HA17431H Datasheet, PDF (1/7 Pages) Hitachi Semiconductor – Shunt Regulator

HA17431H Series
Shunt Regulator
REJ03D0679-0200
(Previous: ADE-204-070A)
Rev.2.00
Jun 15, 2005
Description
The HA17431H series is temperature-compensated variable shunt regulators. The main application of these products is
in voltage regulators that provide a variable output voltage. The on-chip high-precision reference voltage source can
provide ±1% accuracy, which have a V_KA max of 36 volts.
Features
• The reference voltage provide 2.500 V ±1% at Ta = 25°C
• The reference voltage has a low temperature coefficient
• The MPAK-5V (5 pin), MPAKV (3 pin) and UPAKV miniature packages are optimal for use on high mounting
density circuit boards
Block Diagram
K
REF
+
−
2.500 V
A
Application Circuit Example
Switching power supply secondary-side error amplification circuit
Vout
R
+
R₁
–
K
REF
A
R₂
HA17431H Series
GND
Rev.2.00 Jun 15, 2005 page 1 of 6