LNK305DG-TL

AC DC Converters, Offline Switchers Overview

The LNK305DG-TL is an AC/DC converter from the LinkSwitch-TN family by Power Integrations. It provides 175 mA output in MDCM and 280 mA in CCM. The device operates at a switching frequency of 66 kHz with a maximum duty cycle of 72%. It features a 700 V breakdown voltage and consumes 220 µA supply current. Operating temperature ranges from -40°C to +150°C TJ. The component utilizes Si technology and is housed in an SO-8C package.

AC DC Converters, Offline Switchers Feature Summary

• Fully integrated auto-restart protection for short-circuit and open-loop faults
• Lowest component count solution for buck converters
• Accurate current limit allowing use of low-cost off-the-shelf inductors

AC DC Converters, Offline Switchers Applications

• Cost-effective linear/cap dropper replacement
• Low cost buck converter solutions
• General industrial applications

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and thermal characteristics. Ensure compatibility with the target PCB footprint, specifically the SO-8C package dimensions. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement orders.

AC DC Converters, Offline Switchers Selection Notes

Select this part for designs requiring minimal external components and high integration. It is suitable for replacing linear regulators or capacitive droppers where efficiency and component count are critical. Consider the 66 kHz frequency for magnetic component sizing and the 700 V rating for input voltage handling capabilities.

AC DC Converters, Offline Switchers Part Context

This component belongs to the LinkSwitch-TN family, designed for low-power offline switcher applications. It integrates a high-voltage MOSFET with a controller in a single package. The series focuses on reducing system costs through simplified design and built-in fault protection mechanisms without requiring complex external circuitry.

AC DC Converters, Offline Switchers Replacement Considerations

Check LNK304DG-TL for lower current requirements (120 mA MDCM). Verify LNK305GN-TL for identical electrical performance but different packaging options.