TOP268VG

AC DC Converters, Offline Switchers Overview

The TOP268VG is an integrated off-line switcher from the TopSwitch-JX family, designed for highly efficient power supplies. It utilizes EcoSmart technology to achieve low no-load power consumption and high efficiency across the load range. The device operates with a fixed switching frequency of 132 kHz and supports flyback topology. It features a DIP-12 package for through-hole mounting. Key electrical parameters include a maximum input voltage of 265 VAC, a minimum input voltage of 85 VAC, and a breakdown voltage of 725 V. The unit weighs 1.480 g and operates within a temperature range of -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage switched current source, oscillator, PWM controller, and high-voltage MOSFET into a single monolithic chip.
• EcoSmart technology enables automatic cycle skipping at light loads to minimize no-load power consumption while maintaining high efficiency.
• Includes comprehensive protection features such as over-current protection, over-voltage protection, and thermal shutdown.

AC DC Converters, Offline Switchers Applications

• High-efficiency AC/DC converters
• Battery chargers
• General-purpose isolated power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'VG' corresponds to the eDIP-12 package variant when sourcing. Confirm that the intended design requires the 132 kHz fixed frequency operation associated with this series. Ensure compatibility with through-hole assembly processes given the package type. Cross-reference the manufacturer's official datasheet for the latest pinout configuration and absolute maximum ratings before finalizing the bill of materials.

AC DC Converters, Offline Switchers Selection Notes

Select the TOP268VG for designs requiring high efficiency and low standby power in medium-power applications. This component is suitable for flyback topologies where a fixed 132 kHz switching frequency is preferred for EMI management. Consider the DIP-12 package if through-hole mounting is required for mechanical stability or manufacturing constraints. Evaluate the 725 V breakdown voltage against the primary side stress requirements of the transformer design.

AC DC Converters, Offline Switchers Part Context

The TOP268VG belongs to the TopSwitch-JX family, which integrates power switching and control functions into a single IC. This family is characterized by its use of EcoSmart technology for enhanced efficiency. The device represents a solution for reducing component count and PCB area in offline power supply designs compared to discrete implementations.

AC DC Converters, Offline Switchers Replacement Considerations

TOP268KG-TL is a listed substitute part number within the same product family.