HIGH RIPPLE-REJECTION LOW DROPOUT

LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR

S-1200 Series

Seiko Instruments Inc.

1

The S-1200 Series is a positive voltage regulator with

a low dropout voltage, high output voltage accuracy

developed based on CMOS technology.

A 0.1

µF small ceramic capacitor can be used. It

operates with low current consumption of 18

µA typ.

A built-in Output current protector prevents the load

current from exceeding the current capacitance of the

output transistor.

Compared with the voltage regulators using the

conventional

CMOS

process,

small

ceramic

capacitors are also available. Furthermore a small

SNT-6A(H) and SOT-23-5 packages realize high-

density mounting.

Features

• Output voltage:

1.5 V to 5.5 V, selectable in 0.1 V steps.

• Low ESR capacitor can be used: A ceramic capacitor of 0.1 µF or more can be used for the output

capacitor.

• Wide input voltage range:

2.0 V to 10.0 V

• High-accuracy output voltage:

±1.0%

• Low dropout voltage:

= 100 mA)

• Low current consumption:

During operation: 18

µA typ., 40 µA max.

During shutdown: 0.01

µA typ., 1.0 µA max.

• Output current:

*1

• High ripple rejection:

• Built-in overcurrent protector:

Overcurrent of output transistor can be restricted.

• Built-in ON/OFF circuit:

Ensures long battery life.

• Small package:

SOT-23-5, 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

• Power supply for personal communication devices

• Power supply for home electric/electronic appliances

• Power supply for cellular phones

Packages

Drawing Code

Package Name

Package

Tape

Reel

Land

SNT-6A(H)

PI006-A

PI006-A

PI006-A

PI006-A

SOT-23-5

MP005-A

MP005-A

MP005-A

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