LP5527 Datasheet (National Semiconductor)

LP5527, lighting management

The LP5527 is a lighting management unit for handheld devices with I2C compatible control interface.

The LP5527 has a step-up DC/DC converter with high current output and it drives display and keypad backlights and powers the camera flash LED.

In addition the DC/DC converter has the output current t

LP5527 Features

* n High current boost DC-DC converter (up to 1A output current) n Programmable boost output voltage n 400 mA flash LED constant current driver with low tolerance and a safety circuit n Synchronization pin for the flash timing n Two single-ended audio inputs with gain control n Four constant current 1