Product Descriptions

The MP2259 is a monolithic integrated stepdown switch mode converter with an internal power MOSFET. It achieves 1A 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 MP2259 requires a minimum number of readily available standard external components. The MP2259 is available in TSOT23-6 and SOT23-6 packages.

Product Features

• 1A Output Current

• 0.5Ω Internal Power MOSFET Switch

• Stable with Low ESR Output Ceramic Capacitors

• Up to 92 percent Efficiency

• 0.1μA Shutdown Mode

• Fixed 1.4MHz Frequency

• Thermal Shutdown

• Cycle-by-Cycle Over Current Protection

• Wide 4.5V to 16V Operating Input Range

• Output Adjustable from 0.81V to 14V

• Available in TSOT23-6 and SOT23-6 Packages

Product Applications

• Hand Disk Drive

• xDSL Modems Cable

• Set-Top Box

Product Photos

For more product information, please download the PDF