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RS431 Series
Adjustable Precision Shunt Regulator
RS431 Series Pin Assignment
3
2
3-Lead Plastic
SOT-23
Package Code: N
Pin 1: Reference
Pin 2: Cathode
Pin 3: Anode
Description
The RS431 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 2.5
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 Precise Output Voltage from 2.5V to 36V
•
High Stability under Capacitive Load
•
Low Temperature Deviation: 4.5mV Typical
•
Low Dynamic Output Resistance: 0.2Ω Typical
•
Sink Current Capacity from 1mA to 100 mA
•
Low Output Noise
•
Wide Operating Range of -40 to 125
o
C
•
Low Equivalent Full-range Temperature Coefficient with 20PPM/
o
C Typical
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
TO-92
--
--
Operating Temperature Range (Max.)
Storage Temperature Range
T
opr
T
stg
-40~+125
*
-65~+150
Value
40
-100~+150
0.05~+10
SOT-23
Power Dissipation
P
D
370
770
--
--
o
o
Unit
V
mA
mA
mW
C
C
Operating Conditions
Characteristics
Cathode Voltage
Cathode Current Range (Continuous)
Operating Ambient Temperature Range
Symbol
V
KA
I
K
Min.
V
REF
1
-40
Max.
36
100
125
Unit
V
mA
o
C
DS-RS431-03 October, 2007
www.Orister.com
ORISTER [ ORISTER CORPORATION ]
