AP3033

WHITE LED STEP-UP CONVERTER General Description Features Preliminary Datasheet AP3033 The AP3033 is an inductor-based DC/DC boost con- · Up to 92% Efficiency verter designed to drive LED arrays. 1.3A switching current allows AP3033 to be used in different 7' to 10' LCD panel backlights (3S8P LED arrays typically). · (VIN=9V, IOUT=160mA) Up to 88% Efficiency (VIN=5V, IOUT=160mA) A constant frequency 1MHz PWM control scheme is · Fast 1MHz Switching Frequency employed in this IC, which means tiny external com- · Wide Input Voltage Range: 3V to 16V ponents can be used. Specifically, 1mm tall 10µH · Low 200mV Feedback Voltage inductor and 10µF output capacitor for the typical · Output Over Voltage Protection application is sufficient. · Cycle by Cycle Current Limit: 1.3A The over output voltage protection is equipped in AP3033, which protects the IC under open load condition. The AP3033 includes UVLO, soft-start, standby · · · High Frequency PWM Dimming Built-in Soft-start Built-in Thermal Shutdown Function mode, current limit and OTSD to protect the circuit. · Under Voltage Lockout The AP3033 is available in standard TSOT-23-6 pack- age. Applications · 7' to 10' LCD Panels · Digital Photo Frame · GPS Receiver · Netbook · PDVD Jan. 2010 Rev. 1. 0 TSOT-23-6 Figure 1. Package Type of AP3033 BCD Semiconductor Manufacturing Limited 1 WHITE LED STEP-UP CONVERTER Pin Configuration KT Package (TSOT-23-6) Pin 1 Dot by Marking SW GND FB 1 2 3 6 VIN 5 OV 4 CTRL P...