Rev.3.0
_01
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT
CMOS VOLTAGE REGULATOR
S-1131 Series
The S-1131 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 large output current, and a
built-in overcurrent protector 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:
•
High-accuracy output voltage:
•
Low dropout voltage:
•
Low current consumption:
•
High peak current capability:
•
Built-in ON/OFF circuit:
•
High ripple rejection:
•
Built-in overcurrent protector:
•
Small package:
•
Lead-free products
1.5 V to 5.5 V, selectable in 0.1 V steps.
±1.0%
250 mV typ. (3.0 V output product, I
OUT
=
100 mA)
During operation: 35
µA
typ., 65
µA
max.
During shutdown: 0.1
µA
typ., 1.0
µA
max.
300 mA output is possible (at V
IN
≥
V
OUT(S)
+
1.0 V)
*1
Ensures long battery life.
70 dB typ. (at 1.0 kHz)
Overcurrent of output transistor can be restricted.
SOT-89-3, SOT-89-5, 6-Pin HSON(A)
*1.
Attention should be paid to the power dissipation of the package when the output current is large.
Applications
•
Power supply for DVD and CD-ROM drives
•
Power supply for battery-powered devices
•
Power supply for personal communication devices
•
Power supply for note PCs
Packages
Package Name
SOT-89-3
SOT-89-5
6-Pin HSON(A)
Package
UP003-A
UP005-A
PD006-A
Drawing Code
Tape
UP003-A
UP005-A
PD006-A
Reel
UP003-A
UP005-A
PD006-A
Seiko Instruments Inc.
1
SII [ SEIKO INSTRUMENTS INC ]
