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Product attributes Property Value
Manufacturer Power Integrations
Product Series TOPSwitch®-JX
Packaging Cut Tape (CT) | Tape & Reel (TR)
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 78%
Frequency - Switching 66kHz, 132kHz
Power (Watts) 65 W
Fault Protection Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
Control Features Frequency Control
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad
Supplier Device Package 12-ESOP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The TOP267KG-TL from Power Integrations is a TOPSwitch®-JX offline switcher built on an isolated flyback topology with an integrated power switch. It provides a 725V breakdown rating and delivers up to 65 W at 66kHz or 132kHz switching with 78% maximum duty cycle. Fault protection covers current limiting, over load, over temperature, over voltage, and short circuit. The 12-BESOP package with exposed pad supports junction temperatures from -40°C to 150°C.

  • Integrated 725V MOSFET reduces external parts in isolated flyback designs.
  • 65 W output suits mid-power offline adapters.
  • Selectable 66kHz/132kHz frequency control for flexibility.
  • Comprehensive fault protection (current limiting, OLP, OTP, OVP, SCP) improves reliability.
  • Wide -40°C to 150°C junction range for demanding applications.

Mid-Power AC-DC Adapters

The TOP267KG-TL's 65 W rating and integrated 725V MOSFET make it ideal for isolated flyback adapters with frequency control.

Consumer Electronics Supplies

Galvanic isolation and short-circuit protection support reliable offline power for set-top boxes and monitors.

Industrial Power Modules

A -40°C to 150°C junction range and comprehensive fault protection suit industrial flyback designs.

Networking Equipment

Dual 66kHz/132kHz switching and 78% duty cycle enable efficient isolated conversion in compact 12-BESOP packages.

Q: What topology does the TOP267KG-TL use?
A: It is an isolated flyback offline switcher in the TOPSwitch®-JX series.
Q: Does it have an integrated switch?
A: Yes, the power MOSFET is integrated.
Q: What is the breakdown voltage?
A: 725V Vds rating.
Q: What power does it deliver?
A: Up to 65 W.
Q: What switching frequency does it support?
A: 66kHz or 132kHz with 78% max duty cycle.
Q: What protections are included?
A: Current limiting, over load, over temperature, over voltage, and short circuit.
Base Product Number : TOP267KG
12-BESOP 65 W 725V AC-DC Flyback Converter Integrated Switch Isolated Offline Switcher TOPSwitch-JX
Q: What topology does the TOP267KG-TL use?
A: It is an isolated flyback offline switcher in the TOPSwitch®-JX series.
Q: Does it have an integrated switch?
A: Yes, the power MOSFET is integrated.
Q: What is the breakdown voltage?
A: 725V Vds rating.
Q: What power does it deliver?
A: Up to 65 W.
Q: What switching frequency does it support?
A: 66kHz or 132kHz with 78% max duty cycle.
Q: What protections are included?
A: Current limiting, over load, over temperature, over voltage, and short circuit.