Monolithic Power Systems MP9447

Description

The MP9447 is a fully-integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter. It offers a very compact solution to achieve a 5A, continuous-output current over a wide input-supply range with excellent load and line regulation. It also provides fast transient response and good stability for wide input-supply and load range. The MP9447 operates at high efficiency over a wide output current load range.Full protection features include SCP, OCP, UVP, and thermal shutdown.The MP9447 requires a minimal number of readily-available, standard, external components, and is available in a space-saving 3mm×4mm, 20-pin, QFN package

Features

• -Wide 4.5V-to-36V Operating Input Range
• -Guaranteed 5A, Continuous Output Current
• -Internal 65mΩ High-Side, 30mΩ Low-Side Power MOSFETs
• -Proprietary Switching-Loss-Reduction Technology
• -1.5% Reference Voltage
• -Programmable Soft-Start Time
• -Low Drop-out Mode
• -200kHz-to-650kHz Switching Frequency
• -SCP, OCP, UVP, and Thermal Shutdown
• -Output Adjustable from 0.8V to 0.9×VIN
• -Available in a 3×4mm 20-pin QFN Package

Typical applications

• USB Power Supplies
• General Consumer
• Power Supply for Chargers
• Cigarette Lighter Adapters

More information

• Datasheet
• IC product information