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
  • SC21154
  • Tiny 1.2A Synchronous Buck Regulator with Programmable Soft Start
  • SC221
  • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
  • SC284A
  • Dual Channel 2.5MHz, 2.0A Synchronous Buck Regulator
  • SC284AQ
  • Dual Channel 2.5MHz, 1.7A Synchronous Buck Regulator
Semtech SC4519

Semtech SC4519

600kHz, 3A Step-Down Switching Regulator

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The SC4519 is a current mode switching regulator with an integrated switch, operating at 600kHz with separate sync and enable functions. The integrated switch allows for cost effective low power solutions (peak switch current 3 amps).


  • Integrated 3 Amp switch
  • 600 kHz frequency of operation
  • Current-mode controller
  • Synchronizable to higher frequency up to 1.2 MHz
  • 6 µA low shutdown current
  • SOIC-8L-EDP Lead-free package. This product is fully WEEE and RoHS compliant


  • XDSL modems
  • CPE equipment
  • DC-DC point-of-load applications
  • Portable equipment



Order Codes

  • SC4519STRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
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