NCP1015ST100T3G

The NCP1015ST100T3G from ON Semiconductor is a self-supplied monolithic switcher designed for low standby-power offline Switched-Mode Power Supplies (SMPS). It integrates a fixed-frequency current-mode controller and a 700V voltage MOSFET, housed in a SOT-223 package.

Key features include a switching frequency of 100 kHz, a maximum output current of 450 mA, and a maximum duty cycle of 72%. The device incorporates internal soft-start, frequency jittering for improved EMI, and auto-recovery internal output short-circuit protection. It operates within a supply voltage range of 8.1V to 10V and has a wide operating temperature range from -40°C to 150°C.

This switcher is suitable for applications such as low power AC-DC adapters for chargers and auxiliary power supplies for appliances and TVs. Its design allows for skip-cycle operation at low peak currents, minimizing acoustic noise and reducing standby power consumption. The Dynamic Self-Supply feature eliminates the need for an auxiliary winding.

The NCP1015ST100T3G is surface-mountable in a SOT-223 (TO-261) package, making it suitable for compact designs. It is supplied on a reel with a standard package quantity of 4000 units.