PWM Controllers
  • SC1102
  • Synchronous Voltage-Mode Controller for Distributed Power-Supply Applications
  • SC1103
  • Asynchronous Voltage-Mode PWM Controller for 12 V Input
  • SC1104A
  • Not Recommended For New Designs
  • SC1104B
  • Simple, Synchronous Voltage-Mode PWM Controller
  • SC1109
  • Synchronous PWM Controller With Dual Low-Dropout Regulator Controllers
  • SC1110
  • Sink and Source DC/DC Controller For Termination Power Supply Applications
  • SC1116
  • Linear FET Controller for DDR Supplies
  • SC1175
  • Low-Power Dual Synchronous DC/DC Controller with Current-Sharing Circuitry
Semtech SC2441

Semtech SC2441

Very Low Input Voltage 2-Phase Synchronous Step-Down Controller with Step-Up Converter

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Features


  • 2-phase synchronous step-down controller
    • 2-phase synchronous continuous conduction mode for high-efficiency step-down converters
    • Out-of-phase operation for low input current ripples
    • Operates up to 1 MHz per channel
    • Configurable dual outputs or 2-phase single-output operation with peak current-mode control
    • Excellent current sharing between phases
    • Wide input voltage range: 1.8 V to 15 V
    • Duty cycle up to 90%
    • 0.5 V feedback voltages for low-voltage outputs
    • Precision 50 mV current-limit threshold
    • Patented Combi-Sense™ technique for high SNR of current-sensing
    • Individual soft-start, overload shutdown and enable
  • Step-up regulator
    • Wide input voltage range: 1.8 V to 15 V
    • Operates at twice the individual channel frequency of the buck controllers
    • 0.3 V VCESAT switch at 1 A
    • Fixed frequency with current-mode control
  • Common features
    • External synchronization
    • Industrial temperature range
    • TSSOP-28 package

Applications


  • Low-voltage distributed DC-DC converters
  • Telecommunication power supplies
  • Servers and base stations

Packaging

TSSOP-28

Order Codes

  • SC2441ITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
 
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