Description

The AP3605 is a step-up DC/DC converter based on 1.5x charge pump current source, it is specially designed for LED supplies in backlight display.

Features

• Regulated Output Current with ±3 Matching

• Regulated ±10 Output Current Source

• Drive up to 4 LEDs at 20 mA Each

• Wide Operating Voltage Range: 2.7V to 5.5V

• High Efficiency up to 93

• High Operating Frequency: 1MHz

• Built-in Soft-Start to Limit the Inrush Current

• LED Brightness Control through PWM and Analog

Signal

• Built-in Standby Mode to Make PWM Dimming

Control Optimized

• Built-in OTSD (Over Temperature Shutdown)

Function to Protect the Device from Burn Out

Applications

• Mobile Phone

• MP3, MP4

• White LED Backlight in Mobile Phone, PDA