Rev.4.1_00
HIGH RIPPLE-REJECTION AND LOW DROPOUT
CMOS VOLTAGE REGULATOR
S-L2980 Series
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
1.5 V to 6.0 V, selectable in 0.1 V steps
• Output voltage:
±2.0 % accuracy
• High accuracy output voltage:
• Low dropout voltage:
• Low current consumption:
120 mV typ. (at 3.0 V output product, IOUT=50 mA)
During operation: 90 μA typ., 140 μA max.
During shutdown: 0.1 μA typ., 1.0 μA max.
150 mA output is possible. (at VIN≥VOUT(S)+1.0 V)*1
Ensure long battery life.
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.)
70 dB typ. (at 1.0 kHz)
• High peak current capability:
• Built-in shutdown circuit:
• Low ESR capacitor:
• High ripple rejection:
• 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
Tape
Package
MP005-A
Reel
MP005-A
SOT-23-5
MP005-A
1
Seiko Instruments Inc.
SII [ SEIKO INSTRUMENTS INC ]
