Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT26
White LED Step-Up Converter for Small Panel with Schottky Integrated
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The AP3036B is an inductor-based DC/DC converter designed to drive up to eight white LEDs in series for backlight. Only one feedback resistor is needed to control the LED current and obtain required brightness.
A constant frequency 1.0MHz 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 is sufficient. Additionally, the Schottky diode in boost circuit is integrated on this chip. The AP3036B also provides a disable pin to ease its use for different systems.
The output over-voltage protection is implemented in AP3036B. When any LED is broken or in other abnormal conditions, the output voltage will be clamped.
The AP3036B is available in standard SOT26 package.
AEC Qualified |
No |
|---|---|
Compliance (Only Automotive Supports PPAP) |
Standard |
Function |
Boost LED Driver |
MinimumInput Voltage (V) |
2.5 V |
MaximumInput Voltage (V) |
16 V |
Maximum Output Voltage (V) |
30 V |
Number of Regulated Output Channels |
1 |
Maximum Output Current per Channel |
40 mA |
Typical Overcurrent Protection Current |
550 mA |
Switching Frequency (MHz) |
1 MHz |
Efficiency (%) |
84 % |
Quiescent Current (µA) |
3.1 mA |
Standby Quiescent Current (µA) |
45 µA |
SW RDS(ON) |
N/A Ω |
Dimming |
High Frequency PWM and External DC |
OVP |
Yes |
Soft Start |
Yes |
VFB |
200 V |
OperatingTemperatureRange (°C) |
-40 to 85 °C |
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A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2770 | 2025-10-30 | 2025-10-30 | Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products |
| PCN-2709 | 2025-01-07 | 2025-04-07 | Additional Wafer Source (GFAB), Die Revision, Data Sheet Change and Additional Bill of Materials (BOM) |
| PCN-2603 | 2023-03-20 | 2023-06-20 | Qualified Additional Wafer Fab Source (SFAB2/JKFAB), Die Revision, Bill of Material |
