Pb Free Plating Product
APEC
DESCRIPTION
ADJUSTABLE PRECISION SHUNT
REGULATOR
AP431
FEATURES
Low voltage operation (2.5V)
Adjustable output voltage V
0
=V
REF
to 18V
Wide operating current range 0.4mA to 100mA
Low dynamic output impedance 0.5Ω max.
ESD rating is 5.5KV(Per MIL-STD-883D).
Halogen Free Product
The AP431 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 18V with two external
resistors (see application circuit). This device has a typical
output impedance of 0.2Ω. Active output circuitry provides a
very sharp turn on characteristic, making this device excel lent
replacement for Zener diodes in many applications.
The AP431 is characterized for operation from 0 C to 105 C,
and four package options (SOT-23, SOT-89, SO-8 and TO-92)
allow the designer the opportunity to select the proper package
for their application.
o
o
APPLICATIONS
Linear Regulators
Adjustable Supplies
Switching Power Supplies
Battery Operated Computers
Instrumentation
Computer Disk Drives
PIN CONFIGURATIONS
SOT-23 Lead (Top View)
BLOCK DIAGRAM
Cathode
2
Cathode
Ref
Anode
3
+
1
Reference
-
Vref
SOT-89 Lead (Top View)
Anode
3
2
1
CATHODE
ANODE
REF
SO-8 (Top View)
SYMBOL DIAGRAM
Cathode
Cathode
Anode
Anode
NC
1
2
3
4
8
7
6
5
Reference
Anode
Anode
NC
TO-92 (Top View)
3
2
1
Cathode
Anode
Reference
Ref
Anode
ADVANCED POWER ELECTRONICS CORP.
1
A-POWER [ ADVANCED POWER ELECTRONICS CORP. ]
