AP3033 Datasheet, PDF (1/13 Pages) BCD Semiconductor Manufacturing Limited – WHITE LED STEP-UP CONVERTER

Preliminary Datasheet
WHITE LED STEP-UP CONVERTER
General Description
Features
AP3033
The AP3033 is an inductor-based DC/DC boost con- _{· Up to 92% Efficiency}
verter designed to drive LED arrays. 1.3A switching
(V_IN=9V, I_OUT=160mA)
current allows AP3033 to be used in different 7' to 10'
LCD panel backlights (3S8P LED arrays typically).
·
Up to 88% Efficiency
(V_IN=5V, I_OUT=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
· High Frequency PWM Dimming
The over output voltage protection is equipped in
AP3033, which protects the IC under open load condi-
tion. The AP3033 includes UVLO, soft-start, standby
·
·
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