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CM431AACM89 参数 Datasheet PDF下载

CM431AACM89图片预览
型号: CM431AACM89
PDF下载: 下载PDF文件 查看货源
内容描述: 低电压可调并联稳压器 [LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR]
分类和应用: 稳压器
文件页数/大小: 14 页 / 323 K
品牌: CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
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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