MP38900 4.5-16V, 10A Synchronous Step-down Converter QFN20

MP38900 4.5-16V, 10A Synchronous Step-down Converter QFN20

Key Specifications

Features

• Wide 4.5V to 16V Operating Input Range
• 10A Output Current
• Internal 27mΩ High-Side, 10mΩ Low-Side Power MOSFETs
• Proprietary Switching Loss Reduction Technique
• 1% Reference Voltage
• Programmable Soft Start Time
• Soft Shutdown (MP38900,)
• High-Z Shutdown (MP38900-B)
• Programmable Switching Frequency
• SCP, OCP, OVP, UVP Protection and Thermal Shutdown

Applications

• Notebook Systems and I/O Power
• Networking Systems
• Optical Communication 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.
• Package QFN20 — check the land pattern in the datasheet before layout.

Common Questions