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AS431

2.5 ADJUSTABLE SHUNT REGULATORS

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Description

The AS431 is a three-terminal adjustable shunt regulator with guaranteed thermal stability over a full operation range. It features sharp turn-on characteristics, low temperature coefficient and low output impedance, which make it ideal substitute for Zener diode in applications such as switching power supply, charger and other adjustable regulators. The output voltage of AS431 can be set to any value between VREF (2.5V) and the corresponding maximum cathode voltage (36V). The AS431 precision reference is offered in two voltage tolerance: 0.5% and 1.0%.

Feature(s)

  • Programmable Precise Output Voltage from 2.5V to 36V
  • High Stability under Capacitive Load
  • Low Temperature Deviation: 4.5mV Typical
  • Low Equivalent Full-range Temperature Coefficient with 20PPM/°C Typical
  • Sink Current Capacity from 1mA to 100mA
  • Low Output Noise
  • Wide Operating Range of -40°C to 125°C

Application(s)

  • Charger
  • Voltage Adapter
  • Switching Power Supply
  • Graphic Card
  • Precision Voltage Reference

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
AEC Qualified No
ReferenceVoltage (V) 2.5 V
Accuracy (%) 0.5, 1 %
MaximumInput Voltage (V) 36 V
Sink Current (mA) 100 mA
Minimum Cathode Current for Regulation Typ (µA) 1000 µA
Maximum Slope Resistance (Ω) 0.5 Ω
Operating Ambient Temperature Range (°C) -40 to 125 °C

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Orderable Part Number Buy from Distributor / Contact Sales Request Samples
AS431ANTR-E1

AS431ANTR-E1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 2996 9/30/2022 United States Buy Now
Mouser Electronics Inc. 41723 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 5535 9/29/2022 Europe, Asia, North America Buy Now
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AS431ANTR-G1

AS431ANTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 3491 9/30/2022 United States Buy Now
Farnell, An Avnet Company 2031 9/30/2022 England Buy Now
Mouser Electronics Inc. 1983365 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 795886 9/29/2022 Europe, Asia, North America Buy Now
Future Electronics - Asia 642000 9/29/2022 Singapore Contact Sales
Request Sample
AS431ARTR-E1

AS431ARTR-E1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 963 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AS431AZTR-E1

AS431AZTR-E1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Farnell, An Avnet Company 2260 9/30/2022 England Buy Now
Mouser Electronics Inc. 1880 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 41983 9/29/2022 Europe, Asia, North America Buy Now
Request Sample
AS431AZTR-G1

AS431AZTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 1975 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AS431BKTR-G1

AS431BKTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Future Electronics - Asia 48000 9/29/2022 Singapore Contact Sales
Request Sample
AS431BNTR-E1

AS431BNTR-E1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 4101 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 15257 9/29/2022 Europe, Asia, North America Buy Now
Request Sample
AS431BNTR-G1

AS431BNTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Farnell, An Avnet Company 2313 9/30/2022 England Buy Now
Mouser Electronics Inc. 29873 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
CEAC International Ltd. 51000 9/29/2022 China Contact Sales
Digi-Key Electronics 71222 9/29/2022 Europe, Asia, North America Buy Now
Future Electronics - Asia 90000 9/29/2022 Singapore Contact Sales
Request Sample
AS431BRTR-G1

AS431BRTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 122 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AS431BZTR-E1

AS431BZTR-E1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow/Components Agent Ltd. 18000 9/30/2022 Hong Kong Buy Now
Farnell, An Avnet Company 1880 9/30/2022 England Buy Now
Mouser Electronics Inc. 5235 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 381 9/29/2022 Europe, Asia, North America Buy Now
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AS431BZTR-G1

AS431BZTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 37 9/29/2022 Europe, Asia, North America Buy Now
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AS431HANTR-G1

AS431HANTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Avnet EU 3000 9/30/2022 Germany Buy Now
Farnell, An Avnet Company 5845 9/30/2022 England Buy Now
Digi-Key Electronics 5727 9/29/2022 Europe, Asia, North America Buy Now
Request Sample
AS431HAZTR-G1

AS431HAZTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 441 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Digi-Key Electronics 2151 9/29/2022 Europe, Asia, North America Buy Now
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AS431HBNTR-G1

AS431HBNTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 71 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AS431HBZTR-G1

AS431HBZTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 3507 9/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AS431IANTR-G1

AS431IANTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Avnet EU 30000 9/30/2022 Germany Buy Now
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AS431IBNTR-G1

AS431IBNTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 3000 9/29/2022 Europe, Asia, North America Buy Now
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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2514 2021-03-09 2021-06-09 Additional Wafer Source JKFAB
PCN-2492 2020-11-04 2021-05-04 Device End of Life (EOL)
PCN-2471 2020-07-01 2020-11-29 Additional Wafer Source - GFAB
PCN-2415 2019-06-28 2019-12-28 Device End of Life (EOL)
PCN-2331 2018-03-22 2018-06-22 Additional Qualified BOM (Bill of Materials) on Selected Devices
PCN-2246 2017-06-28 2017-09-28 Additional Qualified Assembly/Test (A/T) Site – Chengdu A/T (CAT) with Part Marking Update