Flyback And SEPIC Controller Operates up to 175°C

Analog Devices announces the LTC1871X wide input range, current mode, boost, flyback or SEPIC controller that drives an N-channel power MOSFET and requires few external components. Intended for low to medium power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET’s on-resistance, thereby maximizing efficiency. The LTC1871X’s design is optimized for high temperature environments up to 175°C. Features include:

  • 100% Tested at 175°C
  • ±2% Reference Accuracy Over –40°C to 175°C Range
  • High Efficiency (No Sense Resistor Required)
  • Wide Input Voltage Range: 2.5V to 36V
  • Current Mode Control Provides Excellent Transient Response
  • High Maximum Duty Cycle (92% Typ)
  • ±2% RUN Pin Threshold with 100mV Hysteresis
  • Micropower Shutdown: IQ = 10μA
  • Programmable Operating Frequency (65kHz to 900kHz) with One External Resistor
  • Synchronizable to an External Clock up to 1.3 × fOSC
  • User-Controlled Pulse-Skipping or Burst Mode® Operation
  • Internal 5.2V Low Dropout Voltage Regulator
  • Output Overvoltage Protection
  • Capable of Operating with a Sense Resistor for High Output Voltage Applications
  • Small 10-Lead MSOP Package  

Price is $125.00 each/1,000. For more info and a datasheet, go to http://www.linear.com/product/LTC1871X

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