Typical Application for LTC3855 - Dual, Multiphase Synchronous DC/DC Controller with Differential Remote Sense

Reference Design using part LTC3855 by Analog Devices

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Manufacturer

Analog Devices
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Multi-Output Power Supplies

For End Products

  • Automotive Power Supply
  • Distributed Power System
  • Telecom System

Description

  • Typical Application for LTC3855 - Dual, Multiphase Synchronous DC/DC Controller with Differential Remote Sense. The LTC3855 is a dual Poly-Phase current mode synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages. It includes a high speed differential remote sense amplifier. The maximum current sense voltage is programmable for either 30mV, 50mV or 75mV, allowing the use of either the inductor DCR or a discrete sense resistor as the sensing element

Key Features

  • Conversion Type
    DC to DC
  • Output Voltage
    1.2|1.8 V
  • Output Current
    15@1.8V|15@1.2V A
  • Efficiency
    95 %

Featured Parts (8)

Featured Parts
Part Number Manufacturer Type Description
LTC3855IFE#TRPBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 850kHz 38-Pin TSSOP EP T/R Buy
LTC3855EUJ#PBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 850kHz 40-Pin QFN EP Tube Buy
LTC3855IFE#PBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 850kHz 38-Pin TSSOP EP Tube Buy
LTC3855EFE#TRPBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 850kHz 38-Pin TSSOP EP T/R Buy
LTC3855EFE#PBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 850kHz 38-Pin TSSOP EP Tube Buy
LTC3855EUJ#TRPBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 850kHz 40-Pin QFN EP T/R Buy
LTC3855IUJ#TRPBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 850kHz 40-Pin QFN EP T/R Buy
LTC3855IUJ#PBF Analog Devices DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 850kHz 40-Pin QFN EP Tube Buy

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