SC1480A: DDR and DDR Memory VTT Power Supply Controller


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Features

  • Compatible with DDR & DDR2 memory power requirements
  • Constant on-time for fast dynamic response
  • Programmable VOUT based on external reference
  • VIN range = 1.8 V – 25 V
  • DC current sense using low-side RDS(ON) sensing or sense resistor
  • 3 mA reference output buffer
  • Low-power S3 state
  • Resistor-programmable frequency
  • Cycle-by-cycle current limit
  • Digital soft start
  • Output current source-sink capability
  • Over-voltage/under-voltage fault protection and PGOOD output
  • Under 10 µA typical shutdown current
  • Low quiescent power dissipation
  • 14-lead TSSOP package
  • Industrial temperature range
  • Integrated gate drivers with soft switching
  • Efficiency >80%

Diagrams

Typical Application Circuit

SC1480A - Typical Application Circuit

Click diagram to enlarge

Applications

  • Notebook computers
  • CPU I/O supplies
  • Handheld terminals and PDAs
  • LCD monitors
  • Network power supplies

Packaging

TSSOP-14

Order Codes
  • SC1480AITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
Order Sample Button
Pb-Free/RoHS/WEEE Status

Related Documents

Datasheets