SP431
High Voltage Adjustable Precision Shunt Regulators
DESCRIPTION
The SP431 is high-voltage three-terminal
adjustable voltage references, with specified
thermal stability over applicable industrial and
commercial temperature ranges. Output voltage
can be set to any value between V
REF
(2.5V) and
36V with two external resistors. These devices
have a typical output impedance of 0.25Ω. Active
output circuitry provides a very sharp turn-on
characteristic, making the SP431 excellent
replacements for low-voltage Zener diodes in
many applications, including onboard regulation
and adjustable power supplies.
APPLICATIONS
Battery Power Equipment
Linear Regulators
Switch Power Supply
Cellular Phone
Digital Cameras
Computer Disk Drivers
Instrumentation
FEATURES
Low Output Noise
Adjustable Output Voltage, V
O
= Vref to
36 V
Low Operational Cathode Current
0.25Ω Typical Output Impedance
( SOT-23 )
PIN CONFIGURATION
( SOT-89 )
( TO-92 )
PART MARKING
( SOT-23 )
( SOT-89 )
( TO-92 )
2013/03/13
Ver.4
Page 2
SYNC-POWER [ SYNC POWER CROP. ]
