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LM3557 - Step-Up Converter

General Description

The LM3557 is a complete solution for white LED drive applications.

Key Features

  • 1.
  • 2 VIN Range: 2.7V.
  • 7.5V.
  • Small External Components.
  • 1.25 MHz Constant-Switching Frequency.
  • Output Over-Voltage Protection.
  • Input Under-Voltage Protection.
  • Cycle-By-Cycle Current Limit.
  • TRUE.

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📁 Similar Datasheet

Part Number Description Manufacturer
LM3557 Step-Up Converter National Semiconductor

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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.

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LM3557 www.ti.com SNVS338B – NOVEMBER 2004 – REVISED FEBRUARY 2013 LM3557 Step-Up Converter for White LED Applications Check for Samples: LM3557 FEATURES 1 •2 VIN Range: 2.7V–7.5V • Small External Components • 1.25 MHz Constant-Switching Frequency • Output Over-Voltage Protection • Input Under-Voltage Protection • Cycle-By-Cycle Current Limit • TRUE SHUTDOWN: No DC current paths to ground during shutdown • Low Profile Package: <1 mm Height -8 Pin WSON • No External Compensation APPLICATIONS • White LED Display Lighting • Cellular Phones • PDAs DESCRIPTION The LM3557 is a complete solution for white LED drive applications.