Synchronous step-up/down 4-switch DC/DC converter
ELM631FA Synchronous Step-Up/Step-Down 4-Switch DC/DC Converter
The ELM631FA is a synchronous buck-boost converter that incorporates four switch transistors. It can continuously boost and buck over a wide range of input and output voltages. With peak current mode and fixed off-time control, it enables smooth voltage control in all modes: boost, buck-boost, and buck. It employs a current detection method based on the DC resistance of the coil, allowing for high-efficiency control without current sensing resistors. An external phase compensation circuit enables stable control under a wide range of operating conditions. It includes built-in features such as a soft-start circuit, maximum switch current limit, input voltage drop detection, overvoltage output detection, overload-output short protection, and overheat protection. The rich built-in features facilitate power system configuration, reduce the need for external components, and allow for a smaller footprint. The ELM631FA uses a 28-pin QFN package measuring 5mm x 5mm.
- Company：エルムテクノロジー
- Price：Other
