DESCRIPTION

The MP2361 is a monolithic step-down switch mode converter with a built-in internal power

MOSFET. It achieves 2A 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 protections include cycle-by-cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 20µA of supply current. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup.

The MP2361 requires a minimum number of readily available standard external components.

FEATURES

• 2A Output Current with QFN Package

• 0.18Ω Internal Power MOSFET Switch

• Stable with Low ESR Output Ceramic Capacitors

• 90 Efficiency

• 20µA Shutdown Mode

• Fixed 1.4MHz Frequency

• Thermal Shutdown

• Cycle-by-Cycle Over Current Protection

• Wide 4.75V to 23V Operating Input Range

• Output Adjustable from 0.92V to 16V

• Programmable Under Voltage Lockout

• Available in 10-pin QFN (3mm x 3mm) and Tiny MSOP Packages

• Evaluation Board Available

APPLICATIONS

•Distributed Power Systems

•Battery Charger

•DSL Modems

• Pre-Regulator for Linear Regulators