EC3276-2.2A/32V Syn. Rectified Step-Down Converter

General description

The EC3276 is a monolithic synchronous buck regulator. The device integrates two 90mΩ MOSFETs, and provides 2.2A of continuous load current over a wide input voltage of  4.75V  to 32V.Current   mode control  provides fast transient  response  and cycle-by-cycle  current limit. An adjustable soft-start prevents inrush current at turn-on,and  in  shutdown mode  the  supply current drops to 1µA. This device,    available in an SOP-8(Exposed PAD)package, provides a  very compact solution with  minimal external components.


•      2.2A Output Current
•      Wide 4.75V to 32V Operating Input Range
•      Integrated 90mΩ Power MOSFET Switches
•      Output Adjustable from 0.923V to 30V
•      Up to 93% Efficiency
•      Programmable Soft-Start
•      Stable with Low ESR Ceramic Output Capacitors
•      Fixed 600KHz   Frequency
•      Cycle-by-Cycle Over Current Protection
•      Input Under Voltage Lockout


•     Distributed Power Systems
•     Networking Systems
•     FPGA, DSP, ASIC Power Supplies
•     Green Electronics/ Appliances
•     Notebook Computers

Pin Configurations

Ordering info

Typical Applications circuit