MAX38640A中文资料Tiny 1.8V–5.5V Input, 330nA IQ, 700mA nanoPower Buck Converter数据手册ADI规格书

描述 Description

The MAX3864xA/B are nanoPower family of ultra-low 330nA quiescent current buck (step-down) DC-DC converters operating from 1.8V to 5.5V input voltage and supporting load currents of up to 175mA, 350mA, 700mA with peak efficiencies of 96%. While in shutdown, there is only 5nA of shutdown current. The devices offer ultra-low quiescent current, small total solution size, and high efficiency throughout the load range. The MAX3864xA/B are ideal for battery applications where long battery life is a must.
The MAX3864xA/B family utilizes a unique control scheme that allows ultra-low quiescent current and high efficiency over a wide output current range. MAX38642 excludes active discharge resistor in shutdown which allows the output to be regulated or held high by another source or by the charged output capacitor.
The MAX3864xA/B devices are offered in a space-saving 1.42mm x 0.89mm 6-pin wafer-level package (WLP) (2 x 3 bumps, 0.4mm pitch), as well as a 2mm x 2mm, 6-pin μDFN package. All parts are specified from -40°C to +85°C.

特性 Features

• 延长电池寿命
• 330nA超低静态电流
• 5nA关断电流
• 96%峰值效率，以及10μA时的效率高于88%
• 使用简单 — 符合常见操作
• 输入电压范围：1.8V至5.5V
• 可编程VOUT：0.5V至5V
• 单电阻可调节VOUT：0.7V至3.3V
• 输出电压精度：±1.75%
• 负载电流：高达175mA/350mA/700mA
• 在多种用例条件下保护系统
• 关断模式下具有反向电流保护
• 可选有源放电特性
• 减小尺寸、提高可靠性
• -40°C至+85°C温度范围
• 2mm x 2mm 6-pin μDFN封装
• 1.42mm x 0.89mm、0.4mm焊距、6引脚(2 x 3) WLP封装

应用 Application

• 便携式、空间受限消费电子产品
• 单节锂离子电池和纽扣电池供电产品
• 便携式、空间受限消费电子产品
• 有线、无线、工业产品

简介

MAX38640A属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MAX38640A稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。