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CM431ABCS Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

Part # CM431ABCS
Description  LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR
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CM431A
LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR
2004/08/27
Champion Microelectronic Corporation
Page 1
GENERAL DESCRIPTION
FEATURES
Initial voltage reference accuracy of 1.0%.
Sink current capability from 1mA to 100mA
Typical output dynamic impedance less than 200m
Ω;
Adjustable output voltage from VREF to 18V
Available in SOT-23, SOT-89, TO-92, & SOP-8
Low output noise
Typical equivalent full range temperature coefficient of
30ppm/
OC
APPLICATIONS
The CM431A is a three-terminal adjustable shunt voltage
regulator with specified thermal stability and pin-to-pin compatible
with the earlier 431 series. The output voltage can be adjusted to
any value between VREF and 18V by using two external resistors.
The CM431A offers low output impedance for improved load
regulation with a typical output impedance of 200m
Ω. Because
of the active output circuitry, the CM431A can replace the zener
diodes in applications such as switching power supplies, OVP
crowbar circuits, references for A/D, D/A converters with
improved turn-on characteristics.
Voltage Reference
Precision shunt regulator
High current shunt regulator
PWM down converter with reference
Voltage monitor
PIN CONFIGURATION
TO-92
Front View
1
2
3
SOT-23-3
Top View
1
3
2
SOT-23-5
Top View
1
5
3
2
4
SOT-89
Top View
1
2
3
SOP-8
Top View
1
2
3
4
8
7
6
5
CATHODE
NC
NC
NC
REF
NC
ANODE
NC
CM431AXCM233 CM431AXCM2R3
Pin 1
REF
CATHODE
Pin 2
CATHODE
REF
Pin 3
ANODE
ANODE
Suffix “X”: Grade “A”, “B”, “C”, “D”, or “E”


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