The LTC1871-7 is a current mode, boost, flyback and SEPIC controller optimized for driving 6V-rated MOSFETs in high voltage applications. The LTC1871-7 works equally well in low or high power applications and requires few components to provide a complete power supply solution. The switching 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 6V and a low shutdown quiescent current of 10µA make the LTC1871-7 well suited for battery-operated systems. For applications requiring constant frequency operation, Burst Mode operation can be defeated using the MODE/SYNC pin. The LTC1871-7 is available in the 10-lead MSOP package. VIN Range INTVCC Features LTC1871 2.5V to 36V 5.2V - LTC1871-1 2.5V to 36V 5.2V Lower Burst Mode Threshold (0.195V vs. 0.3V) LTC1871-7 6V to 36V 7V Drives 6V Gate N-Channel MOSFETs LTC1871X 2.5V to 36V 5.2V 175°C Junction Temp, 100% Tested at 175°C Applications * Telecom Power Supplies * 42V Automotive Systems * 24V Industrial Controls * IP Phone Power Supplies * Optimized for High Input Voltage Applications * Wide Chip Supply Voltage Range: 6V to 36V * Internal 7V Low Dropout Voltage Regulator Optimized for 6V-Rated MOSFETs * Current Mode Control Provides Excellent Transient Response * High Maximum Duty Cycle (92% Typ) * ±2% RUN Pin Threshold with 100mV Hysteresis * ±1% Internal Voltage Reference https://elecena.pl/product/253517/high-input-voltage-current-mode-boost-flyback-and-sepic-controller 2007-03-03 https://elecena.pl/product/253517/high-input-voltage-current-mode-boost-flyback-and-sepic-controller 2017-10-10 https://elecena.pl/product/253517/high-input-voltage-current-mode-boost-flyback-and-sepic-controller 2025-01-19