Packaging information
| Package | Pins LQFN-CLIP (RVF) | 40 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the TPS544B20
- 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
Description for the TPS544B20
The TPS544B20 and TPS544C20 devices are PMBus compatible, non-isolated DC-DC Integrated FET converters, capable of high-frequency operation and delivering 20-A , or 30-A current output from a 5 mm × 7 mm package, enabling high-power density and fast transient performance with minimal PCB area. The PMBus interface provides for converter configuration as well as monitoring of key parameters including output voltage, current and an optional external temperature. High-frequency, low-loss switching, provided by an integrated NexFET power stage and optimized drivers, allows for very high-density power solutions and reduced inductor and filter capacitor sizes. Response to fault conditions can be set to either restart or latch off depending on system requirements.