The LTC3856 is a single output, dual channel PolyPhase synchronous step-down DC/DC controller that drives all N-channel power MOSFET stages. This device includes a high speed differential amplifier for remote output voltage sense. Power loss and supply noise are minimized by operating the two controller output stages out-of-phase and up to 12-phase operation can be achieved. The LTC3856 monitors the output current by sensing the voltage drop across the output inductor (DCR) or by using a sense resistor. DCR temperature compensation maintains an accurate current sense threshold over a broad temperature range. A constant-frequency, current mode architecture allows a phase-lockable frequency of up to 770kHz. A wide 4.5V to 38V input supply range encompasses most intermediate bus voltages and battery chemistries. Burst Mode operation, continuous or Stage Shedding modes are supported. A TK/SS pin shared by both channels ramps the output voltage during start-up. Applications * Telecom and Datacom Systems * Industrial and Medical Instruments * DC Power Distribution Systems * Computer Systems * PolyPhase® Controller Reduces Input and Output Capacitance and Power Supply Induced Noise * Wide VIN Range: 4.5V to 38V Operation * ±0.75%, 0.6V Reference Voltage Accuracy * High Efficiency: Up to 95% * Programmable Burst Mode® Operation or Stage Shedding™ for Highest Light Load Efficiency * Active Voltage Positioning (AVP) * RSENSE or DCR Current Sensing * Programmable DCR Temperature Compensation * Phase-Lockable Fixed Frequency: 250kHz to 770kHz * True Remote Sense Differential Amplifier * Dual N-Channel MOSFET Synchronous Drive * VOUT Range: 0.6V to 5V without Differential Amplifier * VOUT Range: 0.6V to 3.3V with Differential Amplifier * Adjustable Soft-Start or VOUT Tracking * Stackable for Up to 12-Phase Operation * 32-Pin (5mm × 5mm) QFN and 38-Pin TSSOP Packages https://elecena.pl/product/1068832/2-phase-synchronous-step-down-dc-dc-controller-with-diffamp 2010-05-20 https://elecena.pl/product/1068832/2-phase-synchronous-step-down-dc-dc-controller-with-diffamp 2017-10-12 https://elecena.pl/product/1068832/2-phase-synchronous-step-down-dc-dc-controller-with-diffamp 2025-01-18