MAX889T中文资料High-Frequency, Regulated, 200mA, Inverting Charge Pump数据手册ADI规格书

描述 Description

The MAX889 inverting charge pump delivers a regulated negative output voltage at loads of up to 200mA. The device operates with inputs from 2.7V to 5.5V to produce an adjustable, regulated output from -2.5V to -VIN.
The MAX889 is available with an operating frequency of 2MHz (T version), 1MHz (S version), or 0.5MHz (R version). The higher switching frequency devices allow the use of smaller capacitors for space-limited applications. The lower frequency devices have lower quiescent current.
The MAX889 also features a 0.1µA logic-controlled shutdown mode and is available in an 8-pin SO package. An evaluation kit, MAX889SEVKIT, is available.

特性 Features

·200mA Output Current
·Up to 2MHz Switching Frequency
·Small Capacitors (1µF)
·+2.7V to +5.5V Input Voltage Range
·Adjustable Regulated Negative Output (-2.5V to -VIN)
·0.1µA Logic-Controlled Shutdown
·Low 0.05Ω Output Resistance (in regulation)
·Soft-Start and Foldback Current Limited
·Short-Circuit and Thermal Shutdown Protected
·8-Pin SO Package

应用 Application

·电池供电应用
·便携式摄像机
·数码相机
·硬盘驱动器
·测量仪表
·TFT板

简介

MAX889T属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MAX889T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。