CM431A Datasheet, PDF (1/14 Pages) List of Unclassifed Manufacturers – LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR

GENERAL DESCRIPTION
CM431A
LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR
FEATURES
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 V_REF and 18V by using two external resistors.
The CM431A offers low output impedance for improved load
regulation with a typical output impedance of 200mΩ. 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.
PIN CONFIGURATION
TO-92
Front View
SOT-23-3
Top View
3
Initial voltage reference accuracy of 1.0%.
Sink current capability from 1mA to 100mA
Typical output dynamic impedance less than 200mΩ;
Adjustable output voltage from V_REF 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
Voltage Reference
Precision shunt regulator
High current shunt regulator
PWM down converter with reference
Voltage monitor
12 3
1
2
CM431AXCM233 CM431AXCM2R3
Pin 1 REF
CATHODE
Pin 2 CATHODE
REF
Pin 3 ANODE
ANODE
Suffix “X”: Grade “A”, “B”, “C”, “D”, or “E”
SOT-23-5
Top View
5
4
12 3
SOT-89
Top View
12 3
SOP-8
Top View
1
CATHODE ^REF
8
2
NC
NC
7
3
NC
ANODE
6
4
NC
NC
5
2004/08/27
Champion Microelectronic Corporation
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