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零件编号 | KA431S | ||
描述 | Programmable Shunt Regulator | ||
制造商 | Fairchild | ||
LOGO | |||
1 Page
July 2013
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
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 VREF
(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
3
12
MF- 1.Cathode 2. Ref 3. Anode
MF2- 1. Ref 2. Cathode 3. Anode
Ordering Information
Part Number
KA431SMFTF
KA431SMF2TF
KA431SAMFTF
KA431SAMF2TF
KA431SLMFTF
KA431SLMF2TF
Operating
Temperature
Range
-25 to +85°C
Output Voltage
Tolerance
2%
1%
0.5%
Top Mark
43A
43D
43B
43E
43C
43F
Package
SOT-23F 3L
Packing Method
Tape and Reel
© 2011 Fairchild Semiconductor Corporation
KA431S / KA431SA / KA431SL Rev. 1.1.1
1
www.fairchildsemi.com
Typical Application
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KA431S
KA431S
KA431S
Figure 15. Shunt Regulator
Figure 16. Output Control for Three- Figure 17. High Current Shunt Regu-
Terminal Fixed Regulator
lator
KA431S
Figure 18. Current Limit or Current Source
KA431S
Figure 19. Constant-Current Sink
© 2011 Fairchild Semiconductor Corporation
KA431S / KA431SA / KA431SL Rev. 1.1.1
8
www.fairchildsemi.com
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页数 | 10 页 | ||
下载 | [ KA431S.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
KA431 | Programmable Shunt Regulator | Fairchild |
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