KA431AZBU Datasheet, PDF (1/11 Pages) Fairchild Semiconductor – Programmable Shunt Regulator

July 2013
KA431 / KA431A / KA431L
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 KA431 / KA431A / KA431L are three-terminal
adjustable regulators with a guaranteed thermal stability
over the operating temperature range. The output volt-
age can be set to any value between V_REF (approxi-
mately 2.5 V) and 36 V with two external resistors.
These devices have a typical dynamic output impedance
of 0.2 Ω. Active output circuitry provides a sharp turn-on
characteristic, making these devices excellent replace-
ments for Zener diodes in many applications.
TO-92
1
1. Ref 2. Anode 3. Cathode
8-SOIC
1
1.Cathode 2.3.6.7.Anode
4.5.NC 8.Ref
Ordering Information
Part Number
KA431DTF
KA431ADTF
KA431AZBU
KA431AZTA
KA431LZTA
Operating
Temperature
Range
-25 ~ +85°C
Output Voltage
Tolerance
2%
1%
0.5%
Top Mark Package Packing Method
431
431A
KA431AZ
KA431AZ
KA431LZ
8-SOIC
8-SOIC
TO-92
TO-92
TO-92
Tape and Reel
Tape and Reel
Bulk
Ammo
Ammo
© 2004 Fairchild Semiconductor Corporation
KA431 / KA431A / KA431L Rev. 1.2.1
1
www.fairchildsemi.com