LTC3835 Datasheet | Linear Technology

Features nn Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 10V nn Low Operating Quiescent Current: 80µA nn OPTI-LOOP® pensation Minimizes COUT nn ±1% Output Voltage Accuracy nn Wide VIN Range: 4V to 36V Operation nn Phase-Lockable Fixed Frequency 140k Hz to 650k Hz nn Dual N-Channel MOSFET Synchronous Drive nn Very Low Dropout Operation: 99% Duty Cycle nn Adjustable Output Voltage Soft-Start or Tracking nn Output Current Foldback Limiting nn Power Good Output Voltage Monitor nn Clock Output for Poly Phase® Applications nn Output Overvoltage Protection nn Low Shutdown IQ: 10µA nn Internal LDO Powers Gate Drive from VIN or VOUT nn Selectable Continuous, Pulse-Skipping or nn Burst Mode® Operation at Light Loads nn Small 20-Lead TSSOP or 4mm × 5mm QFN Package nn AEC-Q100 Qualified for Automotive Applications APPLICATIONS nn Automotive Systems nn Tele Systems nn Battery-Operated Digital Devices nn Distributed DC Power Systems Low IQ Synchronous Step-Down Controller DESCRIPTION The LTC®3835 is a high performance step-down switching regulator controller that drives an all N-channel synchronous power MOSFET stage. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 650k Hz. The 80µA no-load quiescent current extends operating life in battery powered systems. OPTI-LOOP pensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3835 Features a precision 0.8V reference and a power good output indicator. The 4V to 36V input supply range enpasses a wide range of battery chemistries. The TRACK/SS pin ramps the output voltage during startup. Current foldback limits MOSFET heat dissipation during short-circuit conditions. parison of LTC3835 and LTC3835-1 PART # LTC3835 CLKOUT/ PHASMD EXTVCC YES PGOOD YES LTC3835-1 PACKAGES FE20/4 × 5 QFN GN16/3 × 5 DFN All registered trademarks and trademarks are the property of their respective owners....