LM431B: Adjustable/2.5 V, 1% Tolerance Shunt Regulator

Description: The LM431A / LM431B / LM431C are three terminal ou...
  • 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.
  • 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
  • Applications
  • This product is general usage and suitable for many different applications.
  • Technical Documentation & Design Resources
    Availability and Samples
    LM431BCMX
  • Status: Active
  • Compliance: Pb-free 
  • Description: Adjustable/2.5 V, 1% Tolerance Shunt Regulator
  • Package Type: SOIC-8
  • Package Case Outline: 751EB
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Mouser:>1K
  • ON Semiconductor:3,000
  • LM431BCZX
  • Status: Active
  • Compliance: Pb-free 
  • Description: Adjustable/2.5 V, 1% Tolerance Shunt Regulator
  • Package Type: TO-92-3 LF
  • Package Case Outline: 135AR
  • MSL: NA
  • Container Type: REEL
  • Container Qty: 2000
  • Inventory

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • Digikey:>1K
  • Mouser:>1K
  • LM431BCZXA
  • Status: Active
  • Compliance: Pb-free 
  • Description: Adjustable/2.5 V, 1% Tolerance Shunt Regulator
  • Package Type: TO-92-3 LF
  • Package Case Outline: 135AR
  • MSL: NA
  • Container Type: FNFLD
  • Container Qty: 2000
  • Inventory

  • Market Leadtime (weeks):13 to 16
  • Arrow:0
  • Mouser:>1K
  • LM431BIZX
  • Status: Active
  • Compliance: Pb-free 
  • Description: Adjustable/2.5 V, 1% Tolerance Shunt Regulator
  • Package Type: TO-92-3 LF
  • Package Case Outline: 135AR
  • MSL: NA
  • Container Type: REEL
  • Container Qty: 2000
  • Specifications
  • Type: Adjustable 
  • V(BR) Typ (V): 2.5 
  • Tolerance (%):
  • IQ Typ (mA):
  • IR Min (mA): 0.0015 
  • VF Max (V): 36 
  • TA Min (°C): -25  -40 
  • TA Max (°C): 85 
  • Package Type: SOIC-8  TO-92-3 LF 
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