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LM431SA / LM431SB / LM431SC — Programmable Shunt Regulator
© 2004 Fairchild Semiconductor Corporation www.fairchildsemi.com
LM431SA / LM431SB / LM431SC Rev. 1.3.2 1
August 2013
LM431SA / LM431SB / LM431SC
Programmable Shunt Regulator
Features
• Programmable Output Voltage to 36 V
• Low Dynamic Output Impedance: 0.2 Ω (Typical)
• Sink Current Capability of 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
Product Number
Output Voltage
Tolerance
Operating
Temperature
Top Mark Package Packing Method
LM431SACMFX
2%
-25 to +85°C
43A SOT-23F 3L
Tape and Reel
LM431SACM3X 43L SOT-23 3L
LM431SACM32X 43G SOT-23 3L
LM431SBCMLX
1%
43B SOT-89 3L
LM431SBCMFX 43B SOT-23F 3L
LM431SBCM3X 43M SOT-23 3L
LM431SBCM32X 43H SOT-23 3L
LM431SCCMLX
0.5%
43C SOT-89 3L
LM431SCCMFX 43C SOT-23F 3L
LM431SCCM3X 43N SOT-23 3L
LM431SCCM32X 43J SOT-23 3L
LM431SAIMFX 2% -40 to +85°C 43AI SOT-23F 3L
1. Ref 2. Anode 3. Cathode
1
SOT-89
SOT-23F
1
2
3
1. Cathode 2. Ref 3. Anode
SOT-23
1
2
3
M32 - 1. Ref 2. Cathode 3. Anode
M3 - 1. Cathode 2. Ref 3. Anode
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 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
output circuit provides a sharp turn-on characteristic,
making these devices excellent replacement for Zener
diodes in many applications.
Verzeichnis
- ・ Abmessungen des Paketumrisses on Seite 9 Seite 10 Seite 11
- ・ Paket-Footprint-Pad-Layout on Seite 11
- ・ Teilenummerierungssystem on Seite 1
- ・ Blockdiagramm on Seite 2
- ・ Typisches Anwendungsschaltbild on Seite 8
- ・ Technische Daten on Seite 2 Seite 12
- ・ Elektrische Spezifikation on Seite 3 Seite 4 Seite 6 Seite 7
