LM431BCM3/NOPB Part Information

Details for LM431BCM3/NOPB by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Power Management

Part Description

The LM431 is a 3-terminal adjustable shunt regulator with ensured temperature stability over the entire temperature range of operation. The output voltage may be set at any level greater than 2.5 V (VREF) up to 36 V merely by selecting two external resistors that act as a voltage divided network. Due to the sharp turnon characteristics this device is an excellent replacement for many Zener diode applications. The LM431 is available in space-saving SOIC-8, SOT-23, and TO-92 packages.

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Part Features

  • Available in Space-Saving SOIC-8, SOT-23, and
  • Average Temperature Coefficient 50 ppm/u00b0C
  • Fast Turnon Response
  • Low-Dynamic Output Impedance
  • Low-Output Noise
  • Programmable Output Voltage
  • Temperature Compensated for Operation Over the Full Temperature Range

Part Specifications

Voltage Reference Type Shunt - Adjustable
Product Range LM431 Series
Reference Voltage 2.495V to 36V
Initial Accuracy 0.5%
Temperature Coefficient ± 50ppm/°C
Voltage Reference Case Style SOT-23
No. of Pins 3Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Accuracy % 1%
Base Number 431
Cathode Current Ik Max 100mA
Cathode Voltage Vka Max 37V
IC Temperature Range Commercial
Input Voltage Max 36V
Input Voltage Min 3V
Operating Temperature Range 0°C to +70°C
Operating Voltage Tolerance + 1%
Output Current Max 100mA
Output Voltage 37V
Output Voltage Max 36V
Output Voltage Min 2.5V
Reference Volt Tolerance ±% 1%
Reference Voltage Tolerance 24.95mV
Reference Volts 2.495V
Temperature Coeff Over Temp Range 8mV
Topology Shunt Adjustable
Voltage Regulator Type Positive Adjustable
RoHS Compliant

Alternative Part Descriptions

  • V-Ref Adjustable 2.495-37V 100mA SOT23 | RS Components
  • VOLTAGE REF, SHUNT, 2.495V-36V, SOT-23-3; Voltage Reference Type:Shunt - Adjustable; Product Range:LM431 Series; Reference Voltage:2.495V to 36V; Initial Accuracy:0.5%; Temperature Coefficient:± 50ppm/°C; Voltage Reference Case RoHS Compliant: Yes | Newark Electronics
  • 2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator | Texas Instruments
  • Linear voltage regulator [Texas Instruments] LM431BCM3/NOPB Linear voltage regulator | Distrelec

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