SC2647: Combi-Sense™ Multi-Platform Multi-Phase PWM Controller

The SC2647 provides microprocessor core voltage regulation solution up to 4 paralleled PWM channels. The solution can also be configured as 2, 3, or 4-phase form. Multi-phase buck regulator utilizes the phase-shift timing control to allow interleaved switching of the power switches.


Collapse All

Features

  • VRD/VRM 10.0, 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 with the SC1211VX
  • Under-voltage protection built in
  • External programmable soft-start
  • Externally-programmable switching frequency
  • 2-phase, 3-phase, or 4-phase configurations
  • 24-pin SOIC or TSSOP packages
  • This device is fully WEEE and RoHS Compliant

Diagrams

Typical Application Circuit

SC2647 - Typical Application Circuit

Click diagram to enlarge

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

SOIC-24, TSSOP-24

Order Codes

  • SC2647SWTR: Package Minimum Tape & Reel Only (SOIC-24)
  • SC2647TSTR: Package Minimum Tape & Reel Only (TSSOP-24)
  • SC2647TSTRT: RoHS Compliant, Package Minimum Tape & Reel Only (TSSOP-24)
Order Sample Button
Pb-Free/RoHS/WEEE Status

Related Documents

Datasheets