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RL431 Series
Adjustable Shunt Regulator
RL431 Series Pin Assignment
3
2
3-Lead Plastic
SOT-23
Package Code: N
Pin 1: Reference
Pin 2: Cathode
Pin 3: Anode
Description
The RL431 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 2.495
volts) and 36 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.
1
12
3
3-Lead Plastic
TO-92
Package Code: A
Pin 1: Reference
Pin 2: Anode
Pin 3: Cathode
Features
•
Programmable output voltage
•
Temperature coefficient is 50ppm/
o
C typical
•
Temperature compensated for operation over full temperature range
•
Low output noise voltage
•
Fast turn on response
Absolute Maximum Ratings
(Operating temperature range applies unless otherwise specified)
Characteristics
Cathode Voltage
Cathode Current Range (Continuous)
Reference Input Current Range
Symbol
V
KA
I
K
I
REF
Value
36
-100~+150
0.05~+10
SOT-23
Power Dissipation
P
D
TO-92
Operating Temperature Range (Max.)
Storage Temperature Range
*. RL431CN, RL431CA
T
opr
T
stg
-40~+120
*
-65~+150
770
o
o
Unit
V
mA
mA
280
mW
C
C
Operating Conditions
Characteristics
Cathode Voltage
Cathode Current Range (Continuous)
Symbol
V
KA
I
K
Min.
V
REF
1
Max.
36
100
Unit
V
mA
DS-RS431L-01 October, 2006
www.Orister.com
ORISTER [ ORISTER CORPORATION ]
