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Evaluation Module for TPS65251, PMU with 3 DC/DC Converters, up to 18Vin



  • Wide Input Supply Voltage Range (4.5 V to 18 V)
  • 0.8 V, 1% Accuracy Reference
  • Continuous Loading: 3 A (Buck 1), 2 A (Buck 2 and 3)
  • Maximum Current: 3.5 A (Buck 1), 2.5 A (Buck 2 and 3)
  • Adjustable Switching Frequency, 300 kHz - 2.2 MHz Set By External Resistor
  • Dedicated Enable for Each Buck
  • External Synchronization Pin for Oscillator
  • External Enable/Sequencing and Soft Start Pins
  • Adjustable Current Limit Set By External Resistor
  • Soft Start Pins
  • Current-Mode Control With Simple Compensation Circuit
  • Power Good
  • Optional Low Power Mode Operation for Light Loads
  • QFN Package, 40-Pin 6 mm × 6 mm RHA

Texas Instruments  TPS65251EVM

The TPS65251EVM is a high current, synchronous step down three buck switcher evaluation module. The user’s guide document presents the information required to power the TPS65251 PMIC as well as the support documentation including schematic and bill of materials. The TPS65251 PMIC is designed to provide 3-A and 2-A continuous outputs with an operational range of 4.5 V to 18 V and an externally set switching frequency ranging from 300 kHz to 2.2 MHz. When the PMIC is not fully loaded, Buck1 can be loaded to 3.5 A and Buck2 and Buck3 to 2.5 A.