ACE431S
Technology
Description
Adjustable Precision Shunt Regulator
The ACE431S 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 VREF
(approximately 2.5 V) to 18V 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 ACE431S is characterized for operation from -40oC to 85oC, and five package options (SOT-23-3,
SOT-23-5, SOP-8, TO-92 and SOT-89-3) allow the designer the opportunity to select the proper package
for their applications.
Features
●
Low voltage operation (2.5V)
●
Adjustable output voltage V
0
=V
REF
to 18V
●
Wide operating current range 150μA to 80mA
●
Low dynamic output impedance 0.08Ω (Typ)
●
Trimmed bandgap design up to +0.5%
●
ESD rating is 6KV (Per MIL-STD-883D)
●
ROHS Compliant and 100% Lead (Pb)-Free
Application
●
●
●
●
●
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Linear Regulators
Adjustable Supplies
Switching Power Supplies
Battery Operated Computers
Instrumentation
Computer Disk Drives
Absolute Maximum Ratings
Parameter
Symbol
Cathode Voltage
V
KA
Continuous Cathode Current
I
KA
Reference Current
I
REF
Operating Junction Temperature Range
T
J
Storage Temperature Range
T
STG
Max
Unit
18
V
80
mA
1
mA
O
-40 to 85
C
O
-65 to 150
C
SOT-89-3 120
SOT-23-3 230
SOT-23-5 230
O
C/W
SOP-8 150
TO-92 220
Thermal Resistance
θ
JA
VER 1.2
1
ACE [ ACE TECHNOLOGY CO., LTD. ]
