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Seaward - ADJUSTABLE PRECISION SHUNT REGULATOR

Numéro de référence SE431
Description ADJUSTABLE PRECISION SHUNT REGULATOR
Fabricant Seaward 
Logo Seaward 





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SE431 fiche technique
SEAWARD
ELECTRONICS
Adjustable Precision
Shunt Regulator
SE431
Description
The SE431 is a low voltage three terminal
adjustable shunt regulator with a guaranteed thermal
www.datasheet4u.com
stability over applicable temperature ranges. The output
voltage can be set to any value between VREF
(approximately 2.5 V) to 18V with two external resistors.
This device has a typical output impedance of 0.2.
Active output circuitry provides a very sharp turn on
characteristic, making this device excellent replacement
for Zener diodes in many applications.
The SE431 is characterized for operation from 0oC
to 105oC, and five package options (SOT-23-3, SOT-23-5,
SOP-8, TO-92 and SOT-89) allow the designer the
opportunity to select the proper package for their
applications.
Features
¾ Low voltage operation (2.5V)
¾ Adjustable output voltage V0 = VREF to 18V
¾ Wide operating current range 120µA to 100mA
¾ Low dynamic output impedance 0.2(Typ.).
¾ Trimmed bandgap design up to + 0.5%.
¾ ESD rating is 5.5KV(Per MIL-STD-883D).
¾ Available in Lead Free Packages.
Application
¾ Linear Regulators
¾ Adjustable Supplies
¾ Switching Power Supplies
¾ Battery Operated Computers
¾ Instrumentation
¾ Computer Disk Drives
Block Diagram
Cathode
Ref
+
-
Symbol Diagram
Cathode
Vref Ref
Anode
Anode
All contents are subject to change without prior notice.
© Seaward Electronics, Inc., 2005. • www.seawardinc.com • Page 1

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