A synchronous rectified step-down converter, also known as a synchronous buck converter, is a type of DC-DC (Direct Current to Direct Current) converter commonly used in power electronics. It is designed to efficiently step down a higher voltage to a lower voltage while minimizing power losses.
The synchronous rectified step-down converter typically consists of a high-side MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), a low-side MOSFET, an inductor, and a diode. The operation of the converter involves switching the MOSFETs to control the flow of current through the inductor, thus stepping down the voltage.
Part Number: MP1482
Function: 2A 18V Synchronous Rectified Step-Down Converter
Package: SOP 8 Pin Type
Manufacturer: Monolithic Power Systems ( https://www.monolithicpower.com/ )
Images:
Description
The MP1482 is a monolithic synchronous buck regulator. The device integrates two 130mΩ MOSFETs, and provides 2A of continuous load current over a wide 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 to 1μA.
Pinouts
Features
1. Wide 4.75V to 18V Operating Input Range
2. Integrated 130mΩ Power MOSFET Switches
3. Output Adjustable from 0.923V to 15V
4. Up to 93% Efficiency
5. Programmable Soft-Start
6. Stable with Low ESR Ceramic Output Capacitors
7. Fixed 340kHz Frequency
8. Cycle-by-Cycle Over Current Protection
9. Input Under Voltage Lockout
Applications
1. Distributed Power Systems
2. Networking Systems
3. FPGA, DSP, ASIC Power Supplies
4. Green Electronics/ Appliances
5. Notebook Computers
MP1482 PDF Datasheet
