MAX797H Datasheet - Maxim

MAX797H High-Voltage / Step-Down Controller with Synchronous Rectifier for CPU Power

The MAX797H high-performance, step-down DC-DC converter provides main CPU power in battery-powered systems. A 40V rating on the power stage’s input allows operation with high-cell-count batteries and a wide range of AC adaptors. This buck controller achieves 96% efficiency by using synchronous recti.

MAX797H Features

* o 96% Efficiency o Up to 40V Power Input o 2.5V to 6V Adjustable Output o o o o o o o o Preset 3.3V and 5V Outputs (at up to 10A) 5V Linear-Regulator Output Precision 2.505V Reference Output Automatic Bootstrap Circuit 150kHz/300kHz Fixed-Frequency PWM Operation Programmable Soft-Start 375µA Quiesce

MAX797H_MaximIntegratedProducts.pdf