Monolithic Power Systems MP8715

Description

The MP8715 is a 500 kHz fixed-frequency PWM synchronous step-down regulator. MP8715 operates from a 4.5V to 21V input and generates an output voltage form 0.8V to VIN with 100% duty cycle operation.

The MP8715 integrates a 120mΩ high-side switch and a 50mΩ synchronous rectifier for high efficiency without an external Schottky diode. It offers a very compact solution to achieve 4A continuous output current over awide input supply range with excellent load and line regulation.

External soft start and power good indication meet flexible design requirement.

The MP8715 is available in a space saving 8- pin SOIC package with an exposed pad and 3mmx4mm 14-pin QFN package.

Features

• 4A Output Current
• Wide 4.5V to 21V Input Operation Range
• 100% Duty Cycle Support
• 120mΩ/50mΩ Internal Power MOSFET
• All Ceramic Capacitor Design
• Up to 95% Efficiency
• 500kHz Fixed Switching Frequency
• Adjustable Output from 0.8V to Vin
• External Soft-Start
• Frequency Synchronization Input
• Power OK Indicator
• Internal Compensation
• Over Current Hiccup and Thermal Protection
• Available in 8-pin SOIC Package with an Exposed Pad and 14-pin QFN3x4 package

Typical applications

• Point of Load Regulators
• Digital Set Top Boxes
• Network and Telecom Equipment
• μP/ASIC/DSP/FPGA Core and I/O Supplies
• Cable eMTAs
• Printers and LCD TVs

More information

• Datasheet
• IC product information