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LM2748 - Synchronous Buck Controller

Download the LM2748 datasheet PDF. This datasheet also covers the LM2745 variant, as both devices belong to the same synchronous buck controller family and are provided as variant models within a single manufacturer datasheet.

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.

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.

📥 Download Datasheet

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

📁 Similar Datasheet

Part Number Description Manufacturer
LM2748 (LM2745 / LM2748) Synchronous Buck Controller National Semiconductor
LM2742 N-Channel FET Synchronous Buck Regulator Controller National Semiconductor
LM2743 N-Channel FET Synchronous Buck Regulator Controller National Semiconductor
LM2744 Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller National Semiconductor
LM2745 (LM2745 / LM2748) Synchronous Buck Controller National Semiconductor

Other Datasheets by Texas Instruments

Part Number Description
LM27402 High-Performance Synchronous Buck Controller
LM27403 Synchronous Buck Controller
LM2742 N-Channel FET Synchronous Buck Regulator Controller
LM2743 synchronous buck controller
LM2745 Synchronous Buck Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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, LM2748 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.