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LM2747 Datasheet Synchronous Buck Controller

Manufacturer: Texas Instruments

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General Description

The LM2747 is a high-speed synchronous buck regulator controller with a feedback voltage accuracy of ±1%.

It can provide simple down conversion to output voltages as low as 0.6V.

Though the control section of the IC is rated for 3 to 6V, the driver section is designed to accept input supply rails as high as 14V.

Overview

LM2747 www.ti.com SNVS370B – MARCH 2006 – REVISED MARCH 2013 LM2747 Synchronous Buck Controller with Pre-Bias Startup, and Optional Clock Synchronization Check for Samples:.

Key Features

  • 1.
  • 2 ±1% Feedback Voltage Accuracy Over Temperature.
  • Switching Frequency from 50 kHz to 1 MHz.
  • Switching Frequency Synchronize Range 250 kHz to 1 MHz.
  • Startup with a Pre-Biased Output Load.
  • Power Stage Input Voltage from 1V to 14V.
  • Control Stage Input Voltage from 3V to 6V.
  • Output Voltage Adjustable Down to 0.6V.
  • Power Good Flag and Shutdown.
  • Output Overvoltage and Undervoltage Detection.
  • Low-Side Adjustable.

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