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BUY TNY279PN https://www.utsource.net/itm/p/1457019.html
Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range
Description: The TNY279PN is a low-cost, high-efficiency, off-line, fixed-frequency current-mode, PWM controller IC designed for flyback converters. Features: * Low start-up current: 0.5mA * Low operating current: 10mA * Internal soft-start * Internal leading-edge blanking * Internal frequency jitter * Over-voltage protection * Over-temperature protection Applications: * AC/DC adapters * Battery chargers * LED lighting * Telecom power supplies * Industrial power supplies (For reference only)