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SOT-23-3
Integrated Circuits (ICs)

LM431ACM3/NOPB

Active
Texas Instruments

2%, 1%, OR 0.5% ACCURACY, ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

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Search across all available documentation for this part.

DocumentsPrecision Output Current Limiting Using Average Current Monitor FeatureLow-cost flyback solutions for 10-mW standby power+5
SOT-23-3
Integrated Circuits (ICs)

LM431ACM3/NOPB

Active
Texas Instruments

2%, 1%, OR 0.5% ACCURACY, ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

Deep-Dive with AI

DocumentsPrecision Output Current Limiting Using Average Current Monitor FeatureLow-cost flyback solutions for 10-mW standby power+5

Technical Specifications

Parameters and characteristics for this part

SpecificationLM431ACM3/NOPB
Current - Cathode [custom]1 mA
Current - Output100 mA
Mounting TypeSurface Mount
Operating Temperature [Max]70 °C
Operating Temperature [Min]0 °C
Output TypeAdjustable
Package / CaseSOT-23-3, TO-236-3, SC-59
Reference TypeShunt
Supplier Device PackageSOT-23-3
Temperature Coefficient50 ppm/°C
Tolerance2.2 %
Voltage - Output (Max) [Max]37 V
Voltage - Output (Min/Fixed) [Min]2.495 V

LM431 Series

2%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator

PartCurrent - OutputVoltage - Output (Max) [Max]Output TypeVoltage - Output (Min/Fixed) [Min]Reference TypeSupplier Device PackagePackage / CaseMounting TypeTemperature CoefficientCurrent - Cathode [custom]Operating Temperature [Max]Operating Temperature [Min]ToleranceVoltage - Output (Min/Fixed)Package / Case [y]Package / Case [x]Tolerance [Min]Tolerance [Max]
SOT-23 (DBZ)
Texas Instruments
LM431BCM3/NOPB
100 mA
37 V
Adjustable
2.495 V
Shunt
SOT-23-3
SC-59
SOT-23-3
TO-236-3
Surface Mount
50 ppm/°C
1 mA
70 °C
0 °C
1 %
SOIC (D)
Texas Instruments
LM431CCM/NOPB
100 mA
37 V
Adjustable
Shunt
8-SOIC
8-SOIC
Surface Mount
50 ppm/°C
1 mA
70 °C
0 °C
2.5 V
3.9 mm
0.154 in
-1 %
0.4 %
TO-92-3(StandardBody),TO-226_straightlead
Texas Instruments
LM431ACZ/NOPB
100 mA
37 V
Adjustable
2.495 V
Shunt
TO-92-3
TO-226-3
TO-92-3
Through Hole
50 ppm/°C
1 mA
70 °C
0 °C
2.2 %
SOT-23-3
Texas Instruments
LM431ACM3/NOPB
100 mA
37 V
Adjustable
2.495 V
Shunt
SOT-23-3
SC-59
SOT-23-3
TO-236-3
Surface Mount
50 ppm/°C
1 mA
70 °C
0 °C
2.2 %
TLV2462AMDREP
Texas Instruments
LM431BIMX/NOPB
100 mA
37 V
Adjustable
2.495 V
Shunt
8-SOIC
8-SOIC
Surface Mount
50 ppm/°C
1 mA
85 °C
-40 °C
1 %
3.9 mm
0.154 in
TO-92-3(StandardBody),TO-226_bentlead
Texas Instruments
LM431CIZ/LFT1
100 mA
37 V
Adjustable
Shunt
TO-92-3
TO-226-3
TO-92-3
Through Hole
50 ppm/°C
1 mA
85 °C
-40 °C
2.5 V
-1 %
0.4 %
TO-92-3(StandardBody),TO-226_bentlead
Texas Instruments
LM431ACZ/LFT3
100 mA
37 V
Adjustable
2.495 V
Shunt
TO-92-3
TO-226-3
TO-92-3
Through Hole
50 ppm/°C
1 mA
70 °C
0 °C
2.2 %
TO-92 PKG
Texas Instruments
LM431BIZ/NOPB
100 mA
37 V
Adjustable
2.495 V
Shunt
TO-92-3
TO-226-3
TO-92-3
Through Hole
50 ppm/°C
1 mA
85 °C
-40 °C
1 %
SOT-23-3
Texas Instruments
LM431AIM3
100 mA
37 V
Adjustable
2.495 V
Shunt
SOT-23-3
SC-59
SOT-23-3
TO-236-3
Surface Mount
50 ppm/°C
1 mA
85 °C
-40 °C
2.2 %
TO-92-3(StandardBody),TO-226_straightlead
Texas Instruments
LM431AIZ/NOPB
100 mA
37 V
Adjustable
2.495 V
Shunt
TO-92-3
TO-226-3
TO-92-3
Through Hole
50 ppm/°C
1 mA
85 °C
-40 °C
2.2 %

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 1.21
10$ 1.08
25$ 1.03
100$ 0.84
250$ 0.79
500$ 0.70
Digi-Reel® 1$ 1.21
10$ 1.08
25$ 1.03
100$ 0.84
250$ 0.79
500$ 0.70
Tape & Reel (TR) 1000$ 0.55
2000$ 0.51
5000$ 0.49
10000$ 0.47
Texas InstrumentsSMALL T&R 1$ 0.90
100$ 0.69
250$ 0.51
1000$ 0.36

Description

General part information

LM431 Series

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.

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.