• SC1102
  • 同步电压模式控制器,用于分布式电源应用
  • SC1103
  • 异步电压模式PWM控制器,12 V输入。
  • SC1104A
  • Not Recommended For New Designs
  • SC1104B
  • 简单,同步电压模式PWM控制器
  • SC1109
  • 同步PWM控制器的双低压差稳压器控制器
  • SC1110
  • 接收器和源的直流/直流电源控制器终止应用程序
  • SC1116
  • 为DDR供应 Linear FET的线性控制器
  • SC1175
  • 低功耗双同步DC-DC控制器和电流共享电路
Semtech SC2677B

Semtech SC2677B



The SC2677B is a versatile 2 phase, synchronous, voltage mode PWM controller that can be used in two distinct ways. First, the SC2677B is ideal for applications where point of use output power exceeds any single input power budget. Alternatively, the SC2677B can be configured as a dual switcher. The SC2677B features a precise temperature compensated voltage reference, cycle-by-cycle peak current limit, under voltage lockout over current protection, and internal level-shifted high-side gate drive circuitry.


  • 300 kHz to 1 MHz externally programmable frequency operation
  • Soft start and enable function
  • Power-good output provided
  • Cycle-by-cycle peak current limit
  • Latch off for over-current protection
  • Phase-shifted switchers minimize ripple
  • High efficiency operation, > 90%
  • Programmable output(s) as low as 0.5 V
  • Industrial temperature range
  • Bias voltage as low as 4.5 V
  • Adjustable phase shift between channels
  • TSSOP-24 package
  • TSSOP-24 EDP package
  • Two Phase, Current Sharing Controller
    • Flexible, same or separate VIN
    • Programmable current sharing
    • Thermal distribution via multi-phase output


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



Order Codes

  • SC2677BITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC2677BTETRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
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