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 SC2447

Semtech SC2447

Dual-Phase, Single or Dual Output Synchronous Step-Down Controller

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The SC2447 is a versatile high-frequency dual phase PWM step-down controller optimized for Philips and Renesas
DrMOS™.

Features


  • 2-Phase Step-down Controller optimized for Philips or Renesas DrMOS™
  • Out of Phase Operation for Low Input Current Ripple
  • Outputs Source and Sink Current
  • Fixed Frequency Peak Current-Mode Control
  • Lossless Inductor DCR Current Sensing
  • Optional Resistor Current-Sensing for Precise Current-Limit
  • Dual 30A Outputs or 2-Phase 60A Single Output Operation
  • Wide Input Voltage Range: 4.65V to 15V
  • Individual Closed-Loop Soft-Start, Overload Shutdown Timer and Enable
  • Output Voltage as Low as 0.5V
  • Starts into Pre-Bias Output
  • Tri-State PWM Output during Shutdown
  • Programmable Frequency Up to 1MHz Per Phase
  • External Synchronization
  • TSSOP-28 Lead-free Package. Fully WEEE and RoHS Compliant

Applications


  • Telecommunication Power Supplies
  • DDR Memory Power Supplies
  • Graphic Power Supplies
  • Servers and Base Stations

Packaging

TSSOP-28

Order Codes

  • SC2447TSTRT: Lead-Free, RoHS and WEEE Compliant, 2500 pcs.Tape & Reel
 
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