Features

3.5A continuous output current capability

Up to 98%duty

4.6V to 33V wide operating input range

Integrated 40V,80mΩhigh side and 40V,50mΩlow side power MOSFET switches

Up to 97%efficiency

CV/CC Mode control(Constant voltage and constant current).Internal Soft-Start limits the inrush current at turn-on

Fixed 160KHz Switching Frequency

Internal compensation to save external components

Pulse Skipping Mode to Achieve High Light Load Efficiency

Frequency jittering to ease EMI Issue

Peak Current-Mode ControlCycle-by-Cycle Over Current Protection

Input over-voltage protection

Output Over-Voltage Protection

Output short protection

Over-Temperature Protection

Available in ESOP8 Package

Applications

9-V,12-V and 24-V Distributed Power Systems

Consumer Applications Such as Home Appliances,Set-Top Boxes,CPE Equipment,LCD Displays,Peripherals,and Battery Chargers

Industrial and Car Entertainment Power Supplies

Description

The PL82051 is a monolithic synchronous buck regulator with wide operating input voltage range from 4.6 to 33V.Current mode control with internal slope compensation is implemented to reduce component count.PL82051 also features a light load pulse skipping mode,which allows for a power loss reduction from the input power supply to the system at light loading.Frequency spread spectrum operation is introduced for EMI reduction.A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.