CM431
LOW VOLTAGE ADJUSTABLE SHUNT REGULATOR
TYPICAL APPLICATION
BLOCK DIAGRAM
VO = 5V
V+
CATHODE
Rb
R1
27.5K
0.1%
+
REF
Note: Rb should
provide cathode
current ≥ 1mA
-
R2
27.5K
0.1%
VREF
ANODE
5V Precision Regulator
ORDERING INFORMATION
PACKAGE
TOLERANCE
0.5%
0.7%
1.0%
T/R Quantity
TR=3K
SOT-23（1）
SOT-23（1）
SOT-89（1）
TO-92（2）
SOP-8
CM431ACM233
CM431ACM2R3
CM431ACM89
CM431ACN
CM431DCM233
CM431DCM2R3
CM431DCM89
CM431DCN
CM431BCM233
CM431BCM2R3
CM431BCM89
CM431BCN
TR=3K
TR=1K
TA=2K
CM431ACS
CM431DCS
CM431BCS
SOT-23（1）
SOT-23（1）
SOT-89（1）
TO-92（2）
SOP-8
CM431GACM233*
CM431GACM2R3*
CM431GACM89*
CM431GACN*
CM431GACS*
CM431GDCM233*
CM431GDCM2R3*
CM431GDCM89*
CM431GDCN*
CM431GDCS*
CM431GBCM233*
CM431GBCM2R3*
CM431GBCM89*
CM431GBCN*
CM431GBCS*
TR=3K
TR=3K
TR=1K
TA=2K
Notes：
（1） Add suffix ″TR″for Tape & Reel.
（2） Add suffix ″TA″for Tape Ammo.
（3） *Note: Add suffix “G” for Pb Free Product
2006/10/11 Rev.1.4
Champion Microelectronic Corporation
Page 2
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
