MAX1817 - 紧凑的、高效率、双输出、升压型DC-DC转换器

MAX1817是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX1817是紧凑的、高效率、双输出、升压型DC-DC转换器，本站介绍了MAX1817的封装应用图解、特点和优点、功能等，并给出了与MAX1817相关的Maxim元器件型号供参考。

MAX1817 - 紧凑的、高效率、双输出、升压型DC-DC转换器 - DC-DC开关调节器 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX1817 is a compact, high-efficiency, dual-output step-up converter for portable devices that provides both the main logic supply and the LCD bias. The device operates from an input voltage of +1.5V to +5.5V, allowing the use of 2- or 3-cell alkaline batteries, or 1-cell lithium-ion (Li+) batteries.

The MAX1817's main regulator supplies 125mA at either a preset 3.3V or an adjustable 2.5V to 5.5V output voltage with up to 88% efficiency. A 0.1µA shutdown state also minimizes battery drain. The MAX1817's secondary step-up converter provides the LCD bias voltage and is adjustable up to +28V.

Other features include a fast switching frequency to reduce the size of external components and a low quiescent current to maximize battery life. Both outputs can be independently shut down for improved flexibility.

The MAX1817 is supplied in a compact 10-pin µMAX package. The MAX1817 evaluation kit (MAX1817EVKIT) is available to speed up design.

关键特性

以下关键特性由Maxim美信半导体提供：

Dual Step-Up Converter in a Tiny 10-Pin µMAX Package

Main Output

Up to 125mA Load Current

Fixed 3.3V or Adjustable 2.5V to 5.5V

Up to 88% Efficiency

Internal Switch

LCD Output

Up to 28V for LCD Bias

Internal Switch

Input Voltage Range +1.5V to +5.5V

Minimal External Components Required

0.1µA Logic-Controlled Shutdown

Low 15µA Quiescent Supply Current

热门应用

GPS接收机

MP3播放器

数字助理/转换器

PDA

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