DESCRIPTION n Wide Output Voltage Range: 0.8V VOUT 10V The LTC®3835-1 is a high performance step-down switch- n Low Operating IQ: 80A ing regulator controller that drives an all N-channel synchro- n OPTI-LOOP® Compensation Minimizes COUT nous power MOSFET stage. A constant-frequency current n ±1% Output Voltage Accuracy mode architecture allows a phase-lockable frequency of n Wide VIN Range: 4V to 36V Operation up to 650kHz. n Phase-Lockable Fixed Frequency 140kHz to 650kHz n The 80A no-load quiescent current extends operating Dual N-Channel MOSFET Synchronous Drive n life in battery powered systems. OPTI-LOOP compensa- Very Low Dropout Operation: 99% Duty Cycle n tion allows the transient response to be optimized over Adjustable Output Voltage Soft-Start or Tracking n a wide range of output capacitance and ESR values. The Output Current Foldback Limiting n LTC3835-1 features a precision 0.8V reference and a power Output Overvoltage Protection n good output indicator. The 4V to 36V input supply