
7.0 V
VOUT
(
S
)
< 9.0 V
0.45 V1
9.0 V
VOUT
(
S
)
15.0 V
0.4 V1
Line regulation
OUTIN
1OUT
VV
V
VOUT(S)1.0 V VIN 30 V, IOUT = 30 mA 0.05 0.3 %/V 1
Load regulation VOUT2
VIN = VOUT(S)1.0 V, 2.0 V VOUT(S) < 5.1 V,
0.1 mA IOUT 40 mA 20 40 mV 1
VIN = VOUT(S)1.0 V, 5.1 V
VOUT(S) < 12.1 V,
0.1 mA IOUT 40 mA 20 60 mV 1
VIN = VOUT(S)
1.0 V, 12.1 V
VOUT(S)
15.0 V,
0.1 mA IOUT 40 mA 20 80 mV 1
Current consumption
during operation ISS1 VIN = VOUT(S)
1.0 V,
ON / OFF pin = ON, no load 4.0 9.0
A2
Current consumption
during power-off ISS2 VIN = VOUT(S)
1.0 V,
ON / OFF pin = OFF, no load 0.1 1.0
A2
Input voltage VIN
3.0 50 V
ON / OFF pin input
voltage "H" VSH VIN = VOUT(S) 1.0 V, RL = 1.0 k
,
determined by VOUT output level 1.5 V4
ON / OFF pin input
voltage "L" VSL VIN = VOUT(S)1.0 V, RL = 1.0 k
,
determined by VOUT output level 0.3 V 4
ON / OFF pin input
current "H" ISH VIN = VOUT(S)1.0 V, VON / OFF = VOUT(S)1.0 V 0.1 0.1 A4
ON / OFF pin input
current "L" ISL VIN = VOUT(S)1.0 V, VON / OFF = 0 V 0.1 0.1 A4
Ripple rejection |RR|
VIN = VOUT(S)1.0 V,
f = 100 Hz,
Vrip = 0.5 Vrms,
IOUT = 30 mA,
Ta = 25°C
2.0 V
VOUT
(
S
)
< 2.3 V
50 dB 5
2.3 V
VOUT
(
S
)
< 3.6 V
45 dB 5
3.6 V
VOUT
(
S
)
< 6.1 V
40 dB 5
6.1 V
VOUT
(
S
)
< 10.1 V
35 dB 5
10.1 V
VOUT
(
S
)
15.0 V
30 dB 5
Short-circuit current Ishort VIN = VOUT(S)1.0 V, ON / OFF pin = ON,
VOUT = 0 V, Ta = 25C 80 mA 3
Thermal shutdown
detection temperature
TSD Junction temperature 150 C
Thermal shutdown
release temperature
TSR Junction temperature 125 C
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
9
*1. V
OUT(S): Set output voltage
VOUT(E): Actual output voltage
The output voltage when fixing IOUT (= 30 mA) and inputting VOUT(S)1.0 V
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.
*3. V
drop = VIN1 (VOUT3 0.98)
VOUT3 is the output voltage when VIN = VOUT(S)2.0 V, and IOUT = 100 mA or 200 mA.
VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input
voltage.
*4. The output current can be at least this value.
Due to limitation of the package power dissipation, this value may not be satisfied. Attention should be paid to the
power dissipation of the package when the output current is large.
This specification is guaranteed by design.
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
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Test Circuits
VOUT
VIN
VSS
V
A
ON / OFF
Set to ON
Figure 5 Test Circuit 1
VOUT
VIN
VSS
ON / OFF
Set to V
IN
or GND
A
Figure 6 Test Circuit 2
Set to ON
VOUT
VIN
VSS
V
A
ON / OFF
Figure 7 Test Circuit 3
VOUT
VIN
VSS
V
ON / OFF
A RL
Figure 8 Test Circuit 4
VOUT
VIN
VSS
V
ON / OFF R
L
Set to ON
Figure 9 Test Circuit 5
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
11
Standard Circuit
C
IN*1
C
L*2
Input Output
GND
Single GND
VOUT
VIN
VSS
ON / OFF
*1. CIN is a capacitor for stabilizing the input.
*2. A ceramic capacitor of 0.1 F or more can be used as CL.
Figure 10
Caution The above connection diagram and constants will not guarantee successful operation. Perform
thorough evaluation using an actual application to set the constants.
Condition of Application
Input capacitor (CIN): 0.1 F or more
Output capacitor (CL): 0.1 F or more
Caution Generally a series regulator may cause oscillation, depending on the selection of external parts.
Confirm that no oscillation occurs in the application for which the above capacitors are used.
Selection of Input and Output Capacitors (CIN, CL)
The S-1142A/B Series requires an output capacitor between the VOUT pin and the VSS pin for phase compensation.
Operation is stabilized by a ceramic capacitor with an output capacitance of 0.1 F or more over the entire temperature
range. When using an OS capacitor, a tantalum capacitor, or an aluminum electrolytic capacitor, the capacitance must
be 0.1 F or more.
The values of output overshoot and undershoot, which are transient response characteristics, vary depending on the
value of the output capacitor.
The required value of capacitance for the input capacitor differs depending on the application.
Set the value for input capacitor (CIN) and output capacitor (CL) as follows.
CIN0.1F
CL0.1F
Caution Define the capacity values of CIN and CL by sufficient evaluation including the temperature
characteristics under the actual usage conditions.
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
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Explanation of Terms
1. Low dropout voltage regulator
This voltage regulator has the low dropout voltage due to its built-in low on-resistance transistor.
2. Output voltage (VOUT)
The accuracy of the output voltage is ensured at 3.0% under specified conditions of fixed input voltage*1, fixed
output current, and fixed temperature.
*1. Differs depending on the product.
Caution If the above conditions change, the output voltage value may vary and exceed the accuracy range
of the output voltage. Refer to " Electrical Characteristics" and " Characteristics (Typical Data)"
for details.
3. Line regulation
VOUT1
VIN VOUT
Indicates the dependency of the output voltage against the input voltage. That is, the value shows how much the
output voltage changes due to a change in the input voltage after fixing output current constant.
4. Load regulation (VOUT2)
Indicates the dependency of the output voltage against the output current. That is, the value shows how much the
output voltage changes due to a change in the output current after fixing input voltage constant.
5. Dropout voltage (Vdrop)
Indicates the difference between input voltage (VIN1) and the output voltage when; decreasing input voltage (VIN)
gradually until the output voltage has dropped out to the value of 98% of output voltage (VOUT3), which is at VIN =
VOUT(S) 2.0 V.
Vdrop = VIN1 (VOUT3 0.98)
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
13
Operation
1. Basic operation
Figure 11 shows the block diagram of the S-1142A/B Series.
The error amplifier compares the reference voltage (Vref) with feedback voltage (Vfb), which is the output voltage
resistance-divided by feedback resistors (Rs and Rf). It supplies the gate voltage necessary to maintain the constant
output voltage which is not influenced by the input voltage and temperature change, to the output transistor.
VOUT
*1
VSS
VIN
R
s
R
f
Error
amplifier
Current
supply
V
ref
V
fb
Reference voltage
circuit
*1. Parasitic diode
Figure 11
2. Output transistor
In the S-1142A/B Series, a low on-resistance P-channel MOS FET is used as the output transistor.
Be sure that VOUT does not exceed VIN0.3 V to prevent the voltage regulator from being damaged due to reverse
current flowing from the VOUT pin through a parasitic diode to the VIN pin, when the potential of VOUT became
higher than VIN.
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
14
3. ON / OFF pin
This pin starts and stops the regulator.
When the ON / OFF pin is set to the OFF level, the entire internal circuit stops operating, and the built-in P-channel
MOS FET output transistor between the VIN pin and the VOUT pin is turned off, reducing current consumption
significantly. The VOUT pin is set to the VSS level by the internal dividing resistor of several M between the VOUT
pin and the VSS pin.
Note that the current consumption increases when a voltage of 0.3 V to VIN 0.3 V is applied to the ON / OFF pin.
The ON / OFF pin is configured as shown in Figure 12. Since the ON / OFF pin is neither pulled down nor pulled up
internally, do not use it in the floating status. When not using the ON / OFF pin, connect it to the VSS pin in the
product A type, and connect it to the VIN pin in the B type.
Table 8
Product Type ON / OFF Pin Internal Circuit VOUT Pin Voltage Current Consumption
A "L": ON Operate Set value ISS1
A "H": OFF Stop VSS level ISS2
B "L": OFF Stop VSS level ISS2
B "H": ON Operate Set value ISS1
VSS
ON / OFF
VIN
Figure 12
4. Overcurrent protection circuit
The S-1142A/B Series includes an overcurrent protection circuit which having the characteristics shown in
"1. Output voltage vs. Output current (When load current increases) (Ta = 25C)" in " Characteristics
(Typical Data)", in order to protect the output transistor against an excessive output current and short circuiting
between the VOUT pin and the VSS pin. The current when the output pin is short-circuited (Ishort) is internally set at
approx. 80 mA typ., and the normal value is restored for the output voltage, if releasing a short circuit once.
Caution This overcurrent protection circuit does not work as for thermal protection. If this IC long
keeps short circuiting inside, pay attention to the conditions of input voltage and load
current so that, under the usage conditions including short circuit, the loss of the IC will
not exceed power dissipation of the package.
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
15
5. Thermal shutdown circuit
The S-1142A/B Series has a thermal shutdown circuit to protect the device from damage due to overheat. When
the junction temperature rises to 150C typ., the thermal shutdown circuit operates to stop regulating. When the
junction temperature drops to 125C typ., the thermal shutdown circuit is released to restart regulating.
Due to self-heating of the S-1142A/B Series, if the thermal shutdown circuit starts operating, it stops regulating so
that the output voltage drops. When regulation stops, the S-1142A/B Series does not itself generate heat and the
IC’s temperature drops. When the temperature drops, the thermal shutdown circuit is released to restart regulating,
thus this IC generates heat again. Repeating this procedure makes the waveform of the output voltage into a
pulse-like form. Stop or restart of regulation continues unless decreasing either or both of the input voltage and the
output current in order to reduce the internal power consumption, or decreasing the ambient temperature.
Table 9
Thermal Shutdown Circuit VOUT Pin Voltage
Operate: 150C typ.*1 VSS level
Release: 125C typ.*1 Set value
*1. Junction temperature
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
16
6. Overshoot of output voltage
Overshoot of output voltage occurs depending on the condition such as the rising speed of input voltage (VIN).
Overshoot voltage is the difference between the maximum value of output voltage generated by the fluctuation of
VIN and the actual output voltage (VOUT(E)) value.
6. 1 At normal operation
As shown in Figure 13, Vgs is the voltage difference between VIN and gate voltage of output driver.
The error amplifier controls Vgs in order to keep the output voltage constant depending on the fluctuation of VIN
and the output load.
Output voltage
Output load
Output
capacitance
Output driver
V
ref
V
IN
V
gs
Figure 13 Circuit Diagram
6. 2 Occurrence of overshoot
If VIN voltage rises at a fast speed, Vgs may become large when gate voltage of output driver can not follow the
speed of VIN. When Vgs becomes large, the current supplied from output driver is increased transiently. Thereby,
output voltage rises, and then overshoot occurs.
Note that overshoot voltage is greatly affected by the following use conditions or temperature, etc.
When VIN rises in the range of 2.0 V to VOUT(E).
When the rising speed of VIN is fast.
When the output capacitance is small.
When the output load is small.
Output voltage (VOUT(E)) Overshoot voltage
VOUT(E)
VIN = 2.0 V to VOUT(E)
Input voltage (VIN)
Rising time (t)
VIN = 2.0 V to VOUT(E)
Rising speed of VIN = V
t V
Figure 14 VIN and Overshoot Voltage
Caution Under the following conditions, overshoot voltage tends to become larger especially.
When VIN rises from around 98% of VOUT(E).
When the rising speed of VIN is 10 mV/s or more.
Remark When overshoot of the S-1142A/B Series has some influences, consider to use the S-1142C/D Series.
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
17
Precautions
Wiring patterns for the VIN pin, the VOUT pin and GND should be designed so that the impedance is low. When
mounting an output capacitor between the VOUT pin and the VSS pin (CL) and a capacitor for stabilizing the input
between the VIN pin and the VSS pin (CIN), the distance from the capacitors to these pins should be as short as
possible.
Note that generally the output voltage may increase when a series regulator is used at low load current (0.1 mA or
less).
Note that generally the output voltage may increase due to the leakage current from an output driver when a series
regulator is used at high temperature.
Note that the output voltage may increase due to the leakage current from an output driver even if the ON / OFF pin
is at OFF level when a series regulator is used at high temperature.
Generally a series regulator may cause oscillation, depending on the selection of external parts. The following
conditions are recommended for the S-1142A/B Series. However, be sure to perform sufficient evaluation under the
actual usage conditions for selection, including evaluation of temperature characteristics. Refer to "6. Example of
equivalent series resistance vs. Output current characteristics (Ta =25C)" in " Reference Data" for the
equivalent series resistance (RESR) of the output capacitor.
Input capacitor (CIN): 0.1 F or more
Output capacitor (CL): 0.1 F or more
The voltage regulator may oscillate when the impedance of the power supply is high and the input capacitance is
small or an input capacitor is not connected.
Sufficiently evaluate the output voltage fluctuations caused by the power supply or the load fluctuations with the
actual device.
Overshoot may occur in the output voltage momentarily if the voltage is rapidly raised at power-on or when the power
supply fluctuates. Sufficiently evaluate the output voltage at power-on with the actual device.
The application conditions for the input voltage, the output voltage, and the load current should not exceed the
package power dissipation.
Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
In determining the output current, attention should be paid to the output current value specified in Table 7 in
" Electrical Characteristics" and footnote *4 of the table.
ABLIC Inc. claims no responsibility for any disputes arising out of or in connection with any infringement by products
including this IC of patents owned by a third party.
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
18
Characteristics (Typical Data)
1. Output voltage vs. Output current (When load current increases) (Ta = 25C)
1. 1 VOUT = 2.0 V 1. 2 VOUT = 5.0 V
100 200 300 400 500 600 700 8000
2.5
1.0
0.5
1.5
2.0
0
13.5 V
4.0 V
V
OUT
[V]
I
OUT
[mA]
V
IN
= 3.0 V
100 200 300 400 500 600 700 8000
6
3
2
1
4
5
0
VOUT [V]
IOUT [mA]
13.5 V
6.0 V
7.0 V
VIN = 5.5 V
1. 3 VOUT = 12.0 V
100 200 300 400 500 600 700 8000
14
12
10
8
6
4
2
0
VOUT [V]
IOUT [mA]
13.5 V
13.0 V
VIN = 12.5 V
Remark In determining the output current, attention should
be paid to the following.
1. The minimum output current value and
footnote *4 of Table 7 in the " Electrical
Characteristics"
2. Power dissipation of the package
2. Output voltage vs. Input voltage (Ta = 25C)
2. 1 VOUT = 2.0 V 2. 2 VOUT = 5.0 V
5 10152025300
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
V
OUT
[V]
V
IN
[V]
50 mA
I
OUT
= 1 mA
30 mA
5 10152025300
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
V
OUT
[V]
V
IN
[V]
50 mA
I
OUT
= 1 mA
30 mA
2. 3 VOUT = 12.0 V
15 20 25 3010
12.4
12.2
12.0
11.8
11.6
11.4
11.2
11.0
V
OUT
[V]
V
IN
[V]
50 mA
I
OUT
= 1 mA
30 mA
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
19
3. Dropout voltage vs. Output current
3. 1 VOUT = 2.0 V 3. 2 VOUT = 5.0 V
50 100 150 200 2500
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
V
drop
[V]
I
OUT
[mA]
+25C
40C
Tj = +125C
50 100 150 200 2500
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
I
OUT
[mA]
25C
40C
Tj = 125C
V
drop
[V]
3. 3 VOUT = 12.0 V
50 100 150 200 2500
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
I
OUT
[mA]
25C
40C
Tj = 125C
V
drop
[V]
4. Dropout voltage vs. Temperature
4. 1 VOUT = 2.0 V 4. 2 VOUT = 5.0 V
0.9
0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
40 25 0 25 50 75 100 125
Tj [C]
I
OUT
= 100 mA
10 mA
V
drop
[V]
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
40 25 0 25 50 75 100 125
Tj [C]
I
OUT
= 100 mA
10 mA
V
drop
[V]
4. 3 VOUT = 12.0 V
40 25 0 25 50 75 100 125
0.30
0
Tj [C]
0.25
0.20
0.15
0.10
0.05
I
OUT
= 100 mA
10 mA
V
drop
[V]
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
20
5. Dropout voltage vs. Set output voltage (Tj = 25C)
24681012140
0.6
0.4
0.2
0.8
1.0
1.2
0
V
drop
[V]
V
OUT(S)
[V]
100 mA
30 mA
10 mA
1 mA
I
OUT
= 200 mA
6. Output voltage vs. Temperature
6. 1 VOUT = 2.0 V
VIN = 3.0 V
6. 2 VOUT = 5.0 V
VIN = 6.0 V
40 25 0 25 50 75 100 125
2.04
2.02
2.00
1.98
1.96
Tj [C]
V
OUT
[V]
5.2
5.1
5.0
4.9
4.8
40 25 0 25 50 75 100 125
Tj [C]
V
OUT
[V]
6. 3 VOUT = 12.0 V
VIN = 13.0 V
12.4
12.2
12.0
11.8
11.6
40 25 0 25 50 75 100 125
Tj [C]
V
OUT
[V]
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
21
7. Current consumption during operation vs. Input voltage (When ON / OFF pin is ON, no load)
7. 1 VOUT = 2.0 V 7. 2 VOUT = 5.0 V
5 10152025300
16
14
12
10
8
6
4
2
0
I
SS1
[A]
V
IN
[V]
25C
40C
Tj = 125C
I
SS1
[A]
V
IN
[V]
5 10152025300
16
14
12
10
8
6
4
2
0
ISS1 [A]
VIN [V]
25C
40C
Tj = 125C
7. 3 VOUT = 12.0 V
5 10152025300
16
14
12
10
8
6
4
2
0
I
SS1
[A]
V
IN
[V]
25C
40C
Tj = 125C
8. Current consumption during operation vs. Temperature
8. 1 VOUT = 2.0 V
VIN = 3.0 V
8. 2 VOUT = 5.0 V
VIN = 6.0 V
6.0
2.5
5.5
5.0
4.5
4.0
3.5
3.0
40 25 0 25 50 75 100 125
Tj [C]
I
SS1
[A]
6.0
2.5
5.5
5.0
4.5
4.0
3.5
3.0
40 25 0 25 50 75 100 125
Tj [C]
I
SS1
[A]
8. 3 VOUT = 12.0 V
VIN = 13.0 V
6.0
2.5
5.5
5.0
4.5
4.0
3.5
3.0
40 25 0 25 50 75 100 125
Tj [C]
I
SS1
[A]
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
22
9. Current consumption during operation vs. Output current (Ta = 25C)
9. 1 VOUT = 2.0 V 9. 2 VOUT = 5.0 V
25 50 75 100 125 1500
160
140
120
100
80
60
40
20
0
I
SS1
[A]
I
OUT
[mA]
3.0 V
V
IN
= 13.5 V
25 50 75 100 125 1500
160
140
120
100
80
60
40
20
0
I
SS1
[A]
I
OUT
[mA]
6.0 V
V
IN
= 13.5 V
9. 3 VOUT = 12.0 V
25 50 75 100 125 1500
160
140
120
100
80
60
40
20
0
I
SS1
[A]
I
OUT
[mA]
13.0 V
V
IN
= 20.0 V
10. Output current vs. Input voltage*1
10. 1 VOUT = 3.3 V 10. 2 VOUT = 5.0 V
10 20 30 40 500
250
0
I
OUT
[mA]
V
IN
[V]
200
150
100
50
+25C
Ta = +85C
10 20 30 40 500
250
0
IOUT [mA]
VIN [V]
200
150
100
50
+25C
Ta = +85C
*1. When mounted on board
[Mounted board]
(1) Board size: 50 mm50 mmt1.6 mm
(2) Board material: Glass epoxy resin (two layers)
(3) Wiring ratio: Surface approx. 75%, reverse side approx. 90%
(4) Through hole: Diameter 0.5 mm24
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
23
11. Ripple rejection (Ta = 25C)
11. 1 VOUT = 2.0 V
VIN = 13.5 V, CL = 0.1 F
11. 2 VOUT = 5.0 V
VIN = 13.5 V, CL = 0.1 F
100 1k 10k
Ripple Rejection [dB]
Frequency [Hz]
10 1M
0
80
100k
70
60
50
40
30
20
10
I
OUT
= 1 mA
30 mA
100 mA
100 1k 10k
Ripple Rejection [dB]
Frequency [Hz]
10 1M
0
70
100k
60
50
40
30
20
10
I
OUT
= 1 mA
30 mA
100 mA
11. 3 VOUT = 12.0 V
VIN = 13.5 V, CL = 0.1 F
100 1k 10k
Ripple Rejection [dB]
Frequency [Hz]
10 1M
0
60
100k
50
40
30
20
10
I
OUT
= 1 mA
30 mA
100 mA
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
24
Reference Data
1. Characteristics of input transient response (Ta = 25C)
1. 1 VOUT = 2.0 V
I
OUT
= 30 mA, C
IN
= 0.1
F, V
IN
= 11.5 V
13.5 V, t
r
= t
f
= 5.0
s
1. 2 VOUT = 5.0 V
I
OUT
= 30 mA, C
IN
= 0.1
F, V
IN
= 11.5 V
13.5 V, t
r
= t
f
= 5.0
s
0 200
V
OUT
[V]
t [μs]
200 600
400 800 1000 1200
V
IN
[V]
2.5
2.4
2.3
2.2
2.1
2.0
1.9
14
13
12
11
10
9
8
C
L
= 10 μF
22 μF
VIN
VOUT
0 200
V
OUT
[V]
t [μs]
200 600
400 800 1000 1200
V
IN
[V]
6.0
5.8
5.6
5.4
5.2
5.0
4.8
14
13
12
11
10
9
8
C
L
= 10 μF
22 μF
VIN
VOUT
1. 3 VOUT = 12.0 V
I
OUT
= 30 mA, C
IN
= 0.1
F, V
IN
= 13.5 V
15.5 V, t
r
= t
f
= 5.0
s
0 200
V
OUT
[V]
t [μs]
200 600
400 800 1000 1200
V
IN
[V]
13.2
11.8
16
9
15
14
13
12
11
10
13.0
12.8
12.6
12.4
12.2
12.0
C
L
= 10 μF
22 μF
V
IN
V
OUT
2. Characteristics of load transient response (Ta = 25C)
2. 1 VOUT = 2.0 V
VIN = 13.5 V, CIN = 0.1 F, IOUT = 50 mA 100 mA
2. 2 VOUT = 5.0 V
VIN = 13.5 V, CIN = 0.1 F, IOUT = 50 mA 100 mA
0 200
V
OUT
[V]
t [μs]
200 600
400 800 1000 1200
I
OUT
[mA]
2.4 150
100
50
0
50
100
150
2.3
2.2
2.1
2.0
1.9
1.8
C
L
= 10 μF
22 μF
V
OUT
I
OUT
0 200
V
OUT
[V]
t [μs]
200 600
400 800 1000 1200
I
OUT
[mA]
5.8 150
100
50
0
50
100
150
5.6
5.4
5.2
5.0
4.8
4.6
C
L
= 10 μF
22 μF
V
OUT
I
OUT
2. 3 VOUT = 12.0 V
VIN = 13.5 V, CIN = 0.1 F, IOUT = 50 mA 100 mA
0 200
V
OUT
[V]
t [μs]
200 600
400 800 1000 1200
14.0 150
100
50
0
50
100
150
13.5
13.0
12.5
12.0
11.5
11.0
I
OUT
[mA]
C
L
= 22 μF
10 μF
V
OUT
I
OUT
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
25
3. Transient response characteristics of ON / OFF pin (Ta = 25C)
3. 1 VOUT = 3.3 V
VIN = 13.5 V, CL = 10 F, CIN = 0.1 F,
IOUT = 100 mA, VON / OFF = 0 V 13.5 V
3. 2 VOUT = 5.0 V
VIN = 13.5 V, CL = 10 F, CIN = 0.1 F,
IOUT = 100 mA, VON / OFF = 0 V 13.5 V
VOUT [V]
6
0
9
3
12
15
3
6
0
6
12
12
18
VON/OFF [V]
18
t [μs]
0 500500 1000 1500 2000
VOUT
VON/OFF
V
OUT
[V]
V
ON/OFF
[V]
t [μs]
0 500500 1000 1500 2000
6
0
9
3
12
15
3
6
0
6
12
12
18
18
V
OUT
V
ON/OFF
4. Load transient response characteristics dependent on capacitance (Ta = 25C)
4. 1 VOUT = 5.0 V
VIN = 13.5 V, CIN = 0.1 F, IOUT = 50 mA 100 mA
VIN = 13.5 V, CIN = 0.1 F, IOUT = 100 mA 50 mA
20 40 60 80 1000
0.5
0
Undershoot [V]
C
L
[μF]
0.4
0.3
0.2
0.1
20 40 60 80 1000
0.5
0
Overshoot [V]
C
L
[μF]
0.4
0.3
0.2
0.1
5. Input transient response characteristics dependent on capacitance (Ta = 25C)
5. 1 VOUT = 5.0 V
V
IN
= 7.0 V → 12.0 V, t
r
= 5.0
s, C
IN
= 0.1
F, I
OUT
= 30 mA
V
IN
= 12.0 V → 7.0 V, t
r
= 5.0
s, C
IN
= 0.1
F, I
OUT
= 30 mA
20 40 60 80 1000
0.7
0
Overshoot [V]
C
L
[μF]
0.6
0.5
0.4
0.3
0.2
0.1
20 40 60 80 1000
0.7
0
Undershoot [V]
C
L
[μF]
0.6
0.5
0.4
0.3
0.2
0.1
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1142A/B Series Rev.4.2_02
26
6. Example of equivalent series resistance vs. Output current characteristics (Ta = 25C)
100
0.1 200
IOUT [mA]
RESR []
CIN = CL = 0.1
F
0
Stable
C
IN
VIN
VSS
C
L*1
R
ESR
S-1142
A/B Series
VOUT
ON / OFF
*1. CL: TDK Corporation C3216X8R2A104K (0.1 F)
Figure 15 Figure 16
HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Rev.4.2_02 S-1142A/B Series
27
Marking Specification
1. HSOP-6
(1) (2) (3) (4)
(7) (8) (9)
(10)
(
13
) (
14
)
(5) (6)
(11) (12)
(15)
(
16
)
Top view
654
123
(1) to (5): Product name: S1142 (Fixed)
(6): Product type
(7), (8): Value of output voltage
(9): Operation temperature
(10) to (16): Lot number
No.
TITLE
ANGLE
UNIT
ABLIC Inc.
No. FH006-A-P-SD-2.1
mm
HSOP6-A-PKG Dimensions
FH006-A-P-SD-2.1
0.4±0.05
1.91
5.02±0.2
13
64
1.91
1.67±0.05
5
20.20±0.05
No.
TITLE
ANGLE
UNIT
ABLIC Inc.
mm
4
6
1
3
ø2.0±0.05
ø1.55±0.05 0.3±0.05
2.1±0.1
8.0±0.1
6.7±0.1
2.0±0.05
Feed direction
4.0±0.1(10 pitches:40.0±0.2)
HSOP6-A-Carrier Tape
FH006-A-C-SD-2.0
No. FH006-A-C-SD-2.0
No.
TITLE
ANGLE
UNIT
ABLIC Inc.
mm
QTY. 2,000
2±0.5
13.5±0.5
60°
2±0.5
ø13±0.2
ø21±0.8
Enlarged drawing in the central part
HSOP6-A-Reel
No. FH006-A-R-SD-1.0
FH006-A-R-SD-1.0
No.
TITLE
ANGLE
UNIT
ABLIC Inc.
mm
HSOP6-A
-Land Recommendation
No. FH006-A-L-SD-2.0
FH006-A-L-SD-2.0
0.76
1.91 1.91
2.03
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
Mouser Electronics
Authorized Distributor
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