DESCRIPTION

The MP4470/4470A 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 MP4470/4470A operates at high efficiency over a wide output current load range.

FEATURES

• Wide 4.5V-to-36V Operating Input Range

• Guaranteed 5A, Continuous Output Current

•Internal 40mΩHigh-Side, 20mΩLow-Side Power MOSFETs

•Proprietary Switching-Loss-Reduction Technology

• 1% Reference Voltage

• Programmable Soft-Start Time

• Low Drop-out Mode

• 200kHz-to-1MHz Switching Frequency

• SCP, OCP, OVP Latch(MP4470 only), UVP, and Thermal Shutdown

• Output Adjustable from 0.8V to 0.9×VIN

• Available in a 3×4mm 20-pin QFN Package