The PWR681EVM evaluation module uses either the TPS544B25 or TPS544C25 devices. The TPS544B25 and TPS544C25 are highly integrated synchronous buck converters that are designed for up to 20-A or 30-A current output, respectively.

The PWR681EVM is designed as a single output DC-DC converter that demonstrates either the TPS544B25 or the TPS544C25 in a typical low-voltage application while providing a number of test points to evaluate the performance. It uses a nominal 12-V input bus to produce a regulated 0.95-V output at up to either 20-A or 30-A of load current, depending on the device installed.

• High-Density Power Solutions
• Communications Equipment
• Servers and Computing Equipment
• Smart Power Systems

• Regulated 0.95-V output up to 30-ADC, steady-state output current
• Configuarable features via the PMBus interface include:
  • Programmable Output Voltage via the PMBus Interface
  • Programmable UVLO, Soft Start, and Enable via the PMBus Interface
  • Programmable Overcurrent Warning, Fault Limits and Programmable Response to Faults via the PMBus Interface
  • Programmable Overvoltage, Undervoltage Warning, Fault Limit and Programmable Response to Faults via the PMBus Interface
  • Programmable external Overtemperature Warning, Fault Limit and Programmable Response to Faults via the PMBus Interface
• Convenient Test Points for Probing Critical Waveforms
• Optional External Temperature Sensor