TPS544B20RVFT Part Information

Details for TPS544B20RVFT by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

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Part Description

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 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.

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Part Features

  • 4.5-V to 18-V input, 0.6-V to 5.5-V Output
  • 5 mm u00d7 7 mm LQFN Package with 0.5-mm Pitch
  • 600-mV, 0.5% Reference
  • Differential Remote Sensing
  • External Temperature Monitoring with 2N3904
  • Integrated 4.5-mu03a9 and 2.0-mu03a9 Stacked NexFETu2122 Power Stage
  • Lossless, Low-Side MOSFET Current Sensing
  • Monotonic Start-Up into Pre-Biased Output
  • Output Voltage Margin and Trim
  • Output Voltage and Output Current Reporting
  • PMBus-Enabled Converters: 20 A, 30 A
  • Pin Compatible 20-A, 30-A Converters
  • Programmable via PMBus u2013 Overcurrent Protection u2013 UVLO, Soft-Start u2013 PGOOD, OV, UV, OT Levels u2013 Fault Responses u2013 Turn-On and Turn-Off Delays
  • Selectable D-CAPu2122 and D-CAP2u2122 Mode Control
  • Single Thermal Pad
  • Thermal Shutdown

Part Specifications

Topology Synchronous Buck (Step Down)
Input Voltage Min 4.5V
Input Voltage Max 18V
No. of Outputs 1Outputs
DC / DC Converter IC Case LQFN
No. of Pins 40Pins
Output Current 20A
Output Voltage Min 600mV
Output Voltage Max 5.5V
Switching Frequency 1MHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • 4.5-V to 18-V, 20-A synchronous SWIFT™ buck converter with PMBus programmability and monitoring | Texas Instruments

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