General Description

BIT3368 is a high frequency PWM controller

integrating required functions for boost conversion

in a small SOP-8 package. A low 0.21V feedback

voltage, over voltage protection, over current

protection and load short protection make BIT3368

an ideal controller for LED backlight supplies.

Frequency selection is flexible in variable system

design. Internal soft start function can avoid inrush

current during start-up period. Over temperature

protection and UVLO make system reliable. CMOS

process greatly reduces the operating current

compared with similar products.

特性 Features

Current Mode control and fixed frequency

operation

8V ~ 18V operation voltage

Internal minimum off time

Over current protection, OCP

Over voltage protection, OVP

Internal soft-start

External Schottky open/short protection

External inductor short protection

Over temperature protection, OTP

Internal under voltage lock out, UVLO

Totem pole output

SOP-8 package

Applications

Backlight for LED Panels

Portable Device Backlighting

LCD Display Module