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TPS40101 Datasheet Midrange Input Synchronous Buck Controller

Manufacturer: Texas Instruments

Overview: TPS40101 www.ti.com SLUS726 – SEPTEMBER 2006 MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH ADVANCED SEQUENCING AND OUTPUT.

General Description

The TPS40101 is a wide-input synchronous, step-down controller that offers programmable closed loop soft-start, programmable UVLO and hysteresis, programmable current limit with hiccup recovery and can be synchronized to other timebases.

The TPS40101 incorporates MOSFET gate drivers for external N-channel MOSFETs.

Gate drive logic incorporates adaptive anti-cross conduction circuitry for improved efficiency, reducing diode conduction in the rectifier MOSFET.

Key Features

  • Operation over 4.5 V to 18 V Input Range.
  • 100 kHz to 1 MHz Voltage Mode Control.
  • Output Voltage Range From 0.69 V to 5.5 V.
  • Simultaneous, Ratiometric and Sequential Startup Sequencing.
  • Remote Sensing (Via Separate GND/PGND).
  • 24-Pin QFN Package.
  • Thermal Shutdown.
  • Programmable Overcurrent Protection.
  • Power Good Indicator.
  • 1%, 690-mV Reference.
  • Output Margining, 3% and 5%.
  • Programmable UVLO.

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