SC202AMLTRT

The SC202A is a high efficiency 500mA step-down regulator that includes an integrated inductor inside the package. The input voltage range makes it ideal for battery operated applications with space limitations. The SC202A also includes 15 programmable output voltage settings that can be selected using the four control pins, eliminating the need for external feedback resistors. The output voltage can be fixed to a single setting or dynamically switched between different levels. Pulling all four control pins low disables the output.The SC202A operates at a fixed 3.5MHz switching frequency in normal PWM (Pulse-Width Modulation) mode. A variable frequency PSAVE (power-save) mode is used to optimize efficiency at light loads for each output setting. Built-in hysteresis prevents chattering between the two modes.The SC202A provides several protection features. These include short circuit protection, over-temperature protection, under-voltage lockout, and soft-start to control in-rush current. These features, coupled with the small 2.5 x 3.0 x 1.0 (mm) package, make the SC202A a versatile device ideal for step-down regulation in products needing high efficiency and a small PCB footprint.