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MAX797 - Maxim

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MAX797 Step-Down Controllers with Synchronous Rectifier for CPU Power

The MAX796/MAX797/MAX799 high-performance, stepdown DC-DC converters with single or dual outputs provide main CPU power in battery-powered systems. These buck controllers achieve 96% efficiency by using synchronous rectification and Maxim’s proprietary Idle Mode™ control scheme to extend battery life at full-load (up to 10A) and no-load outputs. Excellent dy.

Features

o 96% Efficiency o 4.5V to 30V Input Range o 2.5V to 6V Adjustable Output o o o o o o o o o Preset 3.3V and 5V Outputs (at up to 10A) Multiple Regulated Outputs +5V Linear-Regulator Output Precision 2.505V Reference Output Automatic Bootstrap Circuit 150kHz/300kHz Fixed-Frequency PWM Operation Programmable Soft-Start 375µA Typ Quiescent Current (VIN = 12V, VOUT = 5V) 1µA Typ Shutdown Current _______________General Description The MAX796/MAX797/MAX799 high-performance, stepdown DC-DC converters with single or dual outputs provide main CPU power in battery-powered systems. These buck controller.

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