MAX8717ETI

交叉工作，高效，双电源控制器，用于笔记本电脑 Interleaved High-Efficiency, Dual Power-Supply Controllers for Notebook Computers

General Description

The MAX8716/MAX8717/MAX8757 are dual, step down, interleaved, fixed-frequency, switch-mode power-supply SMPS controllers with synchronous rectification. They are intended for main 5V/3.3V and I/O power generation in battery-powered systems.

Features

♦ Fixed 200kHz, 300kHz, or 500kHz Switching Frequency

♦ No Current-Sense Resistor Required

♦ 40/60 Optimal Interleaving

♦ Reduced Input-Capacitor Requirement

♦ 3.3V and 5V fixed or 1.0V to 5.5V Adjustable Outputs Dual Mode™

♦ 4V to 26V Input Range

♦ Independently Selectable PWM, Skip, and Low Noise Mode Operation

♦ Soft-Start and Soft-Stop

♦ 2V Precision Reference with 0.75% Accuracy

♦ Independent Power-Good Outputs

Applications

  2 to 4 Li+ Cell Battery-Powered Devices

  Notebook and Subnotebook Computers

  PDAs and Mobile Communicators

  Main or I/O Power Supplies