RS432 Datasheet, PDF (1/10 Pages) Orister Corporation – Adjustable Precision Shunt Regulator

RS432
Adjustable Precision Shunt Regulator
Page No. : 1/10
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^oC
● Low Equivalent Full‐range Temperature Coefficient with 50ppm/^oC 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
V_REF
V_K
I_K
Fig 2. V_K>V_REF
I_I
IN
R_{1 IREF}
R₂
V_REF
V_K
I_K
Fig 3. Off‐State Current
IN
V_K
I_OFF
Note: V_K=V_REF (1+R₁/R₂)+I_REFxR₁
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
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