Monolithic Power Systems MP1497S

Description

The MP1497S is a high-frequency, synchronous, rectified, step-down switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve 3A continuous output current with excellent load and line regulation over a wide input supply range. The MP1497S has synchronous mode operation for higher efficiency over the output currentload range.

Current-mode operation provides a fast transient response and eases loop stabilization.

Protective features include over-current protection, thermal shutdown, and external SS control.

The MP1497S requires a minimal number of readily-available external Components and is available in a space-saving 8-pin TSOT23 package.

Features

• Wide 4.5V-to-16V Operating Input Range
• 120mΩ/50mΩ Low RDS(ON) Internal Power MOSFETs
• Proprietary Switching-Loss–Reduction Technique
• High-Efficiency Synchronous Mode Operation
• Fixed 500kHz Switching Frequency
• Can Synchronize to a 300kHz-to-2MHz External Clock
• Externally-Programmable Soft-Start
• OCP and Hiccup
• Thermal Shutdown
• Output Adjustable from 0.8V
• Available in an 8-pin TSOT-23 Package

Typical applications

• Notebook Computers and I/O Power
• Distributed Power Systems
• Digital Set-Top Boxes
• Flat-Panel Television and Monitors

More information

• Datasheet
• IC product information