Monolithic Power Systems MP38873

Description

The MP38873 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 15A continuous output current over a wide input supply range with excellent load and line regulation.Current mode operation provides fast transient response and eases loop stabilization.Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.The MP38873 requires a minimum number of readily available standard external components and is available in a 20-pin 3mm x 4mm QFN package.The MP38873 is ideal for a wide range of applications including distributed power systems, pre-regulator for linear regulators, compact DC- DC regulators for PCB space limited platforms.

Features

• Wide 4.5V to 16V Operating Input Range
• 15A Output Current
• 25mΩ Internal Power MOSFET Switch
• Synchronous Gate Driver
• Synch from 300KHz to > 1MHz External Clock or 400KHz Fixed Switching Frequency
• Synch Output to Drive Another Regulator in Phase-Shift Operation
• Feedback Voltage Accuracy: 2%
• Programmable Soft-Start
• Startup Tracking
• EN and Power Good for Power Sequencing
• Cycle-by-Cycle Over Current Protection
• Thermal Shutdown
• Output Adjustable from 0.8V to 12V
• Stable with Low ESR Output Ceramic Capacitors
• Available in a 3mm x 4mm QFN Package

Typical applications

• Compact DC-DC Regulator for PCB Space Limited Platforms
• Pre-Regulator for Linear Regulators
• Distributed Power Systems

More information

• Datasheet
• IC product information