MPS MP2225 High-Efficiency, 5A, 18V, 500kHz Synchronous, Step-Down Converter

DESCRIPTION 

The MP2225 is a high-frequency, synchronous, rectified,   step-down,   switch-mode   converter   with  built-in  power  MOSFETs.  It  offers  a  very  compact solution to achieve a 5A output current with  excellent  load  and  line  regulation  over  a  wide   input   supply   range.   The   MP2225   has   synchronous    mode    operation    for    higher    efficiency over the output current load range. 

Current-mode  operation  provides  fast  transient  response and eases loop stabilization.

 Full   protection   features   include   over-current   protection and thermal shut down. 

 The  MP2225  requires  a  minimal  number  of  readily-available standard external components, and   is   available   in   a   space-saving   8-pin   TSOT23 package.

FEATURES

•    Wide 4.5V-to-18V Operating Input Range

•    Adjustable Output Voltage as low as 0.6V 

•    Low    47mΩ/18mΩ  RDS(ON) of Internal Power MOSFETs•    High Efficiency up to 97%

•    Fixed 500kHz Switching Frequency

•    Synchronizes from a 200kHz-to-2MHz External Clock

•    2.4ms Internal Soft-Start Time 

•    1% Reference Accuracy at Room Temperature 

•    Internal Power-save Mode

•    OCP with hiccup mode

•    Available in 8-pin TSOT23 APPLICATIONS 

•    Flat-Panel Television and Monitors

•    Notebook Systems and I/O Power

•    Digital Set-Top Boxes 

•    Distributed Power Systems