General Description

The EC3284 is a monolithic synchronous buck regulator.

The device integrates two 90mΩ MOSFETs, and provides 3A of continuous load current over a wide input voltage of 4.75V to 23V.

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 SOP8(Exposed PAD)package, provides a very compact solution with minimal external components.

Features

● 3A Output Current
● Wide 4.75V to 23V Operating Input Range
● Integrated 90mΩ Power MOSFET Switches
● Output Adjustable from 0.923V to 20V
●Up to 93% Efficiency
● Programmable Soft-Start
● Stable with Low ESR Ceramic Output Capacitors
● Fixed 340KHz Frequency
● Cycle-by-Cycle Over Current Protection
● Input Under Voltage Lockout

Applications

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