The LTC3835-1 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 650kHz. The 80µA no-load quiescent current extends operating life in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3835-1 features a precision 0.8V reference and a power good output indicator. The 4V to 36V input supply range encompasses 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. Comparison of LTC3835 and LTC3835-1 CLKOUT/PHASMD EXTVCC PGOOD Package LTC3835 Yes Yes Yes TSSOP-20, 4x5 QFN-20 LTC3835-1 No No No GN-16, 3x5 DFN-16 Applications * Automotive Systems * Telecom Systems * Battery-Operated Digital Devices * Distributed DC Power Systems * Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 10V * Low Operating IQ: 80µA * OPTI-LOOP® Compensation Minimizes COUT * ±1% Output Voltage Accuracy * Wide VIN Range: 4V to 36V Operation * Phase-Lockable Fixed Frequency 140kHz to 650kHz * Dual N-Channel MOSFET Synchronous Drive https://elecena.pl/product/260072/low-i-synchronous-step-down-controller 2007-03-04 https://elecena.pl/product/260072/low-i-synchronous-step-down-controller 2014-06-28 https://elecena.pl/product/260072/low-i-synchronous-step-down-controller 2025-01-21