TOP268KG-TL

AC DC Converters, Offline Switchers Overview

The TOP268KG-TL is an integrated offline switcher from the TopSwitch-JX family, designed for AC/DC conversion in power supplies up to 75W. It combines a high-voltage MOSFET with a current-mode controller and includes EcoSmart technology for ultra-low no-load power consumption. The device operates at a switching frequency of 132 kHz and features a wide input voltage range. It offers comprehensive protection mechanisms including cycle-by-cycle current limiting, overvoltage protection, and thermal shutdown.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage power MOSFET with a current-mode controller for compact design
• Features EcoSmart technology to achieve ultra-low no-load power consumption
• Includes built-in protection against overvoltage, thermal overload, and short circuits

AC DC Converters, Offline Switchers Applications

• Adapters and chargers for consumer electronics
• General-purpose AC/DC power supplies
• Industrial control systems requiring isolated DC power

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'KG-TL' to confirm the tape-and-reel packaging format and lead-free status. Ensure compatibility with the required output power specifications, as this variant supports up to 75W. Confirm RoHS compliance documentation is available for regulatory requirements. Check for any recent process change notifications regarding marking or packing updates.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring a single-chip solution for low-to-medium power applications. It is suitable where space constraints favor an integrated package over discrete components. Consider the 132 kHz switching frequency for balancing efficiency and EMI performance. Verify that the thermal management strategy aligns with the device's junction temperature limits under maximum load conditions.

AC DC Converters, Offline Switchers Part Context

This part belongs to the TopSwitch-JX series by Power Integrations, which are known for combining power and control functions into a single IC. The series is widely used in cost-sensitive and space-constrained power supply designs. The TOP268 variant specifically targets higher power outputs within the family, offering enhanced performance compared to lower-numbered counterparts.

AC DC Converters, Offline Switchers Replacement Considerations

Direct replacements within the same family include TOP264KG-TL, TOP265KG-TL, and TOP266KG-TL, depending on the required power level. Cross-family migration may require significant redesign due to differences in pinout and control architecture.