General Description

The MAX8791/MAX8791B are single-phase, synchronous, noninverting MOSFET drivers. The MAX8791/MAX8791B are intended to work with controller ICs like the MAX8736 or MAX8786, in multiphase notebook CPU core regulators.

The regulators can either step down directly from the battery voltage to create the core voltage, or step down from the main system supply. The single-stage conversion method allows the highest possible efficiency, while the 2-stage conversion at higher switching frequency provides the minimum possible physical size.

Features

♦ Single-Phase, Synchronous MOSFET Drivers

♦ 0.5Ω Low-Side On-Resistance

♦ 0.7Ω High-Side On-Resistance

♦ 8ns Propagation Delay

♦ 15ns Minimum Guaranteed Dead Time

♦ Integrated Boost “Diode”

♦ 2V to 24V Input Voltage Range

♦ Selectable Pulse-Skipping Mode

♦ Low-Profile TQFN Package

Applications

   Notebooks/Desktops/Servers

   CPU Core Power Supplies

   Multiphase Step-Down Converters