S-1170B33UC-OTSTFG - Seiko Semiconductors

S-1170 Series

www.ablicinc.com

HIGH RIPPLE-REJECTION AND LOW DROPOUT

HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

The S-1170 Series is a positive voltage regulator with a low dropout voltage, high-accuracy output voltage, and

low current consumption developed based on CMOS technology.

A built-in low on-resistance transistor provides a low dropout voltage and large output current, a built-in

overcurrent protection circuit prevents the load current from exceeding the current capacity of the output

transistor, and a built-in thermal shutdown circuit prevents damage caused by the heat. An ON/OFF circuit

ensures a long battery life. Compared with the voltage regulators using the conventional CMOS technology, a

larger variety of capacitors are available, including small ceramic capacitors. Small SOT-89-5 and 6-Pin

HSON(A) packages realize high-density mounting.

 Features

 Output voltage: 1.5 V to 5.5 V, selectable in 0.1 V step

 Output voltage accuracy: 1.0%

 Dropout voltage: 120 mV typ. (3.0 V output product, IOUT = 300 mA)

 Current consumption: During operation: 80 A typ., 160 A max.

During power-off: 0.1 A typ., 1.0 A max.

 Output current: Possible to output 800 mA (VIN  VOUT

(

)

 1.0 V)*1

 Input and output capacitors: A ceramic capacitor of 4.7 F or more can be used.

 Ripple rejection: 70 dB typ. (f = 1.0 kHz)

 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*2

*1. Attention should be paid to the power dissipation of the package when the output current is large.

*2. Refer to “ Product Name Structure” for details.

 Applications

 Constant-voltage power supply for DVD and CD-ROM drive

 Constant-voltage power supply for battery-powered device

 Constant-voltage power supply for personal communication device

 Constant-voltage power supply for notebook PC

 Packages

 SOT-89-5

 6-Pin HSON(A)

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

 Block Diagram

VIN

VSS

VOUT

Overcurrent

protection circuit

Thermal shutdown circuit

Reference

voltage circuit

ON/OFF

*1. Parasitic diode

ON/OFF

circuit





Figure 1

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

 Product Name Structure

Users can select the product type, output voltage, and package type for the S-1170 Series. Refer to “1.

Product name” regarding the contents of product name, “2. Packages” regarding the package drawings,

“3. Product name list” regarding details of the product name.

1. Product name

(1) SOT-89-5

S-1170 x xx UC  xxx TF x

Output voltage

15 to 55

(E.g., when the output voltage is 1.5 V, it is expressed

as 15.

)

Package name (abbreviation)

UC: SOT-89-5

Environmental code

U: Lead-free (Sn 100%), halogen-free

G: Lead-free (for details, please contact our sales office)

Product type*3

A: ON/OFF pin negative logic

B: ON/OFF pin positive logic

IC direction in tape specifications*1

Product name (abbreviation)*2

*1. Refer to the tape drawing.

*2. Refer to the product name list.

*3. Refer to “3. ON/OFF pin” in “ Operation”.

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

(2) 6-Pin HSON(A)

S-1170 x xx PD  xxx TF x

Output voltage

15 to 55

(E.g., when the output voltage is 1.5 V, it is expressed

as 15.

)

Package name (abbreviation)

PD: 6-Pin HSON(A)

Environmental code

S: Lead-free, halogen-free

G: Lead-free (for details, please contact our sales office)

Product type*3

A: ON/OFF pin negative logic

B: ON/OFF pin positive logic

IC direction in tape specifications*1

Product name (abbreviation)*2

*1. Refer to the tape drawing.

*2. Refer to the product name list.

*3. Refer to “3. ON/OFF pin” in “ Operation”.

2. Packages

Package Name Drawing Code

Package Tape Reel

SOT-89-5 UP005-A-P-SD UP005-A-C-SD UP005-A-R-SD

6-Pin HSON(A) PD006-A-P-SD PD006-A-C-SD PD006-A-R-SD

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

3. Product name list

Table 1

Output Voltage SOT-89-5 6-Pin HSON(A)

1.5 V 1.0% S-1170B15UC-OTATFx S-1170B15PD-OTATFz

1.6 V 1.0% S-1170B16UC-OTBTFx S-1170B16PD-OTBTFz

1.7 V 1.0% S-1170B17UC-OTCTFx S-1170B17PD-OTCTFz

1.8 V 1.0% S-1170B18UC-OTDTFx S-1170B18PD-OTDTFz

1.9 V 1.0% S-1170B19UC-OTETFx S-1170B19PD-OTETFz

2.0 V 1.0% S-1170B20UC-OTFTFx S-1170B20PD-OTFTFz

2.1 V 1.0% S-1170B21UC-OTGTFx S-1170B21PD-OTGTFz

2.2 V 1.0% S-1170B22UC-OTHTFx S-1170B22PD-OTHTFz

2.3 V 1.0% S-1170B23UC-OTITFx S-1170B23PD-OTITFz

2.4 V 1.0% S-1170B24UC-OTJTFx S-1170B24PD-OTJTFz

2.5 V 1.0% S-1170B25UC-OTKTFx S-1170B25PD-OTKTFz

2.6 V 1.0% S-1170B26UC-OTLTFx S-1170B26PD-OTLTFz

2.7 V 1.0% S-1170B27UC-OTMTFx S-1170B27PD-OTMTFz

2.8 V 1.0% S-1170B28UC-OTNTFx S-1170B28PD-OTNTFz

2.9 V 1.0% S-1170B29UC-OTOTFx S-1170B29PD-OTOTFz

3.0 V 1.0% S-1170B30UC-OTPTFx S-1170B30PD-OTPTFz

3.1 V 1.0% S-1170B31UC-OTQTFx S-1170B31PD-OTQTFz

3.2 V 1.0% S-1170B32UC-OTRTFx S-1170B32PD-OTRTFz

3.3 V 1.0% S-1170B33UC-OTSTFx S-1170B33PD-OTSTFz

3.4 V 1.0% S-1170B34UC-OTTTFx S-1170B34PD-OTTTFz

3.5 V 1.0% S-1170B35UC-OTUTFx S-1170B35PD-OTUTFz

3.6 V 1.0% S-1170B36UC-OTVTFx S-1170B36PD-OTVTFz

3.7 V 1.0% S-1170B37UC-OTWTFx S-1170B37PD-OTWTFz

3.8 V 1.0% S-1170B38UC-OTXTFx S-1170B38PD-OTXTFz

3.9 V 1.0% S-1170B39UC-OTYTFx S-1170B39PD-OTYTFz

4.0 V 1.0% S-1170B40UC-OTZTFx S-1170B40PD-OTZTFz

4.1 V 1.0% S-1170B41UC-OUATFx S-1170B41PD-OUATFz

4.2 V 1.0% S-1170B42UC-OUBTFx S-1170B42PD-OUBTFz

4.3 V 1.0% S-1170B43UC-OUCTFx S-1170B43PD-OUCTFz

4.4 V 1.0% S-1170B44UC-OUDTFx S-1170B44PD-OUDTFz

4.5 V 1.0% S-1170B45UC-OUETFx S-1170B45PD-OUETFz

4.6 V 1.0% S-1170B46UC-OUFTFx S-1170B46PD-OUFTFz

4.7 V 1.0% S-1170B47UC-OUGTFx S-1170B47PD-OUGTFz

4.8 V 1.0% S-1170B48UC-OUHTFx S-1170B48PD-OUHTFz

4.9 V 1.0% S-1170B49UC-OUITFx S-1170B49PD-OUITFz

5.0 V 1.0% S-1170B50UC-OUJTFx S-1170B50PD-OUJTFz

5.1 V 1.0% S-1170B51UC-OUKTFx S-1170B51PD-OUKTFz

5.2 V 1.0% S-1170B52UC-OULTFx S-1170B52PD-OULTFz

5.3 V 1.0% S-1170B53UC-OUMTFx S-1170B53PD-OUMTFz

5.4 V 1.0% S-1170B54UC-OUNTFx S-1170B54PD-OUNTFz

5.5 V 1.0% S-1170B55UC-OUOTFx S-1170B55PD-OUOTFz

Remark 1. Please contact our sales office for products with an output voltage other than those

specified above or type A products.

2. x: G or U

z: G or S

3. Please select products of environmental code = U for Sn 100%, halogen-free products.

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

 Pin Configurations

5 4

1 3 2

SOT-89-5

Top view

Table 2

Pin No. Symbol Description

1 ON/OFF ON/OFF pin

2 VSS GND pin

3 NC*1 No connection

4 VIN Input voltage pin

5 VOUT Output voltage pin

*1. The NC pin is electrically open.

The NC pin can be connected to VIN pin or VSS pin.

Figure 2

1. Connect the exposed thermal die

pad at shadowed area to the

board, and set electric potential

open or VSS.

However, do not use it as the

function of electrode.

*2. Be careful of the contact with

other wires because the pinch

lead has the same electric

potential as VSS.

6-Pin HSON(A)

Top view

Bottom view

Table 3

Pin No. Symbol Description

1 VOUT*1 Output voltage pin

2 VOUT*1 Output voltage pin

3 ON/OFF ON/OFF pin

4 VSS GND pin

5 VIN*2 Input voltage pin

6 VIN*2 Input voltage pin

*1. Short pins 1 and 2.

*2. Short pins 5 and 6.

Figure 3

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

 Absolute Maximum Ratings

Table 4

(Ta  25C unless otherwise specified)

Parameter Symbol Absolute Maximum Rating Unit

Input voltage VIN VSS  0.3 to VSS  7 V

VON/OFF VSS  0.3 to VIN  0.3 V

Output voltage VOUT VSS  0.3 to VIN  0.3 V

Power

dissipation

SOT-89-5 PD 1000

*1 mW

6-Pin HSON(A)

Operation ambient temperature To

40 to 85 C

Storage temperature Tst

40 to 125 C

*1. At mounted on printed circuit board

[Mounted board]

(1) Board size : 40 mm×40 mm×t1.6 mm

(2) Cu wiring shear : 180 % at both sides

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.

Power

Dissipation

PD (mW)

Ambient Temperature Ta (C)

050 100 150

1200

800

400

SOT-89-5

6-Pin HSON(A)

1000

600

200

Figure 4 Power Dissipation of Package (Mounted on Printed Circuit Board)

Caution Thermal shutdown circuit may operate when junction temperature is 150 C.

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

 Electrical Characteristics

Table 5

(Ta  25C unless otherwise specified)

Parameter Symbol Conditions Min. Typ. Max. Unit Test

Circuit

Output voltage*1 VOUT(E) V

IN  VOUT(S)  1.0 V, IOUT  100 mA VOUT(S)

 0.99

VOUT(S)

 1.01 V 1

Output current*2 IOUT V

IN  VOUT

(

)

 1.0 V 800*5   mA 3

Dropout voltage*3 Vdrop I

OUT  300 mA

VOUT

(

)

 1.5 V  0.35 0.45 V 1

VOUT

(

)

 1.6 V  0.30 0.35 V 1

VOUT

(

)

 1.7 V  0.25 0.30 V 1

1.8 V  VOUT

(

)

 2.0 V  0.20 0.26 V 1

2.1 V  VOUT

(

)

 2.9 V  0.15 0.22 V 1

3.0 V  VOUT

(

)

 5.5 V  0.12 0.18 V 1

Line regulation VOUT1 VOUT(S)  0.5 V  VIN  6.5 V,

IOUT  100 mA  0.05 0.3 %/V 1

VINVOUT

Load regulation VOUT2 VIN  VOUT(S)  1.0 V,

1.0 mA  IOUT  300 mA  30 100 mV 1

Output voltage

temperature coefficient*4

VOUT VIN  VOUT(S)  1.0 V, IOUT  10 mA,

40C  Ta  85C  150  ppm

/ C1

TaVOUT

Current consumption

during operation ISS1 VIN  VOUT(S)  1.0 V, ON/OFF pin  ON,

no load  80 160 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  2.0  6.5 V 

ON/OFF pin

input voltage “H” VSH V

IN  VOUT(S)  1.0 V, RL  1.0 k 1.5   V 4

ON/OFF pin

input voltage “L” VSL V

IN  VOUT(S)  1.0 V, RL  1.0 k   0.3 V 4

ON/OFF pin

input current “H” ISH V

IN  6.5 V, VON/OFF  6.5 V 0.1  0.1 A4

ON/OFF pin

input current “L” ISL V

IN  6.5 V, VON/OFF  0 V 0.1  0.1 A4

Ripple rejection RR



OUT(S)



1.0 V,



1.0 kHz,



rip



0.5 Vrms,

OUT



100 mA

1.5 V



OUT(S)



3.0 V

 70  dB 5

3.1 V



OUT(S)



5.5 V

 65  dB 5

Short-circuit current Ishort VIN  VOUT(S)  1.0 V, ON/OFF pin  ON,

VOUT  0 V  350  mA 3

Thermal shutdown

detection temperature TSD Junction temperature  150  C 

Thermal shutdown

release temperature TSR Junction temperature  120  C 

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

*1. VOUT(S): Set output voltage

VOUT(E): Actual output voltage

Output voltage when fixing IOUT ( 100 mA) and inputting VOUT

(

)

 1.0 V

*2. The output current at which the output voltage becomes 95% of VOUT

(

)

after gradually increasing the output current.

*3. Vdrop  VIN1  (VOUT3  0.98)

OUT3 is the output voltage when VIN  VOUT(S)  1.0 V and IOUT  300 mA.

VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input

voltage.

*4. A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.

VOUT

Ta []

mV/°C *1 = VOUT(S) []

V*2  VOUT

Ta VOUT

[]

ppm/°C *3  1000

*1. Change in temperature of output voltage

*2. Set output voltage

*3. Output voltage temperature coefficient

*5. The output current can be at least this value.

Due to restrictions on 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 RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

 Test Circuits

VSS

VOUT

ON/OFF

Set to ON

VIN



Figure 5

VSS

VOUT

ON/OFF

Set to

VIN or GND

VIN



Figure 6

Set to ON

VSS

VOUT

ON/OFF

VIN



Figure 7

VSS

VOUT

ON/OFF

VIN

A V RL

 

Figure 8

VSS

VOUT

ON/OFF

VIN

Set to ON



Figure 9

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

 Standard Circuit

ON/OFF

VSS

VOUTVIN

CIN

Input Output

GND

Single GND

*1. C

IN is a capacitor for stabilizing the input.

*2. A ceramic capacitor of 4.7 F or more can be used for CL.

Figure 10

Caution The above connection diagram and constant will not guarantee successful operation.

Perform thorough evaluation using the actual application to set the constant.

 Condition of Application

Input capacitor (CIN): 4.7 F or more

Output capacitor (CL): 4.7 F or more

ESR of output capacitor: 0.5  or less

Caution Generally a series regulator may cause oscillation, depending on the selection of external

parts. Check that no oscillation occurs with the application using the above capacitor.

 Selection of Input and Output Capacitors (CIN, CL)

The S-1170 Series requires an output capacitor between the VOUT pin and the VSS pin for phase

compensation. A ceramic capacitor with a capacitance of 4.7 F or more provides a stable operation in all

temperature ranges. When using an OS capacitor, a tantalum capacitor, or an aluminum electrolytic

capacitor, the capacitance must be 4.7 F or more, and the ESR must be 0.5  or less.

The output overshoot and undershoot values, which are transient response characteristics, vary depending

on the output capacitor value. The required capacitance value for the input capacitor differs depending on

the application.

The recommended value for an application is CIN  4.7 F and CL  4.7 F, however, perform a thorough

evaluation using the actual device, including evaluation of temperature characteristics.

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

 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. Low ESR

A capacitor whose ESR (Equivalent Series Resistance) is low. The S-1170 Series enables use of a low

ESR capacitor, such as a ceramic capacitor, for the output-side capacitor (CL). A capacitor whose ESR

is 0.5  or less can be used.

3. Output voltage (VOUT)

The accuracy of the output voltage is ensured at 1.0% under the specified conditions of fixed input

voltage*1, fixed output current, and fixed temperature.

*1. Differs depending 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.

4. Line regulation 





VOUT1

VINVOUT

Indicates the dependency of the output voltage on the input voltage. That is, the values show how much

the output voltage changes due to a change in the input voltage with the output current remaining

unchanged.

5. Load regulation (VOUT2)

Indicates the dependency of the output voltage on the output current. That is, the values show how

much the output voltage changes due to a change in the output current with the input voltage remaining

unchanged.

6. 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)  1.0 V.

Vdrop  VIN1  (VOUT3  0.98)

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

7. Output voltage temperature coefficient 





VOUT

Ta  VOUT

The shaded area in Figure 11 is the range where VOUT varies in the operation temperature range when the

output voltage temperature coefficient is 150 ppm/C.

OUT

(

)

Example of S-1170B28 typ. product

40



0.42 mV/C

OUT

[V]

*1. V

OUT(E)

is the value of the output voltage measured at Ta = 25C.



85 Ta [C]



0.42 mV/C

Figure 11

A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.

VOUT

Ta []

mV/°C *1 = VOUT(S) []

V*2  VOUT

Ta  VOUT

[]

ppm/°C *3  1000

*1. Change in temperature of output voltage

*2. Set output voltage

*3. Output voltage temperature coefficient

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

 Operation

1. Basic operation

Figure 12 shows the block diagram of the S-1170 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.

*1. Parasitic diode

VSS

Current

supply





Vfb

Vref

VIN

VOUT

Error

amplifier

Reference voltage

circuit

Figure 12

2. Output transistor

In the S-1170 Series, a low on-resistance P-channel MOS FET is used as the output transistor.

Be sure that VOUT does not exceed VIN  0.3 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 RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

3. ON/OFF pin

This pin starts and stops the regulator.

When the ON/OFF pin is set to 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 becomes the VSS level due to the internally divided

resistance of several hundreds k between the VOUT pin and the VSS pin.

The structure of the ON/OFF pin is as shown in Figure 13. Since the ON/OFF pin is neither pulled down

nor pulled up internally, do not use it in the floating status. In addition, note that the current consumption

increases if a voltage of 0.3 V to VIN  0.3 V is applied to the ON/OFF pin. 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 B type.

Table 6

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 13

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

4. Thermal shutdown circuit

The S-1170 Series implements a thermal shutdown circuit to protect the device from damage due to

overheating. When the junction temperature rises to 150C (typ.), the thermal shutdown circuit operates

and the regulator operation stops. When the junction temperature drops to 120C (typ.), the thermal

shutdown circuit is released and the regulator operation resumes.

If the thermal shutdown circuit starts operating due to self-heating, the regulator operation stops and the

output voltage falls. When the regulator operation has stopped, no self-heat is generated and the

temperature of the IC is lowered. When the temperature has dropped, the thermal shutdown circuit is

released, the regulator operation resumes, and self-heat is generated again. By repeating this procedure,

the output voltage waveform forms pulses. 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 7

Thermal Shutdown Circuit VOUT Pin Voltage

Operating: 150C (typ.) VSS level

Released: 120C (typ.) Set value

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

 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

(1.0 mA or less).

 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-1170 Series. However, be sure to perform sufficient

evaluation under the actual usage conditions for selection, including evaluation of temperature

characteristics.

Input capacitor (CIN): 4.7 F or more

Output capacitor (CL): 4.7 F or more

Equivalent series resistance (ESR): 0.5  or less

 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.

 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

5 in “ Electrical Characteristics” and footnote *5 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 RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

 Characteristics (Typical Data)

(1) Output voltage vs. Output current (when load current increases)

S-1170B15 (Ta  25C) S-1170B30 (Ta  25C)

VOUT [V]

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0 200 400 600 800 1000 1200

VIN  2.0 V

2.5 V

6.5 V

VOUT [V]

3.5

3.0

2.5

2.0

1.5

1.0

0.5

400 600 800 1000

2000 1200

VIN  3.5 V

4.0 V

6.5 V

IOUT [mA] IOUT [mA]

S-1170B50 (Ta  25C)

VOUT [V]

400 600 8002000 1000 1200

VIN  5.5 V

6.0 V

6.5 V

Remark In determining the output current, attention

should be paid to the following.

1. The minimum output current value and

footnote *5 in Table 5 in “ Electrical

Characteristics”

2. The package power dissipation

IOUT [mA]

(2) Output voltage vs. Input voltage

S-1170B15 (Ta  25C) S-1170B30 (Ta  25C)

VOUT [V]

1.6

1.5

1.4

1.3

1.2

1.1

1.0

3.53.0

2.5 2.0 1.5 1.0

IOUT  1 mA

10 mA

100 mA

300 mA

VOUT [V]

3.1

3.0

2.9

2.8

2.7

2.6

2.5 5.04.5

4.0 3.53.02.5

IOUT  1 mA

10 mA

100 mA

300 mA

VIN [V] VIN [V]

S-1170B50 (Ta  25C)

VOUT [V]

5.1

5.0

4.9

4.8

4.7

4.6

4.5

7.06.5

6.0 5.5 5.0 4.5

IOUT  1 mA

10 mA

100 mA

300 mA

VIN [V]

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

(3) Dropout voltage vs. Output current

S-1170B15 S-1170B30

Vdrop [V]

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0 100 400 600 900

200 300 500 700 800

40C

25C

85C

Vdrop [V]

0.6

0.5

0.4

0.3

0.2

0.1

0 100 400 600 900

200 300 500 700 800

40C

25C

85C

IOUT [mA]

S-1170B50

Vdrop [V]

0.6

0.5

0.4

0.3

0.2

0.1

0 100 400 600 900

200 300 500 700 800

40C

25C

85C

IOUT [mA]

(4) Dropout voltage vs. Set output voltage

Vdrop [V]

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

1 2 3 4 5 6

600 mA

800 mA

300 mA

10 mA

VOUT(S) [V]

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

(5) Output voltage vs. Ambient temperature

S-1170B15 (IOUT  10 mA) S-1170B30 (IOUT  10 mA)

VOUT(E) [V]

1.70

1.65

1.60

1.55

1.50

1.45

1.40

1.35

1.30

25 75 85

40 0 50

VOUT(E) [V]

3.20

3.15

3.10

3.05

3.00

2.95

2.90

2.85

2.80

25 75 85

40 0 50

Ta [C]

S-1170B50 (IOUT  10 mA)

VOUT(E) [V]

5.20

5.15

5.10

5.05

5.00

.95

.90

.85

.80 25

25 75 85

40 0 50

Ta [C]

(6) Current consumption vs. Input voltage

S-1170B15 (Ta  25C) S-1170B30 (Ta  25C)

ISS1 [A]

0 1 3 5 7

ISS1 [A]

0 1 3 5 7

IN [V]

S-1170B50 (Ta  25C)

ISS1 [A]

0 1 3 5 7

IN [V]

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

(7) Ripple rejection

S-1170B15 (Ta  25C) S-1170B30 (Ta  25C)

VIN  2.5 V, COUT  4.7 F VIN  4.0 V, COUT  4.7 F

Ripple Rejection [dB]

100

100 1k 10k 100k

IOUT



50 mA

100 mA

Ripple Rejection [dB]

100

100 1k 10k 100k

IOUT  50 mA

100 mA

Frequency [Hz]

S-1170B50 (Ta  25C)

VIN  6.0 V, COUT  4.7 F

Ripple Rejection [dB]

100

100 1k 10k 100k

IOUT  50 mA

100 mA

Frequency [Hz]

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

S-1170 Series Rev.4.1_02

 Reference Data

(1) Input transient response characteristics

S-1170B15 S-1170B30

IOUT  100 mA, tr  tf  5.0 s, COUT  4.7 F, CIN  4.7 F IOUT  100 mA, tr  tf  5.0 s, COUT  4.7 F, CIN  4.7 F

VOUT [V]

20 10 0 10 20 30 40 50 60

1.62

1.60

1.58

1.56

1.54

1.52

1.50

1.48

1.46

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

VIN

VOUT

VIN [V]

VOUT [V]

20 10 010 20 30 40 50 60

3.08

3.06

3.04

3.02

3.00

2.98

2.96

6.0

5.0

4.0

3.0

2.0

1.0

VIN

VOUT

VIN [V]

t [s] t [s]

S-1170B50

IOUT  100 mA, tr  tf = 5.0 s, COUT  4.7 F, CIN  4.7 F

VOUT [V]

20 10 0 10 20 30 40 50 60

5.12

5.10

5.08

5.06

5.04

5.02

5.00

4.98

4.96

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

VIN

VOUT

VIN [V]

t [s]

(2) Load transient response characteristics

S-1170B15 (Ta  25C) S-1170B30 (Ta  25C)

VIN  2.5 V, COUT  4.7 F, CIN  4.7 F, IOUT  50 mA 100 mA VIN  4.0 V, COUT  4.7 F, CIN  4.7 F, IOUT  50 mA 100 mA

VOUT [V]

1.70

1.65

1.60

1.55

1.50

1.45

1.40

150

100

50

100

150

0 20 40 60 80 100 120 140

20 160

IOUT

VOUT

IOUT [mA]

VOUT [V]

150

100

50

100

150

3.20

3.15

3.10

3.05

3.00

2.95

2.90 020 40 60 80 100 120 140

20 160

IOUT

VOUT

IOUT [mA]

t [s] t [s]

S-1170B50 (Ta  25C)

VIN  6.0 V, COUT  4.7 F, CIN  4.7 F, IOUT  50 mA 100 mA

VOUT [V]

5.20

5.15

5.10

5.05

5.00

4.95

4.90

150

100

50

100

150

0 20 40 60 80 100 120 140

20 160

VOUT

IOUT

IOUT [mA]

t [s]

HIGH RIPPLE-REJECTION LOW DROPOUT HIGH OUTPUT CURRENT CMOS VOLTAGE REGULATOR

Rev.4.1_02 S-1170 Series

(3) ON/OFF pin transient response characteristics

S-1170B15 (Ta  25C) S-1170B30 (Ta  25C)

VIN  2.5 V, COUT  4.7 F, CIN  4.7 F, IOUT  100 mA VIN  4.0 V, COUT  4.7 F, CIN  4.7 F, IOUT  100 mA

VOUT [V]

1

2

3

10 10 20 30 40 50 60 70

10 80 90

VON/OFF

VOUT

VON/OFF [V]

VOUT [V]

2

4

6

1

010 20 30 40 50 60 70

10 80 90

VON/OFF

VOUT

VON/OFF [V]

t [s] t [s]

S-1170B50 (Ta  25C)

VIN  6.0 V, COUT  4.7 F, CIN  4.7 F, IOUT  100 mA

VOUT [V]

3

6

1

0 10 20 30 40 50 60 70

10 80 90

VON/OFF

VOUT

VON/OFF [V]

t [s]

S-1170B15 (Ta  25C) S-1170B30 (Ta  25C)

VIN  2.5 V, COUT  4.7 F, CIN  4.7 F, IOUT  300 mA VIN  4.0 V, COUT  4.7 F, CIN  4.7 F, IOUT  300 mA

VOUT [V]

1

2

3

1

0 10 20 30 40 50 60 70

10 80 90

VON/OFF

VOUT

VON/OFF [V]

VOUT [V]

2

4

6

1

010 20 30 40 50 60 70

10 80 90

VON/OFF

VOUT

VON/OFF [V]

t [s] t [s]

S-1170B50 (Ta  25C)

VIN  6.0 V, COUT  4.7 F, CIN  4.7 F, IOUT  300 mA

VOUT [V]

3

6

1

0 10 20 30 40 50 60 70

10 80 90

VON/OFF

VOUT

VON/OFF [V]

t [s]

No.

TITLE

UNIT

ANGLE

ABLIC Inc.

1.5±0.1 1.5±0.1

1.6±0.2

4.5±0.1

132

1.5±0.1

0.4±0.05

0.4±0.1

0.45±0.1

0.4±0.1

SOT895-A-PKG Dimensions

No. UP005-A-P-SD-2.0

UP005-A-P-SD-2.0

45°

0.3

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. UP005-A-C-SD-2.0

UP005-A-C-SD-2.0

SOT895-A-Carrier Tape

Feed direction

4.0±0.1(10 pitches : 40.0±0.2)

No.

TITLE

UNIT

ANGLE

ABLIC Inc.

16.5max.

13.0±0.3

QTY. 1,000

(60°)

No. UP005-A-R-SD-1.1

UP005-A-R-SD-1.1

SOT895-A-Reel

Enlarged drawing in the central part

No.

TITLE

UNIT

ANGLE

ABLIC Inc.

(1.5)

2.90±0.1

0.5typ.

0.95±0.05

0.30

+0.1

-0.05

0.80

+0.1

-0.05

0.15±0.05

HSON6A-A-PKG Dimensions

No. PD006-A-P-SD-5.0

PD006-A-P-SD-5.0

The exposed thermal die pad has different

electric potential depending on the product.

Confirm specifications of each product.

Do not use it as the function of electrode.

No.

TITLE

UNIT

ANGLE

ABLIC Inc.

ø1.05±0.05

0.2±0.05

1.5±0.1

ø1.55±0.05

2.0±0.05

4.0±0.1

3.3±0.1 4.0±0.1

Feed direction

HSON6A-A-Carrier Tape

No. PD006-A-C-SD-2.0

PD006-A-C-SD-2.0

No.

TITLE

UNIT

ANGLE

ABLIC Inc.

QTY. 3,000

HSON6A-A-Reel

(60°)

ø13±0.2

12.5max.

9.0±0.3

Enlarged drawing in the central part

No. PD006-A-R-SD-1.0

PD006-A-R-SD-1.0

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.

2.0-2018.01

www.ablicinc.com

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

ABLIC:

S-1170B21UC-OTGTFG S-1170B33UC-OTSTFG S-1170B47UC-OUGTFG S-1170B18UC-OTDTFU S-1170B30UC-

OTPTFU S-1170B46UC-OUFTFU S-1170B35UC-OTUTFU S-1170B42UC-OUBTFU S-1170B43UC-OUCTFU S-

1170B51UC-OUKTFU S-1170B24UC-OTJTFU S-1170B48UC-OUHTFU S-1170B55UC-OUOTFU S-1170B29UC-

OTOTFU S-1170B23UC-OTITFU S-1170B54UC-OUNTFU S-1170B40UC-OTZTFU S-1170B53UC-OUMTFU S-

1170B19UC-OTETFU S-1170B39UC-OTYTFU S-1170B47UC-OUGTFU S-1170B20UC-OTFTFU S-1170B34UC-

OTTTFU S-1170B37UC-OTWTFU S-1170B50UC-OUJTFU S-1170B27UC-OTMTFU S-1170B49UC-OUITFU S-

1170B52UC-OULTFU S-1170B28UC-OTNTFU S-1170B15UC-OTATFU S-1170B32UC-OTRTFU S-1170B31UC-

OTQTFU S-1170B38UC-OTXTFU S-1170B22UC-OTHTFU S-1170B36UC-OTVTFU S-1170B44UC-OUDTFU S-

1170B16UC-OTBTFU S-1170B41UC-OUATFU S-1170B25UC-OTKTFU S-1170B45UC-OUETFU S-1170B33UC-

OTSTFU S-1170B17UC-OTCTFU S-1170B21UC-OTGTFU S-1170B26UC-OTLTFU

Seiko Instruments:

S-1170B15UC-OTATFG S-1170B16UC-OTBTFG S-1170B17UC-OTCTFG S-1170B18UC-OTDTFG S-1170B19UC-

OTETFG S-1170B20UC-OTFTFG S-1170B22UC-OTHTFG S-1170B23UC-OTITFG S-1170B24UC-OTJTFG S-

1170B25UC-OTKTFG S-1170B26UC-OTLTFG S-1170B27UC-OTMTFG S-1170B28UC-OTNTFG S-1170B29UC-

OTOTFG S-1170B30UC-OTPTFG S-1170B31UC-OTQTFG S-1170B32UC-OTRTFG S-1170B34UC-OTTTFG S-

1170B35UC-OTUTFG S-1170B36UC-OTVTFG S-1170B37UC-OTWTFG S-1170B38UC-OTXTFG S-1170B39UC-

OTYTFG S-1170B40UC-OTZTFG S-1170B41UC-OUATFG S-1170B42UC-OUBTFG S-1170B43UC-OUCTFG S-

1170B44UC-OUDTFG S-1170B45UC-OUETFG S-1170B46UC-OUFTFG S-1170B48UC-OUHTFG S-1170B49UC-

OUITFG S-1170B50UC-OUJTFG S-1170B51UC-OUKTFG S-1170B52UC-OULTFG S-1170B53UC-OUMTFG S-

1170B54UC-OUNTFG S-1170B55UC-OUOTFG