The LYT4213E2 is an integrated power switch from Power Integrations. It is a high-performance single-channel synchronous buck converter that helps provide power to various applications. It features a wide input voltage range (4.5-42 V), constant off-time current-mode control, high-efficiency operation (up to 95%) and a fully integrated low-side MOSFET. It is capable of converting an input voltage to a lower voltage output, up to 15 A continuous. It also has a fast response time, low EMI, programmable soft-start current limit, and automatic transition between DCM and CCM (discontinuous conduction mode and continuous conduction mode).