ULTRA LOW CURRENT CONSUMPTION

Seiko Instruments Inc.

1

The S-1206 Series is a positive voltage regulator with ultra low current

consumption, low dropout voltage, high output voltage accuracy, and 250

mA output current developed based on CMOS technology.

I/O capacitors are as small as 0.1

µF. S-1206 Series operates at ultra

low current consumption of 1.0

µA (typ.).

The built-in low-on-resistance transistor realizes low dropout voltage and

high output current. A built-in overcurrent protection circuit prevents the

load current from exceeding the current capacitance of the output

transistor.

Three packages, SOT-23-3, SOT-89-3, and SNT-6A(H), are available.

Compared with voltage regulators using a conventional CMOS process,

more types of capacitors, including small I/O capacitors, can be used with

the S-1206 Series.

The S-1206 Series features ultra-low current

consumption and comes in a small package, making them most suitable

for portable equipment.

Features

• Output voltage :

1.2 to 5.2 V, selectable in 0.05 V steps.

• Low equivalent series resistance capacitor can be used : A ceramic capacitor of 0.1 µF or more can be used for the I/O

capacitor.

• Wide input voltage range :

1.7 to 6.5 V

• High-accuracy output voltage :

±1.0% (1.2 to 1.45 V output product : ±15 mV)

• Low dropout voltage :

• Low current consumption :

During operation : 1.0

µA typ., 1.5 µA max.

• High output current :

≥

+ 1.0 V)

*1

• Built-in overcurrent protection circuit :

Overcurrent of output transistor can be restricted.

• Small package :

SOT-23-3, SOT-89-3, SNT-6A(H)

• Lead-free products

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

Applications

• Power supply for battery-powered devices

• Constant-voltage power supply for cellular phones

• Constant-voltage power supply for portable equipments

Packages

Drawing Code

Package Name

Package

Tape

Reel

Land

SOT-23-3

MP003-Z

MP003-Z

MP003-Z

−

SOT-89-3

UP003-A

UP003-A

UP003-A

−

SNT-6A(H)

PI006-A

PI006-A

PI006-A

PI006-A