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TPS544B25RVFT

DC-DC Switching Buck Step Down Regulator, Adjustable, 4.5V-18Vin, 500mV-5.5Vout, 20Aout, LQFN-40

TEXAS INSTRUMENTS TPS544B25RVFT
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Manufacturer Part No:
TPS544B25RVFT
Order Code:
3121777

Product Overview

The TPS544B25RVFT is a SWIFT™ synchronous Buck Converter with PMBus™ and frequency synchronization. The PMBus 1.2 compliant non-isolated DC-to-DC converter has integrated FETs, capable of high-frequency operation and 20 or 30A current output. High-frequency, low-loss switching, provided by an integrated NexFET™ power stage and optimized drivers, allows for very high-density power solutions. The PMBus interface enables the AVS through VOUT_COMMAND, flexible converter configuration, as well as key parameters monitoring including output voltage, current and an optional external temperature. Response to fault conditions can be set to either restart, latch-OFF or ignore depending on system requirements.
  • Single thermal pad
  • Integrated 5.5 and 2mR stacked NexFET™ power stage
  • Lossless low-side MOSFET current sensing
  • Voltage mode control with input feed-forward
  • Differential remote sensing
  • Monotonic start-up into pre-biased output
  • Output voltage and output current reporting
  • External temperature monitoring with 2N3904 transistor
  • Programmable via the PMBus interface - Overcurrent protection with thermal compensation
  • UVLO, soft-start and soft-stop
  • PGOOD, OV, UV and OT levels
  • Fault responses
  • Turn-ON and turn-OFF delays
  • Thermal shutdown
  • Frequency synchronization to an external clock
  • 500 to 1500mV Reference for adaptive voltage scaling (AVS) and margining through PMBus
  • 0.5% Reference accuracy at 600mV and above

Applications

Test & Measurement, Communications & Networking, Power Management

Product Information

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:
Synchronous Buck (Step Down)

:
4.5V

:
18V

:
1Outputs

:
LQFN

:
40Pins

:
20A

:
500mV

:
5.5V

:
1MHz

:
125°C

:
-

:
-

:
MSL 2 - 1 year
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Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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More stock available to supplier lead times which is approximately 10/31/22

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