„ FEATURES

z 2A Output Current

z Wide 4.5V to 27V Operating Input Range

z Integrated 120mΩ Power MOSFET Switches

z Output Adjustable from 0.925V to 24V

z Up to 96% Efficiency

z Programmable Soft-Start

z Stable with Low ESR Ceramic Output Capacitors

z Fixed 400KHz Frequency

z Cycle-by-Cycle Over Current Protection

z Input Under Voltage Lockout

z 8-Pin SOP Package

„ TYPICAL APPLICATION

z Distributed Power Systems

z Networking Systems

z FPGA, DSP, ASIC Power Supplies

z Green Electronics/ Appliances

z Notebook Computers

„ GENERAL DESCRIPTION

The LSP5502 is a monolithic synchronous buck

regulator. The device integrates 120mΩ MOSFETS

that provide 2A continuous load current over a wide

operating input voltage of 4.5V to 27V. 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

below 1µA.

This device, available in an 8-pin SOP package,

provides a very compact system solution with minimal

reliance on external components.