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AP431S

LOW Knee CURRENT 2.5/2.495V ADJUSTABLE SHUNT REGULATOR

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Description

The AP431S is a 3-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 makes it ideal substitute for Zener diode in applications such as switching power supply, charger and other adjustable regulators.

The AP431S has the same electrical specifications as the industry standard 431 except that it features a low minimum cathode current for regulation. The typical value of 50μA makes the parts ideal for very low power dissipation applications.

The output voltage of AP431S can be set to any value between VREF (2.5V/2.495V) and the corresponding maximum cathode voltage (36V).

The AP431S is offered in two grade initial voltage tolerance at +25°C, 0.5% and 1%.

This IC is available in 3 packages: TO92 (ammo packing), SOT23 and SOT89.

Feature(s)

  • Low Minimum Cathode Current for Regulation: 50μA (Typ.), 100μA (Max.)

  • Programmable Precise Output Voltage from 2.5V/2.495V to 36V

  • High Stability Under Capacitive Load

  • Low Deviation of Reference Voltage Over Full Temperature Range: 11mV Typical (-40°C to +125°C)

  • Sink Current Capacity from 100µA to 100mA

  • Low Dynamic Impedance: 0.1Ω (Typ.)

  • Wide Operating Temperature Range: -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, 2.495 V
Accuracy (%) 0.5, 1 %
MaximumInput Voltage (V) 40 V
Sink Current (mA) 100 mA
Minimum Cathode Current for Regulation Typ (µA) 50 µA
Maximum Slope Resistance (Ω) 0.3 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
AP431SAN1TR-G1

AP431SAN1TR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Avnet EU 42000 11/30/2022 Germany Buy Now
Digi-Key Electronics 206190 11/30/2022 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 6445 11/30/2022 England Buy Now
Mouser Electronics Inc. 18668 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AP431SANTR-G1

AP431SANTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 5910 11/30/2022 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 343669 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AP431SARTR-G1

AP431SARTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 906 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AP431SAZTR-G1

AP431SAZTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 1693 11/30/2022 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 1137 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AP431SBN1TR-G1

AP431SBN1TR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 3130 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Future Electronics 12000 11/29/2022 Canada Buy Now
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AP431SBNTR-G1

AP431SBNTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Arrow Electronics 3000 11/30/2022 United States Buy Now
Mouser Electronics Inc. 14770 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AP431SBRTR-G1

AP431SBRTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 1490 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP431SBZTR-G1

AP431SBZTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2880 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AP431SHAN1TR-G1

AP431SHAN1TR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 5472 11/30/2022 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 74596 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Future Electronics - Asia 3000 11/29/2022 Singapore Contact Sales
Request Sample
AP431SHANTR-G1

AP431SHANTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Digi-Key Electronics 5860 11/30/2022 Europe, Asia, North America Buy Now
Mouser Electronics Inc. 14468 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP431SHAZTR-G1

AP431SHAZTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 1699 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP431SHBNTR-G1

AP431SHBNTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2992 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AP431SHBRTR-G1

AP431SHBRTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 278 11/30/2022 South America, North America, Asia, Europe, Middle East Buy Now
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AP431SHBZTR-G1

AP431SHBZTR-G1

Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 3967 11/30/2022 South America, North America, Asia, Europe, Middle East 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-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site
PCN-2514 2021-03-09 2021-06-09 Additional Wafer Source JKFAB