AP3032 - BCD Semiconductor

AP3032 WHITE LED STEP-UP CONVERTER

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 components can be used. Specifically, 1mm tall 6.8μH inductor and 1µF aluminum output capacitor for the typical applicatio.

Features

• Efficiency Up to 81%（VIN=5V, IOUT=80mA）
• Drives up to 4 Rows of WLEDs with 7 Series for Each in Parallel (VIN=5V)
• 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
• Built in Thermal Shutdown Function
• Under Voltage Lockout Applications
• 7’ to 10’ LCD Panels
• Digital Photo Frame
• GPS Receiver SOT-23-6 Dec. 2012 Rev. 1. 2 Figure 1. Package Type of AP3032 BCD Semiconductor Manufact.