MP4248 3.6-36V Buck-Boost Converter QFN-20

MP4248 3.6-36V Buck-Boost Converter QFN-20

Key Specifications

Features

• IEC62368-1 Certified
• 140W Buck-Boost Converter with Integrated Low-Side MOSFETs (LS-FETs)
• Integrated Gate Driver for High-Side MOSFETs (HS-FETs)
• Configurable Input UVLO
• 3.6V to 36V Start-Up Input Voltage Range
• 1V to 36V Output Voltage (VOUT) Range with 1% Accuracy
• Supports 2.8V Falling VIN When VOUT > 3.5V
• Up to 98% Peak Efficiency
• I2C-Configurable VREF Range: 0.1V to 2.147V with 1mV Resolution
• Accurate Output CC Current Limit: ±5%, Supports High-Side (HS) Current Sense

Applications

• USB Type-C and USB Power Delivery (PD)
• USB Type-C PD Monitors and Docking Stations
• USB Type-C, USB Type-A Communication Interface, Car Charger

Design Notes

• Buck-boost operation keeps the output regulated either side of the input, which costs efficiency compared with a pure buck at the same rating.
• Power switches are integrated, so the thermal path is the PCB copper under the pad.
• Package QFN-20 — check the land pattern in the datasheet before layout.

Common Questions