LTC1871

FEATURES n High Efficiency (No Sense Resistor Required) n Wide Input Voltage Range: 2.5V to 36V n Current Mode Control Provides Excellent Transient Response n High Maximum Duty Cycle (92% Typ) n ±2% RUN Pin Threshold with 100mV Hysteresis n ±1% Internal Voltage Reference n Micropower Shutdown: IQ = 10μA n Programmable Operating Frequency (50kHz to 1MHz) with One External Resistor n Synchronizable to an External Clock Up to 1.3 × fOSC n User-Controlled Pulse Skip or Burst Mode® Operation n Internal 5.2V Low Dropout Voltage Regulator n Output Overvoltage Protection n Capable of Operating with a Sense Resistor for High Output Voltage Applications n Small 10-Lead MSOP Package APPLICATIONS n Telecom Power Supplies n Portable Electronic Equipment LTC1871 Wide Input Range, No RSENSE™ Current Mode Boost, Flyback and SEPIC Controller DESCRIPTION The LTC®1871 is a wide input range, current mode, boost, flyback or SEPIC controller that drives an N-channel power MOSFET and requires very...