PWM控制器
  • 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
  • SC1176
  • 双同步电压模式控制器以及电流共享电路
Semtech SC1175

Semtech SC1175

低功耗双同步DC-DC控制器和电流共享电路

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The SC1175 is a versatile 2 phase, synchronous, voltage mode PWM controller that may be used in two distinct ways. First, the SC1175 is ideal for applications where point of use output power exceeds any single input power budget. Alternatively, the SC1175 can be used as a dual switcher.

Features


  • 300 kHz fixed frequency operation
  • Soft start and enable function
  • Power-good output provided
  • Over-current protection with 50% fold-back
  • Phase-shifted switchers minimize ripple
  • High-efficiency operation, >90%
  • Programmable output(s) as low as 1.25 V
  • Industrial temperature range
  • 20-pin SOIC or TSSOP package
  • Two-Phase, Current-Sharing Controller
  • Flexible, same or separate VINProgrammable current sharing
  • Combined current limit with fold-back
  • 2 phases operating opposed for ripple reduction
  • Thermal distribution via multi-phase output
  • Two Independent PWM Controllers
  • Flexible, same or separate VIN
  • Independent control for each channel
  • Independent and separate current limit
  • 2 phases operating opposed for ripple reduction (if same IN used)

Applications


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

Packaging

SOIC-20, TSSOP-20

Order Codes

  • SC1175CSWTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC1175TSTR: Package Minimum Tape & Reel Only
  • SC1175TSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
 
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