AP3032 Overview
The AP3032 is an inductor-based DC/DC boost converter designed to drive up to 4 rows of LEDs with 7 series for each in parallel for backlight. A constant frequency 1MHz PWM control scheme is employed in this IC, which means tiny external ponents can be used. Specifically, 1mm tall 6.8μH inductor and 1µF aluminum output capacitor for the typical application is sufficient.
AP3032 Key Features
- Efficiency Up to 81%（VIN=5V, IOUT=80mA）
- Drives up to 4 Rows of WLEDs with 7 Series
- Fast 1 MHz Switching Frequency
- Wide Input Voltage Range: 2.7V to 9V
- Low Feedback Voltage: 200mV
- Output Over Voltage Protection
- Cycle-by-cycle Current Limit: 1.4A
- Built in Soft-start
- Built in Standby-mode to Achieve High
- Frequency PWM Dimming
AP3032 Applications
- 7’ to 10’ LCD Panels