High-efficiency step-down converters allows designers to program various parameters

Microchip Technology MIC24045, available from Mouser, is offered as a high-efficiency, I²C Programmable, 5A Synchronous Step-Down Converter with a 4.5V to 19V input voltage range. Designers can program various parameters such as output voltage, switching frequency, margining, soft-start slope, current limit values, and start-up delays via I²C. The MIC24045 also supports status information and extensive diagnostics through I²C. The device’s wide switching frequency adjustment range, valley current-mode control technique, high-performance error amplifier and external compensation provide a winning combination of high efficiency and small solution size. The device is housed in a thermally-efficient, 20-pin 3mm x 3mm FQFN package with an -40C to +125C operating junction temperature range. It is ideally suited for multiple-voltage rail application environments found in telecommunication and computing systems.