PWM Controllers
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    • Simple PWM Boost Controller with Input Disconnect FET Drive
  • SC418
    • DC-DC Buck Controller with Programmable LDO
  • SC419
    • Single Phase DC-DC Converter with Integrated Boost Diode
  • SC454
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  • SC824
    • Single-cell Li-Ion Charger Tri-Mode with Timer and NTC
  • SX8650
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  • SC908
    • Power Management IC for Single-Cell Li-Ion Devices
  • SC824
    • Single-cell Li-Ion Charger Tri-Mode with Timer and NTC
  • SCPAS1
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
  • SDH15K
    • High Density, High Voltage, Standard Recovery Rectifier Assembly
Semtech SC1480

Semtech SC1480

DDR Memory Power Supply Controller

The SC1480 is a single output, constant on-time synchronous-buck, pseudo-fixed frequency, PWM controller intended for use in notebook computers and other battery operated portable devices.

Features

  • Constant on-time for fast dynamic response
  • Programmable VOUT based on external reference
  • VIN range = 1.8V – 25V
  • DC current sense using low-side RDS(ON) sensing or sense resistor
  • 3mA reference output buffer
  • Low power S3 state
  • Resistor programmable frequency
  • Cycle-by-cycle current limit
  • Digital soft start
  • Output current source-sink capability
  • Overvoltage/under-voltage fault protection and PGOOD output
  • Under 10uA typical shutdown current
  • Low quiescent power dissipation
  • 14-Pin TSSOP package. Also available in Lead-free package which is fully WEEE and RoHS compliant
  • Industrial temperature range
  • Integrated gate drivers with soft switching
  • Efficiency >90%

Applications

 

Order Codes

  • SC1480ITSTR: Package Minimum Tape & Reel Only
  • SC1480ITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only