This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
3.0V - 20V, 30A, Synchronous Buck Controller with PMBus™, including Telemetry


Models (2)

Title Category Type Date
TPS40400 PSpice Transient Model PSpice Model ZIP 21 Sep 2016
TPS40400 IBIS MODEL IBIS Model ZIP 09 Jun 2015

Design kits & evaluation modules (1)

Name Part# Type
Evaluation Module for TPS40400 PMBus Synchronous Buck Controller TPS40400EVM-351 Evaluation Modules & Boards

Reference designs

Comparison: 0.8V/8W GaN vs Silicon Power Supply Reference Design

This reference design provides customers with a comparison study on the usage of GaN vs SI in power supply designs. This specific design uses TPS40400 controller to drive CSD87381 for the silicon power supply and LMG1210 with EPC2111 for the GaN power supply to provide 0.8V/10A. This design compares (...)

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

Software (3)

Name Part# Type
Digital Power Software FUSION_DIGITAL_POWER_DESIGNER Application Software & Frameworks
Linux Driver for PMBUS PMBUSSW-LINUX Software Libraries
Compensation Calculator Tool (Rev. D)  (ZIP 131 KB )    09 Dec 2012  
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WEBENCH® Designer TPS40400

  Min   Max Range
Vin  V 3.0 to 20.0V
Vout  V 0.6 to 5V
Iout  A ≤ 30A
Ambient Temp  °C -40 to 150°C