Monolithic Power Systems MP1474S

Description

The MP1474S is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a compact solution to achieve a 2A continuous output current with excellent load and line regulation over a wide input-supply range. The MP1474S has synchronous-mode operation for higher efficiency over the output current-load range.

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

Full protection features include over-current protection (OCP) and thermal shutdown (TSD).

The MP1474S requires a minimal number of readily available, standard, external components and is available in a space-saving 8-pin TSOT23 package.

Features

• • Wide 4.5V to 16V Operating-Input Range
• -150mΩ/70mΩ Low RDS(ON) Internal Power MOSFETs
• -High-Efficiency Synchronous-Mode Operation
• -Fixed 500kHz Switching Frequency
• -Synchronizes from a 300kHz to 2MHz External Clock
• -Power-Save Mode at Light Load
• -Internal Soft-Start
• -Power Good Indicator
• -Over-Current Protection and Hiccup
• -Thermal Shutdown
• -Output Adjustable from 0.8V
• -Available in a 8-pin TSOT-23 Package

Typical applications

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

More information

• Datasheet
• IC product information