MP3384L

The MP3384L is a step-up converter to control up to 4 white LED strings for LCD backlighting.
The MP3384L employs a fixed-switching frequency that can be selected from either 625kHz or 1.25MHz. It takes a 3V-to-25V input supply: The low-end input voltage allows the MP3384L to power a tablet display from a single battery.
The MP3384L has 4 internal current sources to independently regulate the current in each LED string to a value set by an external, current-setting resistor. It achieves current balance within 2.5% regulation accuracy between strings. Its low 600mV regulation voltage for the LED current sources reduces power loss and improves efficiency.
The MP3384L features multiple protections, including under-voltage lockout, MOSFET current limiting, over-voltage protection, open/short LED protection, and thermal shut-down.
The MP3384L is available in a 3mm×3mm QFN16 package.