Description

The MP2303A is a monolithic synchronous buck regulator. The device integrates a 150mΩ high-side MOSFET and a 80mΩ low-side MOSFET that provide 3A continuous load current over a wide operating input voltage of 4.7V to 28V. Current mode control provides fast transient response and cycle-by-cycle current limit.

An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supply current drops to lower than 1μA. This device, available in an 8-pin SOIC and PDIP-8 packages, provides a very compact system solution with minimal reliance on external components.

FEATURES
 3A Output Current
 Wide 4.7V to 28V Operating Input Range
 Integrated MOSFET Switches
 Output Adjustable from 0.80V to 25V
 Up to 95% Efficiency
 Programmable Soft-Start
 Stable with Low ESR Ceramic Output Capacitors
 Fixed 360kHz Frequency
 Cycle-by-Cycle Over Current Protection
 Input Under Voltage Lockout
 Available in thermally enhanced 8-Pin SOIC and PDIP-8 packages

APPLICATIONS
 Distributed Power Systems
 Pre-Regulator for Linear Regulators
 Notebook Computers

MP2303A – 3A, 28V, 360kHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER