Monolithic Power Systems MP2305S

Description

The MP2305S is a monolithic synchronous buck regulator. The device integrates a 175mΩ high-side MOSFET and a 115mΩ low-side MOSFET that provide 2A continuous load current over a wide operating input voltage of4.75V to 23V. Current mode control provides fast transient response and cycle-by-cycle current limit.

An adjustable soft-start prevents inrush current at turn-on. Shutdown mode drops the supply current to 1μA.

This device, available in an 8-pin SOIC package, provides a very compact system solution with minimal reliance on external components.

Features

• -2A Output Current
• -Wide 4.75V to 23V Operating Input Range
• -Integrated Power MOSFET Switches
• -Output Adjustable from 0.923V 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

Typical applications

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

More information

• Datasheet
• IC product information