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LM2748 Datasheet Synchronous Buck Controller

Manufacturer: Texas Instruments

Download the LM2748 datasheet PDF. This datasheet also includes the LM2745 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM2745-etcTI.pdf) that lists specifications for multiple related part numbers.

General Description

The LM2745/8 are high-speed synchronous buck regulator controllers with an accurate feedback voltage accuracy of ±1.5%.

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

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

Overview

LM2745, LM2748 www.ti.com SNOSAL2E – APRIL 2005 – REVISED APRIL 2013 LM2745 / LM2748 Synchronous Buck Controller with Pre-Bias Startup, and Optional Clock Synchronization Check for Samples: LM2745,.

Key Features

  • 1.
  • 2 Switching Frequency from 50 kHz to 1 MHz.
  • Switching Frequency Synchronize Range 250 kHz to 1 MHz (LM2745 Only).
  • 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.
  • ±1.5% Feedback Voltage Accuracy Over Temperature.
  • Low.