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LP5521 Datasheet

Programmable Three Channel Led Driver

Manufacturer: National Semiconductor (now Texas Instruments)

LP5521 Overview

The LP5521 is a three channel LED driver designed to produce variety of lighting effects for mobile devices. High efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device has a program memory for creating variety of lighting sequences.

LP5521 Key Features

  • Adaptive charge pump with 1x and 1.5x gain provides up
  • Charge pump with soft start and overcurrent/short circuit

LP5521 Distributor