Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. TSOT26
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT26
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. TSOT26
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 AP3019A is an inductor-based DC/DC converter designed to drive up to eight white °Cs in series for backlight. Only one feedback resistor is needed to control the °C 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 is sufficient. Additionally, the Schottky diode in boost circuit is integrated on this chip. AP3019A also provides a disable pin to ease its use for different systems. The output over-voltage protection is implemented in AP3019A. When any °C is broken or in other abnormal conditions, the output voltage will be clamped.
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) |
1.2 MHz |
Efficiency (%) |
84 % |
Quiescent Current (µA) |
2.5 mA |
Standby Quiescent Current (µA) |
4 µA |
SW RDS(ON) |
N/A Ω |
Dimming |
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-2709 | 2025-01-07 | 2025-04-07 | Additional Wafer Source (GFAB), Die Revision, Data Sheet Change and Additional Bill of Materials (BOM) |
| PCN-2602 | 2023-01-31 | 2023-07-31 | Device End of Life (EOL) |
| PCN-2548 | 2021-10-08 | 2022-01-08 | Additional Wafer Source (JKFAB), New Bill of Materials (BOM) with PdCu Bond Wire, and Assembly/Test (A/T) Site (CAT) |
