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BUY TOP225YN https://www.utsource.net/itm/p/1110137.html
Three-terminal Off-line PWM Switch
Description: TOP225YN is a high-performance, off-line, fixed-frequency current-mode PWM controller IC with an integrated power MOSFET. Features: Low start-up current (typically 0.5mA) High-efficiency operation Low-power standby mode Internal soft-start Over-temperature protection Over-voltage protection Under-voltage lockout Over-current protection Short-circuit protection Internal slope compensation Low-cost, low-profile TO-220 package Applications: TOP225YN is suitable for a wide range of applications such as AC/DC adapters, battery chargers, and general-purpose power supplies. (For reference only)