S-816 Series

www.sii-ic.com

EXTERNAL TRANSISTOR TYPE

CMOS VOLTAGE REGULATOR

© Seiko Instruments Inc., 1996-2014

Seiko Instruments Inc.

1

The S-816 Series, developed using the CMOS technology, is an external transistor type positive voltage

regulator which incorporates an overcurrent protection circuit and an ON/OFF circuit. A low drop-out type

regulator with an output current ranging from several hundreds of mA to 1 A can be configured with the PNP

transistor driven by this IC.

Despite the features of the S-816 Series, which is low current consumption, the improvement in its transient

response characteristics of the IC with a newly deviced phase compensation circuit made it possible to employ

the products of the S-816 Series even in applications where heavy input variation or load variation is

experienced.

The S-816 Series regulator serves as an ideal power supply unit for portable devices when coupled with the

small SOT-23-5 package, providing numerous outstanding features, including low current consumption. Since

the S-816 Series can accommodate an input voltage of up to 16 V, it is also suitable when operating via an AC

adapter.



Features

• Output voltage:

2.5 V to 6.0 V, selectable in 0.1 V step

• Input voltage:

16 V max.

• Output voltage accuracy:

± 2.0%

• Current consumption:

During operation:

30

μA typ., 40 μA max.

During power-off:

1

μA max.

• Built-in overcurrent (base current) protection circuit

• Built-in ON/OFF circuit:

Ensures long battery life.

• Built-in current source (10 μA):

No need for a base-emitter resistance.

• Operation temperature range:

Ta =

−40°C to +85°C

• Lead-free, Sn 100%, halogen-free

*1

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



Applications

• Power supply for on-board such as battery device for portable telephone, electronic notebook, PDA

• Constant voltage power supply for camera, video equipment and portable communication equipment

• Power supply for CPU

• Post-regulator for switching regulator

• Main regulator in multiple-power supply system



Package

• SOT-23-5