Switching Regulators
  • SC195F
  • 3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
  • SC202F
  • 3.5MHz, 500mA Step-down Regulator with Integrated Inductor
  • SC21150
  • Tiny 1.2A Synchronous Buck Regulator
  • SC21152
  • Tiny 1.2A Synchronous Buck Regulator with Power Good
  • SC221
  • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
  • SC284AQ
  • Dual Channel 2.5MHz, 1.7A Synchronous Buck Regulator
  • TS13101
  • Galvanic Isolated Latching 60V Power Load Switch
  • TS30011
  • High Efficiency 1A Current-Mode Synchronous Buck DC/DC Converter, 1MHz
Semtech SC4520

Semtech SC4520

3A Step-Down Switching Regulator with Adjustable Switching Frequency

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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.


  • 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



Order Codes

  • SC4520SETRT: Lead-free, RoHS and WEEE compliant, 2500 pcs. Tape & Reel
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