Rev.1.1
_00
ULTRA LOW CURRENT CONSUMPTION
AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-1206 Series
The S-1206 Series is a positive voltage regulator with ultra low current
consumption, low dropout voltage, high output voltage accuracy, and 250
mA output current developed based on CMOS technology.
I/O capacitors are as small as 0.1
µF.
S-1206 Series operates at ultra
low current consumption of 1.0
µA
(typ.).
The built-in low-on-resistance transistor realizes low dropout voltage and
high output current. A built-in overcurrent protection circuit prevents the
load current from exceeding the current capacitance of the output
transistor.
Three packages, SOT-23-3, SOT-89-3, and SNT-6A(H), are available.
Compared with voltage regulators using a conventional CMOS process,
more types of capacitors, including small I/O capacitors, can be used with
the S-1206 Series.
The S-1206 Series features ultra-low current
consumption and comes in a small package, making them most suitable
for portable equipment.
Features
•
Output voltage :
1.2 to 5.2 V, selectable in 0.05 V steps.
•
Low equivalent series resistance capacitor can be used : A ceramic capacitor of 0.1
µF
or more can be used for the I/O
capacitor.
•
Wide input voltage range :
1.7 to 6.5 V
•
High-accuracy output voltage :
±1.0%
(1.2 to 1.45 V output product :
±15
mV)
•
Low dropout voltage :
150 mV typ. (3.0 V output product, at I
OUT
= 100 mA)
•
Low current consumption :
During operation : 1.0
µA
typ., 1.5
µA
max.
•
High output current :
250 mA output is possible. (3.0 V output product, at V
IN
≥
*1
V
OUT(S)
+
1.0 V)
•
Built-in overcurrent protection circuit :
Overcurrent of output transistor can be restricted.
•
Small package :
SOT-23-3, SOT-89-3, SNT-6A(H)
•
Lead-free products
*1.
Attention should be paid to the power dissipation of the package when the output current is large.
Applications
•
Power supply for battery-powered devices
•
Constant-voltage power supply for cellular phones
•
Constant-voltage power supply for portable equipments
Packages
Package Name
SOT-23-3
SOT-89-3
SNT-6A(H)
Drawing Code
Package
MP003-Z
UP003-A
PI006-A
Tape
MP003-Z
UP003-A
PI006-A
Reel
MP003-Z
UP003-A
PI006-A
Land
−
−
PI006-A
Seiko Instruments Inc.
1
SII [ SEIKO INSTRUMENTS INC ]
