PWM Controllers
  • SC508A
    • EcoSpeed® DC-DC Buck Controller with Integrated LDO
  • SC508
    • EcoSpeed® DC-DC Buck Controller with Integrated LDO
  • SC493
    • EcoSpeed® Step-down Controller with I2C Interface
  • SC419
    • Single Phase DC-DC Converter with Integrated Boost Diode
  • SC418
    • EcoSpeed® DC-DC Buck Controller with Programmable LDO
  • SC4911
    • Bias/Primary Side PWM Controller with Ultra-Low Start-up Current
  • SC4910B
    • High-Performance Secondary Side Controller with Synchronous Rectifier
  • SC4910A
    • High-Performance Secondary Side Controller with Synchronous Rectifier
Semtech SC2677

Semtech SC2677

Dual Synchronous Voltage-Mode Controller with Current-Sharing Circuitry

Features


  • 300 kHz to 1 MHz externally-programmable frequency operation
  • Soft start and enable function
  • Power-good output provided
  • Under-voltage short-circuit protection
  • Phase-shifted switchers minimize ripple
  • High efficiency operation, >90%
  • Programmable output(s) as low as 0.5 V
  • Industrial temperature range
  • TSSOP-20 package
  • Bias voltage as low as 4.5 V
  • Adjustable phase shift between channels
  • 2-phase, current-sharing controller
    • Flexible, same or separate VIN
    • Programmable current sharing
    • Thermal distribution via multi-phase output

Applications


  • Graphics cards
  • Peripheral add-in cards
  • Dual-phase power supplies
  • Power supplies requiring two outputs

Packaging

TSSOP-20

Order Codes

  • SC2677TSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only