Power Integrations TOP268KG-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.18 | $2.18 |
| 15+ | $2.11 | $31.65 |
| 25+ | $2.06 | $51.50 |
| 50+ | $1.95 | $97.50 |
| 100+ | $1.72 | $172.00 |
| N+ | $0.34 | Price Inquiry |
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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) | 73 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 |
The Power Integrations TOP268KG-TL is a flyback offline switcher from the TOPSwitch®-JX series with an integrated power switch and 725V breakdown voltage. It delivers up to 73W at 66kHz or 132kHz switching with 78% max duty cycle. Protections include current limiting, over load, over temperature, over voltage, and short circuit. Housed in a 12-BESOP package rated -40°C to 150°C.
- Integrated switch and 725V breakdown simplify isolated flyback designs.
- Up to 73W output suits mid-power applications.
- Dual 66kHz/132kHz frequencies with frequency control aid design flexibility.
- Comprehensive protections (OL, OT, OV, SC, current limiting) boost reliability.
- -40°C to 150°C junction range suits harsh environments.
Isolated Flyback Power Supplies
The TOP268KG-TL is a flyback switcher with an integrated switch and 725V breakdown, suited to galvanically isolated offline designs up to 73W.
Mid-Power Adapters and Chargers
Delivering up to 73W, it fits mid-power isolated flyback applications requiring a robust integrated switch.
Frequency-Controlled Designs
Selectable 66kHz and 132kHz switching with frequency control supports optimization of transformer and EMI-related design tradeoffs.
Fault-Tolerant Systems
Current limiting, over load, over temperature, over voltage, and short circuit protections enhance reliability.
Demanding Thermal Environments
A -40°C to 150°C junction range supports use in harsh conditions.
- Q: What topology does the TOP268KG-TL use?
- A: It is a flyback offline switcher for isolated supplies.
- Q: Does it have an integrated switch?
- A: Yes, it integrates the power switch.
- Q: What is the breakdown voltage?
- A: 725V.
- Q: How much power can it deliver?
- A: Up to 73W.
- Q: What switching frequency does it use?
- A: 66kHz and 132kHz.
- Q: What protections are included?
- A: Current limiting, over load, over temperature, over voltage, and short circuit.
- Q: What topology does the TOP268KG-TL use?
- A: It is a flyback offline switcher for isolated supplies.
- Q: Does it have an integrated switch?
- A: Yes, it integrates the power switch.
- Q: What is the breakdown voltage?
- A: 725V.
- Q: How much power can it deliver?
- A: Up to 73W.
- Q: What switching frequency does it use?
- A: 66kHz and 132kHz.
- Q: What protections are included?
- A: Current limiting, over load, over temperature, over voltage, and short circuit.

TOP268KG-TL.pdf