Diodes Incorporated
SOT26

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SOT26-Chip-Image.png
TSOT26

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

TSOT26.png
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AP3019A

White LED Step-Up Converter for Small Panel with Schottky Integrated

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Description

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.

Application(s)

  • Cellular Phones
  • Digital Cameras
  • LCD modules
  • GPS Receivers
  • PDAs, Handheld Computers

Product Specifications

Product Parameters

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 Over-Current 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

Related Content

Packages

Technical Documents

SPICE Model

Calculators

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

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-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)
PCN-2366 2018-09-19 2018-12-19 Qualification of Additional Bill of Materials (BOM), Fab Source, A/T Site and Top Marking Change on Select Product
PCN-2312 2018-04-11 2018-07-11 Qualification of Additional Bill of Materials (BOM), Top Marking, and Fab Source for Select Products