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Seiko Instruments Electronic Components Datasheet

S-816 Datasheet

CMOS VOLTAGE REGULATOR

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S-816 pdf
S-816 Series
www.sii-ic.com
© SII Semiconductor Corporation, 1996-2014
EXTERNAL TRANSISTOR TYPE
CMOS VOLTAGE REGULATOR
Rev.6.1_01
The S-816 Series, developed using the CMOS technology, is an external transistor type positive voltage
regulator which incorporates an overcurrent protection circuit and an ON/OFF circuit. A low drop-out type
regulator with an output current ranging from several hundreds of mA to 1 A can be configured with the PNP
transistor driven by this IC.
Despite the features of the S-816 Series, which is low current consumption, the improvement in its transient
response characteristics of the IC with a newly deviced phase compensation circuit made it possible to employ
the products of the S-816 Series even in applications where heavy input variation or load variation is
experienced.
The S-816 Series regulator serves as an ideal power supply unit for portable devices when coupled with the
small SOT-23-5 package, providing numerous outstanding features, including low current consumption. Since
the S-816 Series can accommodate an input voltage of up to 16 V, it is also suitable when operating via an AC
adapter.
Features
Output voltage:
2.5 V to 6.0 V, selectable in 0.1 V step
Input voltage:
16 V max.
Output voltage accuracy:
± 2.0%
Current consumption:
During operation:
30 μA typ., 40 μA max.
During power-off:
1 μA max.
Built-in overcurrent (base current) protection circuit
Built-in ON/OFF circuit:
Ensures long battery life.
Built-in current source (10 μA):
No need for a base-emitter resistance.
Operation temperature range:
Ta =40°C to +85°C
Lead-free, Sn 100%, halogen-free*1
*1. Refer to “Product Name Structure” for details.
Applications
Power supply for on-board such as battery device for portable telephone, electronic notebook, PDA
Constant voltage power supply for camera, video equipment and portable communication equipment
Power supply for CPU
Post-regulator for switching regulator
Main regulator in multiple-power supply system
Package
SOT-23-5
1


Seiko Instruments Electronic Components Datasheet

S-816 Datasheet

CMOS VOLTAGE REGULATOR

No Preview Available !

S-816 pdf
EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR
S-816 Series
Rev.6.1_01
Block Diagram
+
ON/OFF
VIN EXT
Current Source
Pull-Up
Reisitance
Overcurrent
Protection
Circuit
+Error Sink
Vref
Amplifier
Driver
VOUT
+
VSS
Remark 1. To ensure you power cutoff of the external transistor when the device is powered down, the
EXT output is pulled up to VIN by a pull-up resistance (approx. 0.5 MΩ) inside the IC.
2. The diode inside the IC is a parasitic diode.
Figure 1
2


Part Number S-816
Description CMOS VOLTAGE REGULATOR
Maker Seiko
Total Page 24 Pages
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