LTC3866 Current Mode Synchronous Controller

Linear Technology's current mode synchronous controller for sub-milliohm DCR sensing

Linear Technology LTC3866 Current Mode Synchronous Controller Linear Technology's LTC®3866 is a single phase current mode synchronous step-down switching regulator controller that drives all N-channel power MOSFET switches. It employs a unique architecture which enhances the signal-to-noise ratio of the current sense signal, allowing the use of a very low DC resistance power inductor to maximize the efficiency in high current applications. This feature also reduces the switching jitter commonly found in low DCR applications. The LTC3866 also includes a high speed remote sense differential amplifier, a programmable current sense limit that can be selected to 10 mV, 15 mV, 20 mV, 25 mV or 30 mV, and DCR temperature compensation to limit the maximum output current precisely over temperature.   LTC3866 Datasheet

  Features   Applications
  • Sub Milliohm DCR current sensing
  • High efficiency: up to 95%
  • Selectable current sensing limit
  • Programmable DCR temperature compensation
  • Die overtemperature thermal shutdown
  • Computer systems
  • Telecom systems
  • Industrial instruments
  • Medical instruments
  • DC power distribution systems

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Linear Technology
Part Number
Part Number
Voltage -
LTC3866EFE#PBF LTC3866EFE#PBF-ND 4.5 V ~ 38 V 24-TSSOP
(0.173", 4.40 mm width)
exposed pad
LTC3866 Datasheet