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 SC2449

Semtech SC2449

Bi-Phase/Dual Controller

The SC2449 can be configured as a dual converter or a bi-phase converter for high current applications. The part is designed for point of use power supplies with 8.5-28V nominal backplane power sources. Multiple supplies can be synchronized together to prevent low frequency harmonics on the backplane.

Features


  • Selectable dual-input or bi-phase operations
  • Direct drive for N-channel MOSFETs
  • Under-voltage lockout
  • Synchronization to external clock
  • Multi-converter synchronization
  • Soft start
  • Fast transient response
  • Max. duty cycle 45%
  • Output over-voltage protection
  • Thermal shutdown
  • 28-Pin SO lead free package available. Fully WEEE and RoHS compliant

Applications


  • Power supplies for advanced telecom/datacom
  • SO IP, Ethernet, and PABX power supllies

Packaging

SOIC-28-EDP

Order Codes

  • SC2449ISWTR: Package Minimum Tape & Reel Only
  • SC2449ISWTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only