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ADI/LINEAR MAX889TESA+T MAX889TESA
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR MAX889TESA+T
- Type
- ADI/LINEAR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- MAX889TESA+T
- Electronic Component
- 1
- Package
- SOIC-8
- Electronic Component
- Charge Pump
- Electronic Component
- 0.219g
- Electronic Component
- 1
- Features
- Output; Low Power
- Type
- Electronic Component
- Electronic Component
- BM0264864903
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2.7V~5.5V
- Switching Frequency
- 2MHz
- Output Resistor
- 50mΩ
- Static Current(Iq)
- 48mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MAX889TESA+T 产品概述
一、产品简介
MAX889TESA+T 是 Analog Devices / Linear 提供的一款高性能充电泵式反相开关稳压器，专为从单电源产生稳定负电压而设计。器件工作电压范围宽（2.7V 至 5.5V），可输出可调负电压范围 -5.5V 到 -2.5V，单路输出，最大输出电流可达 200mA，适合为运放、数据转换器、传感前端和模拟偏置电路提供负偏供电。
二、关键规格
- 输入电压：2.7V ~ 5.5V
- 输出电压：-5.5V ~ -2.5V（可调）
- 输出电流：最大 200mA
- 静态电流：约 48mA（正常工作态）；具备低功耗待机模式
- 输出阻抗（等效）：约 50mΩ，负载调节性能良好
- 开关频率：2MHz（高频设计，允许使用小体积电容）
- 工作温度：-40℃ ~ +85℃
- 封装：8 引脚 SOIC（0.154"，3.90mm 宽）
- 主要保护与特性：过流保护、输出短路保护、软启动、低功耗待机
三、功能特性与保护
MAX889TESA+T 集成多项实用保护与控制功能：软启动能限制启动浪涌并抑制输出过冲；过流保护与短路保护在异常负载情形下保护器件与负载；低功耗待机模式便于系统在不需要负栽时显著降低功耗。2MHz 的开关频率既保证体积小，又需注意布局以降低EMI。
四、应用场景
适用于便携仪器、便携式音频设备、精密模拟前端、数据采集系统、工业传感等需要从单电源生成稳定负轨的场合。尤其在空间受限且需小尺寸外部元件时表现优异。
五、设计建议
- 输入及输出旁路电容应尽量靠近器件引脚布置，使用低ESR 类型以保证稳定性与低纹波。
- 飞行/泵浦电容布局要紧凑，走短而粗的回流路径，降低寄生电感。
- 在高频工作（2MHz）下注意PCB走线、地平面完整性和关闭环路的回流路径，必要时考虑滤波和屏蔽以控制EMI。
- 热管理：在高负载连续工作时关注封装温升并保证散热条件，以维持可靠性。
MAX889TESA+T 以其宽输入范围、高输出电流能力、丰富保护功能与小封装尺寸，能为各种需要负电源的系统提供稳定且高效的解决方案。
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