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LM431B: Adjustable/2.5 V, 1% Tolerance Shunt Regulator
The LM431A / LM431B / LM431C are three terminal output adjustable regulators with thermal stability over the full operating temperature range. The output voltage can be set to any value between VREF (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 replacements for Zener diodes in many applications.
| LM431B Datasheet |
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
| Product | Product & Eco Status | Unit Price/1K Order | Packing Method Convention | Package Marking Convention* |
|---|---|---|---|---|
| LM431BCMX | Full Production ROHS Compliant as of 27-Feb-2006 China RoHS | $0.1606 | SO 8L NB
-
1.75 x 3.9 x 4.9mm,
TAPE REEL
| Line 1$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K
Line 2LM43 |
| LM431BCZX | Full Production ROHS Compliant as of 27-Feb-2006 China RoHS | $0.0509 | TO-92 3L
-
4.19 x 5.2 x 21.77mm,
TAPE REEL
| Line 1$Y (Fairchild logo) &Z (Plant Code) &3 (3-Digit Date Code)
Line 2LM431 |
| LM431BCZXA | Full Production ROHS Compliant as of 27-Feb-2006 China RoHS | $0.0509 | TO-92 3L
-
4.19 x 5.2 x 21.77mm,
AMMO
| Line 1$Y (Fairchild logo) &Z (Plant Code) &3 (3-Digit Date Code)
Line 2LM431 |
| LM431BIZX | Full Production ROHS Compliant as of 27-Feb-2006 China RoHS | $0.0509 | TO-92 3L
-
4.19 x 5.2 x 21.77mm,
TAPE REEL
| Line 1$Y (Fairchild logo) &Z (Plant Code) &3 (3-Digit Date Code)
Line 2LM431 |
- SO 8L NB Drawing Last Update: Nov 2015
- MO8A SON8, Packing Drawing Last Update: Oct 2015
- SOIC 8L TR packing drawing Last Update: May 2013
- SOIC 8L PACKING DRAWING Last Update: May 2013
- SOIC 8L PACKING DRAWING Last Update: May 2013
- SOIC Tape And Reel Packing Drawing Last Update: Jun 2016
- TO-92 3L Drawing Last Update: Oct 2015
- TO92-3L, PACKING DRAWING Last Update: May 2014
