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Semtech Corporation
SC4520 3A Step-Down Switching Regulator with Adjustable Switching Frequency

The SC4520 is a current mode switching regulator with an integrated switch and an adjustable frequency with enable function. The integrated switch allows for cost effective, low power solutions with a peak switch current of 3 amps. An adjustable high frequency of 100kHz to 600kHz provides for fast dynamic response and instantaneous duty cycle adjustment as the input varies, making the device ideal for CPE applications where the input is a wall plug power. Low shutdown current also makes the this device an excellent choice for portable applications where conserving battery life is of prime concern.

♦ Wide operating voltage range: 4.4V to 24V
♦ Integrated 3 Amp switch
♦ 100kHz to 600kHz adjustable frequency operation
♦ Current mode control
♦ Precision enable threshold
♦ SO-8 EDP package. Lead-free product, fully WEEE and RoHS compliant

♦ XDSL modems
♦ CPE equipment
♦ DC-DC point of load applications
♦ Portable equipment
♦ Digtial consumer electronics


other parts : SDC4520EVB  SPC4520SETRT  
SC4520 PDF


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