TPS544B20
TPS544B20 is Synchronous Buck Converters manufactured by Texas Instruments.
Features
- 1 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
Nex FET™ Power Stage
- 600-m V, 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 patible 20-A, 30-A Converters
2 Applications
- Test and Instrumentation
- Ethernet Switches, Optical Switches, Routers,
Base Stations
- Servers
- Enterprise Storage SSD
- High-Density Power Solutions
3 Description
The TPS544B20 and TPS544C20 devices are PMBus patible, 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 Nex FET power stage and optimized drivers, allows for very highdensity 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.
Table 1. Device Information(1)
PART NAME TPS544B20 TPS544C20
PACKAGE LQFN (40)
BODY SIZE (NOM) 5.00 mm × 7.00 mm
(1) For all available packages, see the orderable addendum at the end of the datasheet.
Efficiency (%)
Efficiency vs Output...
