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CM431AGACM89TR

Description
Regulator
CategoryPower/power management    The power supply circuit   
File Size340KB,14 Pages
ManufacturerChampion Microelectronic Corp.
Power control management IC chips are the primary key to improving the power saving performance of electronic facilities and products. Backed by the most advanced technology in Silicon Valley, U.S., Hongguan Electronics has invested in AC-DC analog power IC professional design for many years, and has always adhered to the concept of implementing energy conservation and carbon reduction, striving for a green world, so that energy saving and power saving performance can be fully realized in people's lives around the world.
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CM431AGACM89TR Overview

Regulator

CM431AGACM89TR Parametric

Parameter NameAttribute value
MakerChampion Microelectronic Corp.
package instruction,
Reach Compliance Codeunknown

CM431AGACM89TR Preview

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CM431A
L
OW
V
OLTAGE
A
DJUSTABLE
S
HUNT
R
EGULATOR
GENERAL DESCRIPTION
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.
Voltage Reference
Precision shunt regulator
High current shunt regulator
PWM down converter with reference
Voltage monitor
FEATURES
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/
O
C
APPLICATIONS
PIN CONFIGURATION
TO-92
Front View
CATHODE
SOT-23-3
Top View
3
REF
ANODE
CM431AXCM233 CM431AXCM2R3
Pin 1
Pin 2
Pin 3
1
2
REF
CATHODE
ANODE
CATHODE
REF
ANODE
Suffix “X”: Grade “A”, “B”, “C”, “D”, or “E”
1
2
3
SOT-23-5
Top View
5
4
SOT-89
Top View
1
SOP-8
Top View
C OE
ATH D
N
C
N
C
N
C
R
EF
N
C
AN D
OE
N
C
8
7
6
5
CATHODE REF
CATHODE
ANODE
REF
ANODE
2
3
4
NC
NC
1
2
3
1
2
3
2006/10/11 Rev1.2
Champion Microelectronic Corporation
Page 1
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