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12V Input, 1.5V Output, 10A Sync Buck Converter Evaluation Module



  • 10 V - 14 V input range
  • 1.5 V fixed output, adjustable with single resistor
  • 10 A dc Steady State Output Current
  • 300 kHz switching frequency (Fixed by TPS40190)
  • Single Main Switch N-channel MOSFET and Single Synchronous Rectifier N-channel MOSFET
  • Double Sided 3 x 3 PCB with all components on top side
  • Active Converter uses less than 1.2 square inches - 1.775 x 0.670
  • Convenient test points for probing critical waveforms and non-invasive loop response testing

Texas Instruments  TPS40190EVM-001

The TPS40190EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed 1.5 V output at up to 10 A from a 12 V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the TPS40190 Reduced Pin Count Synchronous Buck Controller. TPS40190EVM-001 is designed to use a regulated 12 V (10 V-14 V) bus to produce a high current, regulated 1.5 V output at up to 10 A of load current. The TPS40190EVM-001 is designed to demonstrate the TPS40190 in a typical regulated bus to low-voltage application while providing a number of test points to evaluate the performance of the TPS40190 in a given application. The EVM can be modified to support output voltages from 0.9 V to 3.3 V by changing a single set resistor.