S-1135 Series
www.sii-ic.com
© Seiko Instruments Inc., 2008-2013
HIGH RIPPLE-REJECTION LOW DROPOUT
MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.1
_00
The S-1135 Series, developed using the CMOS technology, is a positive voltage regulator IC which has the low dropout
voltage, the high-accuracy output voltage and the low current consumption (300 mA output current).
A 1.0
μF
small ceramic capacitor can be used. It operates with low current consumption of 45
μA
typ.
The overcurrent protection circuit prevents the load current from exceeding the capacitance of output transistor. The
ON / OFF circuit ensures longer battery life.
Various capacitors, also small ceramic capacitors, can be used for this IC more than for the conventional regulator ICs
which have CMOS technology.
Furthermore, a small SOT-89-5, SOT-23-5, and HSNT-6A packages realize high-density mounting.
Features
•
Output voltage:
•
Input voltage:
•
Output voltage accuracy:
•
Dropout voltage:
•
Current consumption:
•
Output current:
•
Input and output capacitors :
•
Ripple rejection:
•
Built-in overcurrent protection circuit:
•
Built-in ON / OFF circuit:
•
Discharge shunt function is selectable.
•
Pull-up or pull-down resistor is selectable.
•
Operation temperature range:
•
Lead-free, Sn 100%, halogen-free
*2
1.0 V to 3.5 V, selectable in 0.05 V step
1.5 V to 5.5 V
±1.0%
(1.0 V to 1.45 V output product :
±15
mV)
160 mV typ. (2.6 V output product, I
OUT
=
300 mA)
During operation:
45
μA
typ., 65
μA
max.
During power-off:
0.1
μA
typ., 1.0
μA
max.
Possible to output 300 mA (V
IN
≥
V
OUT(S)
+
1.0 V)
*1
A ceramic capacitor of 1.0
μF
or more can be used.
70 dB typ. (1.0 V output product, f = 1.0 kHz)
Limits overcurrent of output transistor.
Ensures long battery life.
Ta =
−40°C
to
+85°C
*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
•
Power supply for battery-powered device
•
Power supply for cellular phone
•
Power supply for portable equipment
Packages
•
SOT-89-5
•
SOT-23-5
•
HSNT-6A
Seiko Instruments Inc.
1
Analog electronics
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