製品
MP28275

MP28275

NOT RECOMMENDED FOR NEW DESIGNS

7V, 5A, 1.1MHz Synchronous Step-down Converter

ALTERNATIVE PART

NRFND Datasheet

MP28275 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2145GD-Z

5.5V, 6A, 1.2MHz, High-Efficiency, 40μA I_QConstant On-Time Synchronous, Step-Down Switcher

Features & Benefits

Up to 6A Output Current
Wide 2.8V-to-5.5V OperatingInputRange
20mΩ and 12mΩ InternalPowerMOSFETs
40µA Quiescent Current
1.2MHz Fixed Switching Frequency
100% Duty Cycle in Dropout
1% Feedback Accuracy
External Mode Control
External VCON Control
Adjustable Output from 0.6V
1.5ms Internal SS Time with Pre-Bias Startup
Cycle-by-Cycle Over Current Protection
Short Circuit Protection with Hiccup Mode
Stable with Low-ESR Output Ceramic Capacitors
Thermal Shutdown
Available in a 2mm×3mm QFN Package
Output Discharge Function

… and many more!

概要

The MP28275 is a high frequency synchronous rectified step-down switch mode converter with built-in internal power MOSFETs. It offers a very compact solution to achieve 5A continuous output current with excellent load and line regulation. The MP28275 operates at high efficiency over a wide output current load range. Current mode operation provides fast transient response and eases loop stabilization. Full protection features include OCP and thermal shut down. The MP28275 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package.