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KA431S / KA431SA / KA431SL — Programmable Shunt Regulator
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA431S / KA431SA / KA431SL Rev. 6.7
March 2015
KA431S / KA431SA / KA431SL
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
Ordering Information
Part Number
Operating
Temperature
Range
Output Voltage
Tolerance
Top Mark Package Packing Method
KA431SMFTF
-25 to +85°C
2%
43A
SOT-23F 3L Tape and Reel
KA431SMF2TF 43D
KA431SAMFTF
1%
43B
KA431SAMF2TF 43E
KA431SLMFTF
0.5%
43C
KA431SLMF2TF 43F
Description
The KA431S / KA431SA / KA431SL are three-terminal
adjustable regulator series with a guaranteed thermal
stability over the operating temperature range. The out-
put voltage can be set to any value between V
REF
(approximately 2.5 V) and 36 V with two external resis-
tors. 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 replacement for zener diodes in many applica-
tions.
SOT-23F
1
2
3
MF- 1.Cathode 2. Ref 3. Anode
MF2- 1. Ref 2. Cathode 3. Anode
Verzeichnis
- ・ Abmessungen des Paketumrisses on Seite 8
- ・ Teilenummerierungssystem on Seite 1
- ・ Markierungsinformationen on Seite 2
- ・ Blockdiagramm on Seite 2
- ・ Typisches Anwendungsschaltbild on Seite 5
- ・ Technische Daten on Seite 3 Seite 9
- ・ Anwendungsbereich on Seite 5
- ・ Elektrische Spezifikation on Seite 4 Seite 6 Seite 7
