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 SC453

Semtech SC453

Portable, VID Programmed Single Phase Power Supply Controller

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The SC453 IC is a single chip high-performance Hysteretic PWM controller. With its integrated SmartDriver™, it powers advanced graphics and core processors.


  • High speed hysteretic controller
  • Single phase operation
  • Selectable analog or VID controlled sleep setting
  • 6 bit VID programmable output
  • Integrated drivers with soft high side turn-on
  • Programmable soft-start
  • Programmable boot voltage
  • Programmable sleep voltage with sleep mode
  • Under-voltage lock out on VCCA
  • Over-voltage protection on CORE
  • Current limit protection on CORE
  • Thermal protection
  • Power good flag with blanking during VCORE changes
  • Automatic power save at light load
  • TSSOP-28 package


  • Low Power Notebook and Laptop Computers
  • Embedded Applications



Order Codes

  • SC453TSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
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