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LM3561 - Synchronous Boost Converter

General Description

The LM3561 is a 2-MHz fixed-frequency currentmode synchronous boost converter.

The device is designed to operate as a single 600-mA constant current driver for high-current white LEDs.

Key Features

  • 1.
  • 2 High-Side Current Source Allows Grounded LED Cathode.
  • Up to 90% Efficient.
  • Ultra-Small Solution Size:.

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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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LM3561 www.ti.com SNOSB44C – MARCH 2011 – REVISED MAY 2013 Synchronous Boost Converter With 600-mA High-Side LED Driver and I2C-Compatible Interface Check for Samples: LM3561 FEATURES 1 •2 High-Side Current Source Allows Grounded LED Cathode • Up to 90% Efficient • Ultra-Small Solution Size: <16mm2 • Three Operating Modes: Torch, Flash, and LED Indicator • Accurate and Programmable LED Current from 18mA to 600mA • Hardware Flash and Torch Enable • LED Thermal Sensing and Current Scaleback • Software Selectable Input Voltage Monitor • Programmable Flash Timeout • Dual Synchronization Inputs for RF Power Amplifier Pulse Events • Open and Short LED Detection • Active High Hardware Enable for Protection Against System Faults • 400kHz I2C-compatible Interface • 12-Bump (1.215mm × 1.