AP3019AUKTR-G1

LED Driver IC Overview

The AP3019AUKTR-G1 is a DC-DC regulator IC from Diodes Incorporated, designed for LED driver applications. It utilizes a step-up (boost) topology with an integrated internal switch and operates at a fixed switching frequency of 1.2MHz. The device supports PWM dimming control and delivers up to 550mA of switch current. It functions within an input voltage range of 2.5V to 16V and achieves efficiencies up to 84%. The component is housed in a SOT-23-6 package and operates across a temperature range of -40°C to 85°C.

LED Driver IC Feature Summary

• Integrates a Schottky diode and internal switch for compact design
• Regulates LED current via a single 200mV sense resistor
• Supports PWM dimming for brightness control

LED Driver IC Applications

• LED backlighting systems
• White LED step-up drivers

LED Driver IC Procurement Notes

Verify the specific suffix 'UK' against official Diodes Incorporated documentation to confirm pinout and package variations relative to other AP3019A variants. Ensure compatibility with system requirements for the 1.2MHz fixed frequency operation and SOT-23-6 footprint before finalizing procurement decisions.

LED Driver IC Selection Notes

Select this component for applications requiring a boost converter with integrated power switches and high efficiency. Consider the 1.2MHz switching frequency for passive component size reduction. Verify that the 550mA switch current rating meets the target LED string requirements and that the 2.5V to 16V input range aligns with the available supply voltage.

LED Driver IC Part Context

This part belongs to the AP3019A series of LED driver ICs manufactured by Diodes Incorporated. These devices are specifically engineered for white LED applications, offering a regulated boost solution with integrated power management features to simplify circuit design and reduce external component count.

LED Driver IC Replacement Considerations

Check for direct substitutes within the AP3019A family, such as AP3019AKTR-G1 or AP3019BKTR-G1, ensuring pin compatibility and electrical specifications match the original design requirements.