LTC3832/LTC3832-1 High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation
FEATURES
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DESCRIPTIO
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VOUT as Low as 0.6V High Power Switching Regulator Controller for 3.3V-5V to 0.6V-3.xV Step-Down Applications No Current Sense Resistor Required Low Input Supply Voltage Range: 3V to 8V Maximum Duty Cycle > 91% Over Temperature All N-Channel External MOSFETs Excellent Output Regulation: ± 1% Over Line, Load and Temperature Variations High Efficiency: Over 95% Possible Adjustable or Fixed 2.5V Output (LTC3832) Programmable Fixed Frequency Operation: 100kHz to 500kHz External Clock Synchronization Soft-Start Low Shutdown Current: 91% over temperature. They include a fixed frequency PWM oscillator for low output ripple operation. The 300kHz free-running clock frequency can be externally adjusted or synchronized with an external signal from 100kHz to 500kHz. In shutdown mode, the LTC3832 supply current drops to
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