Monolithic Power Systems MP2113

Description

The MP2113 is a fully integrated, internally compensated 1.5MHz fixed frequency PWM step-down converter with dynamic output voltage control. User can select two operation modes, forced PWM and asynchronous mode.Force PWM is ideal for high load operation while asynchronous mode improves efficiency at light load condition. Each mode has independent output level that can be set by the user to optimize the power efficiency. 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 MP2113 canprovide 1.5A of load current in forced PWM mode and 50mA in asynchronous mode. Both output voltage can be regulated to as low as0.6V.MP2113 integrates the high side switch, a synchronous rectifier for forced PWM mode and a Schottky diode for asynchronous mode operation. With peak current mode control and internal compensation, the MP2113 is stablewith ceramic capacitors and small inductors. Fault condition protection includes cycle-bycycle current limiting and thermal shutdown.MP2113 is available in the small 8-pin 2mmx3mm QFN package.

Features

• User Selectable Operation Mode: Forced
• PWM and Asynchronous Mode
• User Programmable Output Level for Each Operation Mode
• Dynamic Output Voltage Control
• Up to 1.5A Output Current for Forced PWM Mode, 50mA for Asynchronous Mode
• Internal Power MOSFET Switches and Schottky diode
• Stable with Low ESR Output Ceramic Capacitors
• Up to 95% Efficiency
• 1μA Shutdown Current.
• 1.5MHz Switching Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Short circuit protection
• Power-Good Output
• 2.7-6V Input Operation Range
• Output Adjustable from 0.6V to VIN
• Available in 8-pin 2x3mm QFN Packagetable2 - Suggested Inductors

Typical applications

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

More information

• Datasheet
• IC product information