STLD40D - ST Microelectronics

STLD40D White led power supply

STLD40D is a boost converter that operates from 3.0 V to 5.5 V. It can provide an output voltage as high as 37 V and can drive u.

Features

■ Inductor switches boost controller
■ PFM mode control
■ High efficiency over wide range of input voltage from 3.0 V to 5.5 V
■ Over voltage protection with automatic restart
■ Adjustable peak current limit
■ Enable pin with possibility of PWM dimming control
■ Low shutdown current < 1 µA
■ Small external component
■ Good load and line regulation
■ QFN8 3 x 3 mm Applications
■ White LED supply for LCD backlight
■ Mobile phone
■ PDA and organizers
■ Any handsets powered form 3.0 V to 5.5 V QFN8 (3 x 3 mm) resistor RLED. The device can be turned ON/OFF through the logic enable signal pin EN. B.