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LM3481 Datasheet High Efficiency Low-side N-channel Controller

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM3481 High Efficiency Low-Side N-Channel Controller for Switching Regulators November 16, 2007 LM3481 High Efficiency Low-Side N-Channel Controller for Switching.

General Description

The LM3481 is a versatile Low-Side N-FET high performance controller for switching regulators.

It is suitable for use in topologies requiring a low-side FET, such as boost, flyback, SEPIC, etc.

The LM3481 can be operated at extremely high switching frequencies in order to reduce the overall solution ..

Key Features

  • such as thermal shutdown, short-circuit protection and over voltage protection. Power saving shutdown mode reduces the total supply current to 5µA and allows power supply sequencing. Internal soft-start limits the inrush current at start-up. Key Specifications.
  • Wide supply voltage range of 2.97V to 48V.
  • 100 kHz to 1 MHz Adjustable and Synchronizable clock frequency.
  • ±1.5% (over temperature) internal reference.
  • 10 µA shutdown current (over temperature) Features.

LM3481 Distributor