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LM27241 - Synchronous Buck Regulator Controller

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General Description

The LM27241 is an adjustable 200kHz-500kHz single channel voltage-mode controlled high-speed synchronous buck regulator controller.

It is ideally suited for battery powered applications such as laptop and notebook computers.

The LM27241 requires only N-channel FETs for both the upper and lower positions of the synchronous stage.

Overview

OBSOLETE LM27241 www.ti.com SNVS309 – MAY 2005 LM27241 Synchronous Buck Regulator Controller for Mobile Systems Check for Samples:.

Key Features

  • 1.
  • 2 Input voltage range from 5.5V to 28V.
  • Forced-PWM or Pulse-skip modes.
  • Lossless bottom-side FET current sensing.
  • Adaptive duty cycle clamping.
  • High current N-channel FET drivers.
  • Low shutdown supply currents.
  • Reference voltage accurate to within ±1.5%.
  • Output voltage adjustable down to 0.6V.
  • Power Good flag and Chip Enable.
  • Under-voltage lockout.
  • Over-voltage/Under-voltage protection.

📁 Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LM27241 Synchronous Buck Regulator Controller National Semiconductor

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