text.skipToContent text.skipToNavigation


5V Input, 1.8V Output, 10A Synchronous Buck Evaluation Module



  • 4.5 V to 5.5 V input range
  • 1.8 V fixed output, adjustable with single resistor
  • 10 A dc steady-state output current
  • 300 kHz switching frequency (fixed by TPS40040)
  • Single main switch MOSFET for both main switch and synchronous rectifier
  • Double-sided 2 active layer PCB with all components on top side
  • Active converter area of less than 1.5 in.² (i.e., <1.4 in. x 1.0 in.)
  • Convenient test points for probing switching waveforms and noninvasive loop response testing

Texas Instruments  TPS40040EVM-001

The TPS40040EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed1.8 V output at up to 10 A from a 5 V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for startup. The module uses the TPS40040 reduced pin count, low-voltage, synchronous buck controller.