LP8557 Datasheet - Texas Instruments

LP8557 High-Efficiency LED Backlight Driver

The LP8557 and LP8557I are high-efficiency LED drivers each featuring an integrated DC-DC inductive boost converter and six high-precision current sinks. LP8557 is intended for applications that exclusively use a pulse width modulated (PWM) signal for controlling the brightness while LP8557I is inte.

LP8557 Features

* 1 High-Efficiency DC-DC Boost Converter With 28-V Integrated Power MOSFET

* 2.7-V to 5.5-V VDD Range for Supporting SingleCell Li-Ion Battery Applications

* Six 25-mA High-Precision LED Current Sinks

* Adaptive Boost Voltage and LED Current Sink Headroom Controls for

LP8557-etcTI.pdf