AP3033:LED Drivers for Displays / Backlights

Part NumberData SheetSPICE ModelFunctionMinimumInput Voltage (V)MaximumInput Voltage (V)Maximum Output Voltage (V)Number of Regulated Output ChannelsMaximum Output Current per Channel (mA)Typical Over-Current Protection Current (mA)Switching Frequency (MHz)Efficiency (%)Quiescent Current (mA)Standby Quiescent Current (µA)SW RDS(ON) (Ω)DimmingOVPSoft StartVFB (V)OperatingTemperatureRange (°C)
AP3033AP3033.pdf-Boost Converter316381-13001925--High Frequency PWM and External DC-Yes0.2-40 to +85
Description

The AP3033 is an inductor-based DC/DC boost converter designed to drive °C arrays. 1.3A switching current allows AP3033 to be used in different 7' to 10' LCD panel backlights (3S8P °C arrays typically). A constant frequency 1MHz PWM control scheme is employed in this IC, which means tiny external components can be used. Specifically, 1mm tall 10μH inductor and 10μF output capacitor for the typical application is sufficient. The over output voltage protection is equipped in AP3033, which protects the IC under open load condition. The AP3033 includes UVLO, soft-start, standby mode, current limit and OTSD to protect the circuit.

Application
  • 7' to 10' LCD Panels
  • Digital Photo Frame
  • GPS Receiver
  • Netbook
  • PDVD
Features
  • Up to 92% Efficiency (VIN=9V, IOUT=160mA)
  • Up to 88% Efficiency (VIN=5V, IOUT=160mA)
  • Fast 1MHz Switching Frequency
  • Wide Input Voltage Range: 3V to 16V
  • Low 200mV Feedback Voltage
  • Output Over Voltage Protection
  • Cycle by Cycle Current Limit: 1.3A
  • High Frequency PWM Dimming
  • Built-in Soft-start
  • Built-in Thermal Shutdown Function
  • Under Voltage Lockout
SOT26
TSOT26
AP3033.pdf AP3033
ZXTP2006E6 ZXTP2006E6
ZXTP2006E6 ZXTP2006E6