Switching Regulators
  • SC4525D
  • 18V, 3A, 350kHz Step-Down Switching Regulator
  • SC4525C
  • 28V 3A Step-Down Switching Regulator
  • SC4524D
  • 18V 2A Step-Down Switching Regulator
  • SC4524C
  • 28V 2A Step-Down Switching Regulator
  • SC427
  • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC417
  • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC410
  • 3A, 24V EcoSpeed® Step-Down Regulator with LDO and Ultrasonic Power Save
  • SC403B
  • 6A EcoSpeed® Integrated FET Regulator with Programmable LDO
Semtech SC2643VX

Semtech SC2643VX

Combi-Sense™ Multi-Platform Multi-Phase PWM Controller

Features


  • VRD/VRM 10.X, VRM 9.X, and K-8 compliant
  • Core voltage set point accuracy 0.5%
  • Combi-Sense™ current-mode control
  • Intrinsic phase current matching
  • Fast transient responses
  • Active droop with temperature compensation to meet load line slope
  • Support VID-on-fly with 5-bit or 6-bit VID
  • Enable function for power sequencing
  • Cycle-by-cycle peak current limit
  • Intelligent over-current shut-down
  • Over-voltage protection when using Semtech Combi-Sense™ driver
  • Under-voltage protection built in
  • External programmable soft-start
  • Externally programmable switching frequency (up to 2.8 MHz output voltage ripple frequency)
  • 2-phase, 3-phase, or 4-phase configurations
  • 24-pin SOIC or TSSOP package

Applications


  • Voltage regulator VRD/VRM 10.X
  • Voltage regulator VRM 9.X
  • Voltage regulator K-8
  • High-current, low-voltage step-down DC/DC converters

Packaging

TSSOP-24

Order Codes

  • SC2643VXTSTR: Package Minimum Tape & Reel Only
  • SC2643VXTSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only