Datasheet ON Semiconductor LM431SAI — 数据表

DATA SHEET
www.onsemi.com Programmable Shunt
Regulator
LM431SA, LM431SB,
LM431SC 1 SOT−89
CASE 528AH Description The LM431SA / LM431SB / LM431SC are three−terminal the
output adjustable regulators with thermal stability over operating
temperature range. The output voltage can be set any value between
VREF (approximately 2.5 V) and 36 V with two external resistors.
These devices have a typical dynamic output impedance of 0.2 W.
Active output circuit provides a sharp turn−on characteristic, making
these devices excellent replacement for zener diodes in many
applications. 3 •
•
•
• 2 1 1. Cathode
2. Ref
3. Anode SOT−23FL
CASE 318AB
3 Features •
•
•
• 1. Ref …