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
  • SC1175
  • 低功耗双同步DC-DC控制器和电流共享电路
Semtech SC2446

Semtech SC2446

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

加入关注列表

Features


  • 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
  • 75 mV/-110 mV maximum current-sense voltage
  • Synthesized MOSFET RDS(ON) current-sensing for low-cost applications
  • Optional resistor current-sensing for precise current limit
  • Dual outputs or 2-phase single output operation
  • Excellent current sharing between individual phases
  • Wide input voltage range: 4.7 V to 16 V
  • Individual soft-start, overload shutdown and enable
  • Duty cycle up to 88%
  • 0.5 V feedback voltage for low-voltage outputs
  • External reference input for DDR applications
  • Buffered VDDQ/2 output
  • Programmable frequency up to 1 MHz per phase
  • External synchronization
  • Industrial temperature range
  • 28-lead TSSOP-EDP package

Applications


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

Packaging

TSSOP-28-EDP

Order Codes

  • SC2446ITETRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC2446ITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
 
- Close -
Add Product to Watch List

Please login to the mySemtech member site to add products to your personal Watch List.

If you're not registered for mySemtech, please Register now. mySemtech member benefits include pre-filled forms for quick and easy online ordering, technical support, new product information and more.