MP1484 Datasheet – Synchronous Buck Regulator ( PDF )

Part Number: MP1484, MP1484EN

Function: 3A, 18V, 340KHz Synchronous Rectified Step-Down Converter

Package: SOIC-8N Type

Manufacturer: Monolithic Power Systems


MP1484 datasheet


The MP1484 is a monolithic synchronous buck regulator. The device integrates top and bottom 85mΩ MOSFETS that provide 3A of continuous load current over a wide operating input voltage of 4.75V to 18V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on and in shutdown mode, the supply current drops below 1µA. The MP1484 is PIN compatible to the MP1482 2A/18V/Synchronous Step-Down Converter.

Block Diagram :



• 3A Continuous Output Current
• Wide 4.75V to 18V Operating Input Range
• Integrated 85mΩ Power MOSFET Switches
• Output Adjustable from 0.925V to 20V
• Up to 95% Efficiency
• Programmable Soft-Start
• Stable with Low ESR Ceramic Output Capacitors
• Fixed 340KHz Frequency
• Cycle-by-Cycle Over Current Protection
• Input Under Voltage Lockout
• Thermally Enhanced 8-Pin SOIC Package


• FPGA, ASIC, DSP Power Supplies
• Green Electronics/Appliances
• Notebook Computers

MP1484 Datasheet PDF Download

MP1484 pdf

Other data sheets are available within the file: MP-1484