MP4410 4.5-36V Synchronous Step-Down Converter QFN10

MP4410 4.5-36V Synchronous Step-Down Converter QFN10

Key Specifications

Features

• 20μA Quiescent Current
• Wide 4.5V to 36V Operating Range
• 42V Integrated MOSFETs with 0.7Ω and 2.25Ω Ron
• Programmable Switching Frequency
• Stable with Ceramic Output Capacitors
• Low Output Ripple
• Programmable Soft-Start
• Adjustable Input UVLO Hysteresis
• Precision Peak Current Limit without Current-Sensing Resistor
• Programmable Peak Current Limit

Applications

• 4mA to 20mA Current Loops
• Automotive Systems
• Industrial Power Systems
• Distributed Power Systems

Design Notes

• The step-down topology needs an inductor and output capacitor sized for the ripple at the switching frequency, not just the DC load.
• Keep the input loop short — high di/dt at the switch node sets conducted EMI.
• Power switches are integrated, so the thermal path is the PCB copper under the pad.
• AEC-Q100 qualification suits this part to automotive rails.
• Package QFN10 — check the land pattern in the datasheet before layout.

Common Questions