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RS432EATG

Description
Adjustable Precision Shunt Regulator
File Size654KB,10 Pages
ManufacturerOrister
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RS432EATG Overview

Adjustable Precision Shunt Regulator

Page No. : 1/10
RS432 
Adjustable Precision Shunt Regulator
 
General Description 
The  RS432  series  are  three‐terminal  adjustable  regulators  with  guaranteed  thermal  stability  over  applicable 
temperature  ranges.  The  output  voltage  may  be  set  to  any  value  between  V
REF
 
(approximately  1.24  or  1.25 
volts) and 18 volts with two external resistors. These devices have a typical dynamic output impedance of 0.2Ω. 
Active output circuitry provides a very sharp turn‐on characteristic, making these devices excellent replacement 
for zener diodes in many applications. 
Features 
Programmable Precise Output Voltage from 1.24V or 1.25V to 16V 
High Stability under Capacitive Load 
Low Dynamic Output Resistance: 0.2Ω Typical 
Fast turn on response 
 
Low Output Noise 
Wide Operating Range of ‐40 to 125
o
Low Equivalent Full‐range Temperature Coefficient with 50ppm/
o
C Typical 
SOT‐23, SOT‐89 and TO‐92 Packages 
RoHS Compliant and 100% Lead (Pb)‐Freeand Green (Halogen Free with CommercialStandard)
 
Application Circuits 
 
Fig 1. V
K
=V
REF
 
I
I
IN
I
REF
I
K
V
REF
R
2
V
REF
V
K
Fig 2. V
K
>V
REF
   
I
I
IN
R
1
V
K
Fig 3. Off‐State Current 
IN
V
K
I
REF
I
K
I
OFF
Note: V
K
=V
REF
(1+R
1
/R
2
)+I
REF
xR
1
 
 
 
 
 
 
 
This  integrated  circuit  can  be  damaged  by  ESD.  Orister  Corporation  recommends  that  all  integrated  circuits  be  handled  with 
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. 
 
ESD  damage  can  range  from  subtle  performance  degradation  to  complete  device  failure.  Precision  integrated  circuits  may  be  more 
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 
 
DS‐RS432‐07 
   
September, 2009 
www.Orister.com
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