MAX767|MAX767R|MAX767S|MAX767T - 5V至3.3V输出、同步整流、降压型电源控制器

MAX767|MAX767R|MAX767S|MAX767T - 5V至3.3V输出、同步整流、降压型电源控制器 - DC-DC开关调节器 - ±2.5%高精度电源，用于单、双Pentium处理器系统 - 美信半导体

产品概述

The MAX767 is a high-efficiency, synchronous buck controller IC dedicated to converting a fixed 5V supply into a tightly regulated 3.3V output. Two key features set this device apart from similar, low-voltage step-down switching regulators: high operating frequency and all N-channel construction in the application circuit. The 300kHz operating frequency results in very small, low-cost external surface-mount components.

The inductor, at 3.3µH for 5A, is physically at least five times smaller than inductors found in competing solutions. All N-channel construction and synchronous rectification result in reduced cost and highest efficiency. Efficiency exceeds 90% over a wide range of loading, eliminating the need for heatsinking. Output capacitance requirements are low, reducing board space and cost.

The MAX767 is a monolithic BiCMOS IC available in 20-pin SSOP packages. For other fixed output voltages and package options, please consult the factory.

关键特性

以下关键特性由Maxim美信半导体提供：

>90% Efficiency

700µA Quiescent Supply Current

120µA Standby Supply Current

4.5V-to-5.5V Input Range

Low-Cost Application Circuit

All N-Channel Switches

Small External Components

Tiny Shrink-Small-Outline Package (SSOP)

Predesigned Applications:

Standard 5V to 3.3V DC-DC Converters up to 10A

High-Accuracy Pentium P54C VR-Spec Supply

Fixed Output Voltages Available:

3.3V (Standard)

3.45V (High-Speed Pentium™)

3.6V (PowerPC™)

热门应用

本地5V至3.3V DC-DC转换

微处理器子板

高达10A或更高功率的电源

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