ATL431
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
2.5V low-Iq adjustable precision shunt regulator

 

Models (6)

Title Category Type Date
ATL431A TINA-TI TRANSIENT REFERENCE DESIGN TINA-TI Reference Design TSC 04 Oct 2019
ATL431A TINA-TI TRANSIENT SPICE MODEL TINA-TI Spice Model ZIP 04 Oct 2019
ATL431A Unencrypted PSpice Transient Model (Rev. B) PSpice Model ZIP 21 Jan 2019
ATL431A PSpice Transient Model (Rev. D) PSpice Model ZIP 21 Jan 2019
ATL431B PSpice Transient Model (Rev. C) PSpice Model ZIP 31 May 2016
ATL431B Unencrypted PSpice Transient Model PSpice Model ZIP 31 May 2016

Design kits & evaluation modules (3)

Name Part# Type
ATL431 adjustable shunt regulator evaluation module ATL431EVM-001 Evaluation Modules & Boards
UCC28780 active clamp flyback 45W AC/DC EVM with GaN FET UCC28780EVM-002 Evaluation Modules & Boards
UCC28780 active clamp flyback converter 45W EVM with UCC24612 and Si MOSFET UCC28780EVM-021 Evaluation Modules & Boards

Reference designs

22-W/in3, 93.1% peak efficiency, 100-W USB-PD 3.0 AC/DC adapter reference design with Si MOSFET

This fully-tested reference design is a high-efficiency, high-power-density, AC/DC adapter solution with a wide input voltage range (100- to 240-V AC) for laptop adapters and smartphone charger applications. This design consists of a front-end transition-mode (TM) power factor correction (PFC (...)

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

Development tools (1)

Name Part# Type
Shunt voltage reference external resistor quick-start calculator SHUNT_VOLTAGE_REFERENCE_RESISTOR_CALCULATOR Calculation Tools

CAD/CAE symbols

Part# Package | Pins CAD File (.bxl) STEP Model (.stp)
ATL431 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Please follow the instructions below to view the CAD symbols:

Step 1: Download and install the Ultra Librarian software

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Step 3: Open the .bxl file with the Ultra Librarian software.

You can always access the complete CAD/CAE Symbols database at //webench.ti.com/cad/

Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a free download.

The UL Reader is a subset of the Ultra Librarian toolset that can generate, import, and export components and their attributes in virtually any EDA CAD/CAE format.

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WEBENCH® Designer ATL431

  Min   Max Range
Vin  V 2.6 to 36.0V
Vout  V 2.501 to 36V
Iout  A ≤ 0.1A
Ambient Temp  °C -40 to 125°C