TNY280 TinySwitch Off-Line Power Switcher IC DIP-8
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Prices updated: 13 Oct 2026
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About this product
The TNY280 is an off-line switching regulator IC from the TinySwitch family, used in isolated flyback AC-DC power supplies. It accepts 85-265 VAC input and suits compact power supply designs such as adapters and chargers.
Specifications
- Package
- DIP-8
- Input voltage
- 85 to 265 VAC
- Switching frequency
- 132 kHz
- Max duty cycle
- 65 %
- Operating temperature
- -40 C to +150 C (as listed)
- Listed application output
- 12 V, 750 mA, 36.5 W
Frequently asked questions
Can I connect it directly to 220 V mains?
It is an off-line device designed for an 85-265 VAC input, but a working mains design needs proper isolation, creepage spacing, fusing and safety testing. Follow the datasheet reference design rather than improvising.
What output voltage does the IC provide?
The IC does not set one fixed output voltage. The 12 V, 750 mA and 36.5 W in the listing reflect an application example; the actual output depends on the transformer, feedback network and output components.
