The TPS544B20 and TPS544C20EVM-634 devices are PMBus compatible, non-isolated DC-DC IntegratedFET converters, capable of high-frequency operation and delivering 20-A , or 30-A current outputfrom a 5 mm × 7 mm package, enabling high-power density and fasttransient performance with minimal PCB area. The PMBus interface provides for converterconfiguration as well as monitoring of key parameters including output voltage, current and anoptional external temperature. High-frequency, low-loss switching, provided by an integrated NexFETpower stage and optimized drivers, allows for very high-density power solutions and reducedinductor and filter capacitor sizes. Response to fault conditions can be set to either restart orlatch off depending on system requirements.
Feature
- PMBus-Enabled Converters: 20 A, 30 A
- 4.5-V to 18-V input, 0.6-V to 5.5-V Output
- 5 mm × 7 mm LQFN Package with 0.5-mm Pitch
- Single Thermal Pad
- Integrated 4.5-mΩ and 2.0-mΩ Stacked NexFET Power Stage
- 600-mV, 0.5% Reference
- Lossless, Low-Side MOSFET Current Sensing
- Selectable D-CAP and D-CAP2 Mode Control
- Differential Remote Sensing
- Monotonic Start-Up into Pre-Biased Output
- Output Voltage Margin and Trim
- Output Voltage and Output Current Reporting
- External Temperature Monitoring with 2N3904
- Programmable via PMBus
- Overcurrent Protection
- UVLO, Soft-Start
- PGOOD, OV, UV, OT Levels
- Fault Responses
- Turn-On and Turn-Off Delays
- Thermal Shutdown
- Pin Compatible 20-A, 30-A Converters
