LNK363PG

AC DC Converters, Offline Switchers Overview

The LNK363PG is an energy-efficient, low-power off-line switcher IC from the LinkSwitch-XT family by Power Integrations. It integrates a 700 V power MOSFET and control circuitry into a single package to simplify flyback converter design. The device supports universal AC input (85 VAC to 265 VAC) and delivers up to 4.7 W at 85–265 VAC or 7.5 W at 230 VAC. It operates with a switching frequency of 140 kHz and utilizes proprietary Clampless technology for transformer construction.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage power MOSFET and controller in a compact DIP-8B package
• Eliminates optocouplers and bias windings through self-biased supply architecture
• Features hysteretic thermal shutdown with automatic recovery for enhanced reliability
• Includes fully integrated auto-restart protection against short circuits and open loops

AC DC Converters, Offline Switchers Applications

• Adapters and chargers for mobile phones and tablets
• Standby power supplies for consumer electronics
• Small appliance power supplies
• Battery chargers for portable devices

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'PG' corresponds to the PDIP-B package variant when ordering. Confirm RoHS compliance status via the manufacturer's current datasheet. Ensure the supplier provides genuine Power Integrations components to avoid counterfeit risks. Check for any recent product change notices affecting pinout or electrical characteristics before finalizing procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring minimal external components and high reliability in low-power applications. The Clampless design reduces system cost by simplifying transformer requirements. Consider the 140 kHz switching frequency for EMI management and efficiency trade-offs. Verify that the target output power does not exceed the specified limits under worst-case operating conditions.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-XT family, designed for cost-sensitive, high-volume offline power supplies. It succeeds earlier LinkSwitch generations by offering improved efficiency and simplified design through integrated features. The family targets applications where board space and component count are critical constraints.

AC DC Converters, Offline Switchers Replacement Considerations

Direct replacements within the same family include LNK362P and LNK364P, subject to power level and package compatibility verification. Cross-family substitution requires careful evaluation of switching frequency and voltage ratings.