MP28251

MP28251

NOT RECOMMENDED FOR NEW DESIGNS

High Efficiency, 20V, 4A Synchronous Step-Down Converter with Low Rds on, SS and Low Power Mode

ALTERNATIVE PART

NRFND Datasheet

MP28251 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2384GG-Z

4.5 to 24V, 4A, Low I_Q, Synchronous Buck Converter

Features & Benefits

Wide 4.5V to 24V Operating Input Range
105μA Low Quiescent Current
4A Continuous Output Current
Adaptive COT Control for Fast Transient
DC Auto-Tune Loop
Low R_DS(ON) Internal Power MOSFETs
Proprietary Switching Loss Reduction Technique
Power Good (PG) Indication
Fixed 700kHz Switching Frequency
Stable with POSCAP and Ceramic Capacitors
Internal Soft Start (SS)
Output Discharge
OCP, OVP, UVP, and Thermal Shutdown with Auto-Retry
Available in a QFN-11 (2mmx2mm) Package
The MPL-AL6050 Inductor Series Matches Best Performance

… and many more!

Description

The MP28251 is a synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to achieve a 4A continuous output current over a wide input supply range with excellent load and line regulation. The MP28251 has synchronous mode operation for higher efficiency over the output current load range. Current-mode operation provides a fast transient response and eases loop stabilization. Full protection features include over-current protection and thermal shutdown. The MP28251 requires a minimal number of readily-available standard external components and is available in a space saving 2mm×3mm 14-pin QFN package.