HIGH RIPPLE-REJECTION AND LOW DROPOUT

CMOS VOLTAGE REGULATOR

S-L2980 Series

Seiko Instruments Inc.

1

The S-L2980 series is a positive voltage regulator with

a low dropout voltage, high output voltage accuracy,

and low current consumption developed based on

CMOS technology.

A built-in low on-resistance transistor provides a low

dropout voltage and a large output current. A shutdown

circuit ensures long battery life.

Various types of output capacitors can be used in the

S-L2980 series compared with the conventional CMOS

voltage regulators. A small ceramic capacitor can also

be used.

Features

• Output voltage:

1.5 V to 6.0 V, selectable in 0.1 V steps

• High accuracy output voltage: ±2.0 % accuracy

• Low dropout voltage:

• Low current consumption:

During operation: 90

μA typ., 140 μA max.

During shutdown: 0.1

μA typ., 1.0 μA max.

• High peak current capability:

*1

• Built-in shutdown circuit:

Ensure long battery life.

• Low ESR capacitor:

A 1.0

μF capacitor can be used as the output capacitor.

(A 2.2

μF capacitor can be used as the output capacitor for the products

whose output voltage is 1.7 V or less.)

• High ripple rejection:

70 dB typ. (at 1.0 kHz)

• Small package:

SOT-23-5

• Lead-free products

*1. Attention should be paid to the power dissipation of the package when the load 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

Package

Package Name

Drawing Code

Package

Tape

Reel

SOT-23-5

MP005-A

MP005-A

MP005-A