Switching Regulators
  • SC4525D
    • 18V, 3A, 350kHz Step-Down Switching Regulator
  • SC4525C
    • 28V 3A Step-Down Switching Regulator
  • SC4524D
    • 18V 2A Step-Down Switching Regulator
  • SC4524C
    • 28V 2A Step-Down Switching Regulator
  • SC427
    • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC417
    • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC410
    • 3A, 24V EcoSpeed® Step-Down Regulator with LDO and Ultrasonic Power Save
  • SC403B
    • 6A EcoSpeed® Integrated FET Regulator with Programmable LDO
Semtech SC2443

Semtech SC2443

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

The SC2443 is a high-frequency dual synchronous step-down switching power supply controller. It provides out-of-phase high-current output gate drives to all N-channel MOSFET power stages.

Features


  • Wide input voltage range: 4.7V to 16V
  • 0.5V feedback voltage for low-voltage outputs
  • Programmable frequency up to 1 MHz per phase
  • 2-Phase synchronous continuous conduction mode for high efficiency step-down converters
  • Out-of-phase operation for low input current ripples
  • Output source and sink currents
  • Fixed frequency peak current-mode control
  • 75mV/-110mV maximum current sense voltage
  • Inductor DCR current-sensing for low-cost applications
  • Dual outputs or 2-phase single output operation
  • Excellent current sharing between individual phases
  • Individual soft-start, overload shutdown and enable
  • External reference input for DDR applications
  • External synchronization
  • Industrial temperature range
  • 4mm X 4mm X1mm 24-lead MLPQ package

Applications


  • Telecommunication power supplies
  • DDR memory power supplies
  • Graphic power supplies
  • Servers and base stations

Packaging

Order Codes

  • SC2443MLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape and Reel Only