S-L2980 Series
www.sii-ic.com
HIGH RIPPLE-REJECTION AND LOW DROPOUT
CMOS VOLTAGE REGULATOR
© Seiko Instruments Inc., 2001-2012 Rev.5.1_00
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:
120 mV typ. (3.0 V output product, I
OUT
=50 mA)
• Current consumption: During operation: 90 μA typ., 140 μA max.
During power-off: 0.1 μA typ., 1.0 μA max.
• Output current: Possible to output 150 mA (V
IN
≥V
OUT(S)
+1.0 V)
*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
• Lead-free, Sn 100%, halogen-free
*2
*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
