Monolithic Power Systems MP9115

Description

The MP9115 is a fully integrated, internally compensated 1.2MHz fixed frequency PWM step-down converter. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) Battery, with an input range from 2.7V to 6V. The MP9115 can provide up to 2.5A of load current with output voltage as low as 0.8V. It can also operate at 100% duty cycle for low dropout applications.With peak current mode control and internal compensation, the MP9115 is stable with ceramic capacitors and small inductors. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.MP9115 is available in the small 10-pin 3mmx3mm TQFN package.

Features

• Output Adjustable from 0.8V to VIN
• Up to 91% Efficiency
• 100% Duty Cycle for Low DropoutApplications
• 1μA Shutdown Current
• 1.2MHz Fixed Switching Frequency
• 2.7V-6V Input Operation Range
• 3A Peak Output Current
• Stable with Low ESR Output Ceramic Capacitors
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Short circuit protection
• No reverse current of LS MOS for Pre-bias start up
• Available in 10-pin 3x3mm TQFN

Typical applications

• Smart Phones
• DVD+/-RW Drives
• Portable Instruments
• PDAs
• Digital Cameras

More information

• Datasheet
• IC product information