LINEAR TECHNOLOGY  LTC1871EMS#PBF  DC/DC Controller, Current Mode, 2.5V to 36V, 1 Output, Boost, Flyback, SEPIC, 1MHz, MSOP-10

LINEAR TECHNOLOGY LTC1871EMS#PBF

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Product Overview


The LTC1871EMS#PBF is a wide input range, no RSENSE™ current mode boost, flyback and SEPIC Controller that drives an N-channel power MOSFET and requires very 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. This ICs operating frequency can be set with an external resistor over a 50kHz to 1MHz range and can be synchronized to an external clock using the MODE/SYNC pin. Burst Mode operation at light loads, a low minimum operating supply voltage of 2.5V and a low shutdown quiescent current of 10μA make this ideally suited for battery-operated systems.
  • High efficiency (no sense resistor required)
  • Current mode control provides excellent transient response
  • High maximum duty cycle (92% typical)
  • ±2% Run pin threshold with 100mv hysteresis
  • ±1% Internal voltage reference
  • 10μA IQ micropower shutdown
  • Programmable operating frequency (50kHz to 1MHz) with one external resistor
  • User-controlled pulse skip or burst Mode® operation
  • Internal 5.2V low dropout voltage regulator
  • Output overvoltage protection

Applications

Power Management; Portable Devices
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Product Information


  • Supply Voltage Min 2.5V
  • Supply Voltage Max 36V
  • No. of Outputs 1 Output
  • Duty Cycle (%) 97%
  • Controller IC Case Style MSOP
  • No. of Pins 10Pins
  • Switching Frequency 1MHz
  • Topology Boost, Flyback, SEPIC
  • Operating Temperature Min -40°C
  • Operating Temperature Max 85°C
  • Packaging Cut Tape
  • MSL MSL 1 - Unlimited
  • Supply Voltage Range 2.5V to 36V
  • Output Current 50 mA
  • SVHC No SVHC (15-Jun-2015)
  • Output Voltage 12 V

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    Availability:  516


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      More stock available week commencing 6/6/16

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    Price: $5.54 $5.54

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