Switching Regulators
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  • SC4530
    • 30V, 300mA Output Micropower Step-Down Switching Regulator
  • SC403B
    • 6A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC402B
    • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC401B
    • 15A Integrated FET Regulator with Programmable LDO
  • SC284
    • Dual Channel 2.5MHz, 1.8A Synchronous Step-Down Regulator
  • SC2308A
    • 600kHz Step-Up Switching Regulator with 2.2A, 45V Switch
  • SC220
    • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
Semtech SC2643VX

Semtech SC2643VX

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

Obsolete - this device is no longer available. Datasheet is for information purposes only.

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