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TPS54519 Datasheet 5-a Synchronous Step Down Converter

Manufacturer: Texas Instruments

Overview: TPS54519 www.ti.com SLVSAT3A – SEPTEMBER 2011 – REVISED DECEMBER 2013 2.

General Description

The TPS54519 device is a full featured 6 V, 5 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54519 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm x 3mm thermally enhanced QFN package.

Efficiency is maximized through the integrated 30mΩ MOSFETs and 350μA typical supply current.

Key Features

  • 1.
  • 2 Two 30 mΩ (typical) MOSFETs for high efficiency at 5-A loads.
  • 200kHz to 2MHz Switching Frequency.
  • 0.6 V Voltage Reference With ± 1% Initial Accuracy.
  • Adjustable Slow Start / Sequencing.
  • UV and OV Power Good Output.
  • Low Operating and Shutdown Quiescent Current.
  • Safe Start-up into Pre-Biased Output.
  • Cycle by Cycle Current Limit, Thermal and Frequency Fold Back Protection.
  • 40°C to 140°C Operating Junction.

TPS54519 Distributor

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