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LM2586 Datasheet Simple Switcher 3a Flyback Regulator

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: LM2586 SIMPLE SWITCHER 3A Flyback Regulator with Shutdown May 1996 LM2586 SIMPLE SWITCHER ® 3A Flyback Regulator with.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LM2586 series of regulators are monolithic integrated circuits specifically designed for flyback, step-up (boost), and forward converter applications.

The device is available in 4 different output voltage versions: 3.3V, 5.0V, 12V, and adjustable.

Requiring a minimum number of external components, these regulators are cost effective, and simple to use.

Key Features

  • include soft start mode to reduce in-rush current during start up, and current mode control for improved rejection of input voltage and output load transients and cycle-by-cycle current limiting. The device also has a shutdown pin, so that it can be turned off externally. An output voltage tolerance of ± 4%, within specified input voltages and output load conditions, is guaranteed for the power supply system. Features Requires few external components Family of standard inductors and transformer.

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