MP4541GN-Z

MP4541 is a high-efficiency, synchronous step-down converter with integrated power MOSFETs. The device provides 0.8A of output current (IOUT) in a buck topology from an input power supply of up to 80V. The MP4541 features constant-on-time (COT) control, which provides fast transient response and facilitates loop stabilization. The configurable operation frequency can be set between 100KHz and 1MHz via an external resistor. The device supports high-efficiency pulse-skip mode (PSM) while operating under light-load conditions. The valley current limit circuits protect against overload and short-circuit conditions. The MP4541 is available in an SOIC-8EP package. Applications include high-voltage battery packs, industrial power supplies and printer power boards.

• 8V to 80V input voltage range
• 1V to 30V output voltage range
• 90% maximum operation duty cycle
• 625mohm/265mohm internal power MOSFETs
• Constant-on-time (COT) control
• 100KHz to 1MHz configurable frequency
• Internal soft start and loop compensation
• Overcurrent protection (OCP), short-circuit protection (SCP) with hiccup mode
• High efficiency pulse-skip mode (PSM) under light-load conditions

Notes

MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.