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BUY TNY277P https://www.utsource.net/itm/p/1918251.html
Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range
Description: The TNY277P is a high performance off-line switcher integrated circuit with minimal external components. It is designed for use in low power off-line switch mode power supplies. Features: Low start-up current Low operating current Internal start-up and current limit Internal thermal shutdown Internal soft start Internal frequency compensation Internal oscillator Internal overvoltage protection Internal undervoltage lockout Internal short circuit protection Applications: Low power off-line switch mode power supplies Battery powered equipment Adaptors Chargers LED lighting (For reference only)