S-1132 Series

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HIGH RIPPLE-REJECTION AND LOW DROPOUT

MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR

© Seiko Instruments Inc., 2004-2015

Seiko Instruments Inc.

1

The S-1132 Series is a positive voltage regulator with a low dropout voltage, high-accuracy output voltage, and low current

consumption (300 mA output current) developed based on CMOS technology.

A 0.1

μF small ceramic capacitor can be used. It operates with low current consumption of 20 μA typ. A built-in overcurrent

protection circuit prevents the output current from exceeding the current capacity of the output transistor.

Compared with the conventional 300 mA output current CMOS voltage regulators, high-density mounting is realized by using

the super-small SNT-6A(H) package and a 0.1

μF small ceramic capacitor.

Also, the low current consumption makes the S-1132 Series ideal for mobile devices.



Features

• Output voltage:

1.5 V to 5.5 V, selectable in 0.1 V step

• Input voltage:

2.0 V to 6.5 V

• Output voltage accuracy:

±1.0%

• Dropout voltage:

= 100 mA)

• Current consumption:

During operation:

20

μA typ., 40 μA max.

During power-off:

0.01

μA typ., 1.0 μA max.

• Output current:

*1

• Input and output capacitors:

A ceramic capacitor of 0.1

μF 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 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

• Power supply for battery-powered device

• Power supply for personal communication device

• Power supply for home electric/electronic appliance

• Power supply for cellular phone



Packages

• SOT-23-5

• SOT-89-5

• SNT-6A(H)