SLVUB26D May   2017  – February 2022 TPSM846C23

 

  1.   Trademarks
  2. 1Description
  3. 2Getting Started
  4. 3Test Point Descriptions
  5. 4Operation Notes
  6. 5Performance Data
  7. 6Schematic
  8. 7Bill of Material
  9. 8PCB Layout
  10. 9Revision History

Description

The TPSM846C23 is a PMBus™ enabled, synchronous buck power module designed to provide up to 35 A of output current. The TPSM846C23 can be paralleled with two devices to achieve output current up to 70 A. The TPSM846C23 is a highly integrated, PMBus-enabled DC-DC power module that combines a 35-A DC/DC converter with power MOSFETs, a shielded inductor, some input and output capacitors, and passives into a low profile package. The input voltage range is 4.5 V to 15 V. The output voltage range is 0.35 V to 2 V. The PMBus interface provides for converter configuration as well as monitoring of key parameters including output voltage, output current, and the internal die temperature, as well as many user-programmable configuration options.

This evaluation module is designed to demonstrate the ease-of-use and small printed-circuit-board area that can be achieved when paralleling two TPSM846C23 power modules. Monitoring test points are provided to allow measurement of the following:

  • Efficiency
  • Power dissipation
  • Input ripple
  • Output ripple
  • Line and load regulation
  • Transient response

Additionally, control test points are provided for use of the power good and synchronization features of the device. The EVM uses a recommended PCB layout that maximizes thermal performance and minimizes output ripple and noise.