LM431BIZX Datasheet, PDF (1/11 Pages) Fairchild Semiconductor – Programmable Shunt Regulator

June 2013
LM431A / LM431B / LM431C
Programmable Shunt Regulator
Features
• Programmable Output Voltage to 36 V
• Low Dynamic Output Impedance: 0.2 Ω (Typical)
• Sink Current Capability: 1.0 to 100 mA
• Equivalent Full-Range Temperature Coefficient of
50 ppm/°C (Typical)
• Temperature Compensated for Operation Over Full
Rated Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response
Description
The LM431A / LM431B / LM431C are three-terminal out-
put adjustable regulators with thermal stability over the
full operating temperature range. The output voltage can
be set to any value between V_REF (approximately 2.5 V)
and 36 V with two external resistors. These devices have
a typical dynamic output impedance of 0.2 Ω. Active out-
put circuit provides a sharp turn-on characteristic, mak-
ing these devices excellent replacements for Zener
diodes in many applications.
TO-92
1
1. Ref 2. Anode 3. Cathode
8-SOIC
Ordering Information
1
1.Cathode 2.3.6.7.Anode
4.5.NC 8.Ref
Part Number
LM431CCZ
LM431CCMX
LM431BCZX
LM431BCZXA
LM431BCMX
LM431ACZ
LM431ACZX
LM431ACMX
LM431CIMX
LM431BIZX
LM431AIZ
LM431AIMX
Operating
Temperature
Range
Output Voltage
Tolerance
0.5%
-25 ~ +85^°C
1%
-40 ~ +85^°C
2%
0.5%
1%
2%
Top Mark
LM431CCZ
LM431CCM
LM431BCZ
LM431BCZ
LM431BCM
LM431ACZ
LM431ACZ
LM431ACM
LM431CIM
LM431BIZ
LM431AIZ
LM431AIM
Package
TO-92
8-SOIC
TO-92
TO-92
8-SOIC
TO-92
TO-92
8-SOIC
8-SOIC
TO-92
TO-92
8-SOIC
Packing Method
Bulk
Tape and Reel
Tape and Reel
Ammo
Tape and Reel
Bulk
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Bulk
Tape and Reel
© 2003 Fairchild Semiconductor Corporation
LM431A / LM431B / LM431C Rev. 1.2.0
1
www.fairchildsemi.com