MAX684中文资料3.3V输入、稳压输出5V的电荷泵数据手册ADI规格书

描述 Description

The MAX682/MAX683/MAX684 charge-pump regulators generate 5V from a 2.7V to 5.5V input. They are specifically designed to serve as high-efficiency auxiliary supplies in applications that demand a compact design. The MAX682, MAX683, and MAX684 deliver 250mA, 100mA, and 50mA output current, respectively.
These complete 5V regulators require only one resistor and three external capacitors—no inductors are needed. High switching frequencies (externally adjustable up to 2MHz) and a unique regulation scheme allow the use of capacitors as small as 1µF per 100mA of output current. The MAX683/MAX684 are offered in a space-saving 8-pin µMAX package that is only 1.1mm high, while the MAX682 is available in an 8-pin SO.

特性 Features

• Ultra-Small: 1µF Capacitors per 100mA of Output Current
• No Inductors Required
• 1.1mm Height in µMAX Package (MAX683/MAX684)
• Up to 250mA Output Current (MAX682)
• Regulated ±4% Output Voltage
• 50kHz to 2MHz Adjustable Switching Frequency
• 2.7V to 5.5V Input Voltage
• 100µA Quiescent Current in Pulse-Skipping Mode
• 0.1µA Shutdown Current

应用 Application

• 3.3V至5V本地转换应用
• 3V至5V GSM SIMM卡
• 备用电池升压转换器
• 电池供电应用
• 闪存电源
• 微型设备
• PCMCIA卡

简介

MAX684属于集成电路（IC）的监控器。由ADI制造生产的MAX684监控器PMIC 监控器用于监视和/或控制电路中的电压轨，能够连接微控制器以维持一定的功率限值。监控器类型包括电池备用电路、监控器、多电压监控器、电源监控器、稳压器/监控器、复位计时器、定序器、简单复位/上电复位、智能开/关控制器、系统管理器、电压检测器和看门狗电路。