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ADI/LINEAR LT1934ES6#TRPBF LT1934ES6
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR LT1934ES6#TRPBF
- Type
- ADI/LINEAR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- LT1934ES6#TRPBF
- Electronic Component
- 1
- Package
- TSOT-23-6
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.047g
- Electronic Component
- 1
- Features
- Load
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0227487912
- Operating Temperature
- 40℃~+85℃@(TA)
- Operating Voltage
- 3.2V~34V
- Electronic Component
- Electronic Component
- Output Current
- 300mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LT1934ES6#TRPBF 产品概述
一、产品简介
LT1934ES6#TRPBF 是 ADI（原 Linear Technology）推出的一款低静态电流、可调式降压型开关稳压器芯片。器件采用降压（Buck）拓扑，内置开关管，非同步整流结构，单通道输出并封装于 TSOT-23-6（细型）封装。其典型应用面向电池供电和空间受限的便携/工业系统，输入电压范围宽（3.2V～34V），输出可通过外部分压调整并以 1.25V 为参考基准，最大输出电流可达 300mA，工作温度范围为 -40℃ 至 +85℃（TA）。
二、主要参数（摘要）
- 输出类型：可调（基准 1.25V）
- 拓扑结构：降压（非同步）
- 开关管：内置
- 最大输出电流：300mA
- 工作电压（VIN）：3.2V ～ 34V
- 静态电流（Iq）：约 12µA（微功耗）
- 同步整流：否（需外接肖特基/整流二极管）
- 工作温度：-40℃ ～ +85℃（TA）
- 输出通道数：1
- 封装：TSOT-23-6（细型）
- 品牌：ADI / Linear
三、典型功能与优势
- 极低静态电流（12µA），非常适合电池供电或待机功耗敏感的设计。
- 宽输入电压范围，可直接用于多节电池或宽压源场合。
- 内置开关器件简化外部元件数量与布局，适合体积受限应用。
- 可调输出通过外部电阻实现多种电压点，灵活性高。
- TSOT-23-6 封装便于表面贴装和小型化设计。
四、典型应用场景
- 便携式和手持设备的主/子电源
- 电池管理与后级稳压（锂电、铅酸、碱性电池系统）
- 工业控制和传感器供电模块
- 汽车辅助电源（受限于环温与输入瞬态）
- 低功耗仪表与遥测终端
五、设计注意事项与推荐实践
- 由于为非同步降压，需要选择低正向压降的肖特基二极管作为整流元件，以提高效率并降低热损耗。
- 输入和输出电容应选用低 ESR 类型（如陶瓷或固体电解）并放置在芯片引脚附近，以减少纹波和改善稳定性。
- 电感器应满足峰值电流和饱和电流要求，选择合适电感量与直流电阻以平衡效率与瞬态响应。
- 布局要求：将 SW 节点的走线尽量短、粗，输入电容靠近 VIN 与 GND，反馈网络靠近 FB 引脚，减小噪声对反馈回路的影响。
- 热管理：TSOT-23-6 封装散热能力有限，大电流或大压差工况下注意器件温升与必要的铜箔散热策略。
六、总结
LT1934ES6#TRPBF 提供了在宽输入电压下实现微功耗、可调输出的紧凑降压解决方案。其低静态电流和内置开关特性使其非常适合电池供电和能耗敏感的应用；同时非同步整流的结构要求设计时注意外部肖特基二极管和热管理。遵循合理的元件选择与 PCB 布局规范，LT1934 可在多种便携与工业场景中实现稳定高效的电源输出。若需更详细的电气特性曲线、典型应用电路与元件选择建议，请参考官方数据手册。
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