S-1131 Series
www.ablicinc.com
HIGH RIPPLE-REJECTION AND LOW DROPOUT
MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
© ABLIC Inc., 2002-2014 Rev.4.1_02
1
The S-1131 Series is a positive voltage regulator with a low dropout voltage, high-accuracy output voltage, and
low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in
overcurrent protection circuit prevents the load current from exceeding the current capacitance of the output
transistor. An ON/OFF circuit ensures a long battery life, and small SOT-89-3, SOT-89-5 and 6-Pin HSON(A)
packages realize high-density mounting.
Features
Output voltage:
1.5 V to 5.5 V, selectable in 0.1 V step
Output voltage accuracy: 1.0%
Dropout voltage:
250 mV typ. (3.0 V output product, I
OUT
= 100 mA)
Current consumption: During operation: 35 A typ., 65 A max.
During power-off: 0.1 A typ., 1.0 A max.
Output current: Possible to output 300 mA (V
IN
V
OUT
S
1.0 V)
*1
Ripple rejection:
70 dB typ. (f = 1.0 kHz)
Built-in overcurrent protection circuit:
Limits overcurrent of output transistor.
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 output current is large.
*2. Refer to “ Product Name Structure” for details.
Applications
Constant-voltage power supply for DVD and CD-ROM drive
Constant-voltage power supply for battery-powered device
Constant-voltage power supply for personal communication device
Constant-voltage power supply for note book PC
Packages
SOT-89-3
SOT-89-5
6-Pin HSON(A)
