Monolithic Power Systems NB618

Description

The NB618 is a high frequency synchronous rectified step-down switch mode converter with a built in internal high side power MOSFET. It offers a very compact solution to achieve 7A continuous output current over a wide input, load and line range.

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

Full protection features include OCP and thermal shut down.

The NB618 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package.

Features

• -Only 9 External Components
• -Wide 4.5V to 25V Operating Input Range
• -7A Output Current
• -Internal High Side Power MOSFET
• -Fixed 700KHz Switching Frequency
• -Sync from 300KHz to 2MHz External Clock
• -Internal Compensation
• -Power Good Output
• -Integrated Bootstrap Diode
• -OCP Protection and Thermal Shutdown
• -Output Adjustable from 0.8V to 15V
• -Available in 3mm x 4mm 14-pin QFN package
• REMARK:L1=1.5uH or 1.4uH

Typical applications

• Personal Video Recorders
• Distributed Power Systems
• Notebook Systems and I/O Power
• Flat Panel Television and Monitors
• Networking Systems
• Digital Set Top Boxes

More information

• Datasheet
• IC product information