BCD Semiconductor Manufacturing Limited AP3030
The AP3030 is an inductor-based DC/DC converter designed to drive up to eight white LEDs in series or 2 rows of LEDs with 5 for each in parallel for backlight. The AP3030 is available in standard SOT-23-6 and TSOT-23-6 packages.| Part No. | AP3030 |
|---|---|
| Datasheet | AP3030 Download |
| Manufacturer |  BCD Semiconductor Manufacturing Limited |
| Description | WHITE LED STEP-UP CONVERTER |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Only one feedback resistor is needed to control the LED current and obtain required brightness. A constant frequency 1.2MHz PWM control scheme is employed in this IC, which means tiny external components can be used. Specifically, 1mm tall inductor and 0.22µF output capacitor for a typical application are sufficient. Additionally, the schottky diode in boost circuit is integrated on this chip. AP3030 also provides a disable pin to ease its use for different systems. The output over-voltage protection is implemented in AP3030. When any LED is broken or in other abnormal conditions, the output voltage will be clamped. AP3030FEATURES
●●
●
●
●
●
● Inherently Uniform LED Current High Efficiency up to 84% No Need for External Schottky Diode Output Over-Voltage Protection (OVP) Fixed 1.2MHz Switching Frequency Uses Tiny 1mm Tall Inductor Requires Only 0.22µF Output Capacitor
APPLICATIONS
●●
●
●
● Cellular Phones Digital Cameras LCD modules GPS Receivers PDAs, Handheld Computers SOT-23-6 TSOT-23-6 Figure 1.
