PWM Controllers
  • SC1102
  • Synchronous Voltage-Mode Controller for Distributed Power-Supply Applications
  • SC1103
  • Asynchronous Voltage-Mode PWM Controller for 12 V Input
  • SC1104A
  • Not Recommended For New Designs
  • SC1104B
  • Simple, Synchronous Voltage-Mode PWM Controller
  • SC1109
  • Synchronous PWM Controller With Dual Low-Dropout Regulator Controllers
  • SC1110
  • Sink and Source DC/DC Controller For Termination Power Supply Applications
  • SC1116
  • Linear FET Controller for DDR Supplies
  • SC1175
  • Low-Power Dual Synchronous DC/DC Controller with Current-Sharing Circuitry
Semtech SC4510

Semtech SC4510

High-Performance Synchronous Buck Controller with Reference Tracking

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The SC4510 can be configured as a synchronous buck convertor capable of sourcing and sinking current from load without losing output regulation.


  • Synchronous buck operation with current sink or source without loss of regulation
  • Output can track internal or external reference
  • Buffered reference output from external reference
  • Combi-Sense™ mode lossless current sensing
  • 2.5 V to 16 V operation with 4.75 V minimum VCC
  • Direct drive for high-side N-channel MOSFETs with diode and capacitor bootstrap
  • Under-voltage lockout, soft start, enable, power-good functions
  • Fast transient response with external compensation
  • Current-mode control with transductance error amplifier
  • Programmable oscillator frequency with external sync
  • Thermal shutdown
  • Space-saving TSSOP-20 package


  • Externally referenced buck convertors
  • DDR memory terminators
  • Point of use power supplies



Order Codes

  • SC4510ITSTR: Package Minimum Tape & Reel Only
  • SC4510ITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
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