S-L2980 Series

www.sii-ic.com

HIGH RIPPLE-REJECTION AND LOW DROPOUT

CMOS VOLTAGE REGULATOR

© Seiko Instruments Inc., 2001-2012

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 ON/OFF

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

• Output voltage accuracy:

±2.0 %

• Dropout voltage:

• Current consumption:

During operation: 90

μA typ., 140 μA max.

During power-off: 0.1

μA typ., 1.0 μA max.

• Output current:

*1

• Output capacitor:

A ceramic capacitor of 1.0

μF or more can be used.

(A ceramic capacitor of 2.2

μF or more can be used for the products whose

output voltage is 1.7 V or less.)

• Ripple rejection:

70 dB typ. (f=1.0 kHz)

• Built-in ON/OFF circuit:

Ensures long battery life.

• Operation temperature range: Ta=–40°C to +85°C

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

Package

• SOT-23-5