MPM3901-AEC1 4.5-60V, 1A Synchronous Step-Down Power Module QFN-19

MPM3901-AEC1 4.5-60V, 1A Synchronous Step-Down Power Module QFN-19

The MPM3901 is an easy-to-use, fully integrated, fixed-frequency, synchronous step- down power module with a built-in inductor and power MOSFETs.

Key Specifications

Features

• Increases Battery Life o 2μA Low Shutdown Mode Current o 40μA Quiescent Current (IQ) o Selectable AAM Mode or FCCM at Light Loads
• High Performance for Improved Thermals: o 250mΩ/45mΩ Internal Power MOSFETs o Available in a QFN-19 (4mmx6mm) Package with Wettable Flanks
• Optimized for EMC/EMI o Integrated Power Inductor o Configurable fSW Up to 2.2MHz o CISPR 25 Class 5 Compliant
• Functional Safety System Design Capability o MPSafe™-Compatible: Functional Safety Supporting Document Available

Typical Application Circuit

Applications

• Automotive Infotainment
• Automotive Lamps and LEDs

Design Notes

• Place the input capacitor across the module pins, not at the far end of a trace — the module's internal loop assumes a local source.
• Heat leaves through the module base and pins; the host board copper is part of the thermal solution.
• Measure output ripple with a short ground spring at the output pins; a long scope ground lead picks up switching noise that is not really there.
• For isolated variants, respect the creepage and clearance the safety standard demands across the isolation barrier.

Common Questions