Products
Power Management
Semtech SC2643VX
Combi-Sense™ Multi-Platform Multi-Phase PWM Controller
Obsolete - this device is no longer available. Datasheet is for information purposes only.
Overview
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
Diagrams and Specs
Block Diagram
Click diagram to enlarge