SE431D_14 Datasheet, PDF (1/8 Pages) Seaward Electronics Inc. – Adjustable Precision Shunt Regulator

Description
The SE431D is a low voltage three terminal
adjustable shunt regulator with a guaranteed
thermal stability over applicable temperature
ranges. The output voltage can be set to any value
between V_REF (approximately 2.5 V) to 36V with two
external resistors. This device has a typical output
impedance of 0.08Ω. Active output circuitry
provides a very sharp turn on characteristic, making
this device excellent replacement for Zener diodes
in many applications.
The SE431D is characterized for operation
from -40^oC to 125^oC, 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
 Low voltage operation (2.5V)
 Wide operating current range 150µA to 150 mA
 Low dynamic output impedance 0.08(Typ.).
 Trimmed bandgap design up to + 0.5%.
 Electrostatic discharge voltage 2.5kV.
 RoHS Compliant and 100% Lead (Pb)-Free.
Application
 Linear Regulators
 Adjustable Supplies
 Switching Power Supplies
 Battery Operated Computers
 Instrumentation
 Computer Disk Drives
Block Diagram
Cathode
Ref
+
-
Vref
Anode
Symbol Diagram
Cathode
Ref
Anode
Revision 7/30/2014
All contents are subject to change without prior notice.
© Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 1