WMSIC Electronic Components

ADI/LINEAR LT3015EDD#TRPBF LT3015EDD

ModelLT3015EDD#TRPBF
PackageDFN-8-EP(3x3)
BrandADI/LINEAR
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR LT3015EDD#TRPBF
Type
ADI/LINEAR
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
310mV@(1.5A)
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
60uVrms
Electronic Component
LT3015EDD#TRPBF
Electronic Component
1
Package
DFN-8-EP(3x3)
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.041g
Electronic Component
1
Features
Current
Electronic Component
BM0257408097
Operating Temperature
40℃~+125℃@(Tj)
Operating Voltage
30V
Output
Electronic Component
Output Voltage
1.22V~29.3V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

LT3015EDD#TRPBF 产品概述

一、产品简介

LT3015EDD#TRPBF 是 ADI/Linear 推出的一款高性能可调线性稳压器(LDO),面向需要大输入电压余量、高精度、低噪声与高纹波抑制的系统。该器件支持单通道输出,输入耐压最高可达 30V,输出电流可达 1.5A,输出电压可通过外部分压调整在 1.22V 到 29.3V 之间,适用于工业级和嵌入式电源设计场景。

二、主要电气参数

  • 输出类型:可调
  • 工作电压(输入耐压):30V
  • 输出电压范围:1.22V ~ 29.3V(通过反馈电阻设置)
  • 最大输出电流:1.5A
  • 压降(Dropout):310mV @ 1.5A
  • 静态电流(Iq):约 1.1mA
  • 噪声:60 µVrms(典型)
  • 电源纹波抑制比(PSRR):62 dB @ 120 Hz
  • 输出通道数:1
  • 输出极性:负极(按器件标识)
  • 工作结温范围:-40℃ ~ +125℃(Tj)

三、关键特性与优势

  • 低压差运行:310 mV 的典型压差在满载(1.5A)条件下可显著降低输入-输出电压差,对高效率、小压差场合友好。
  • 高电流能力:1.5A 的输出能力适合为中等功率负载(放大器、驱动器、数字电路)供电。
  • 低噪声与高 PSRR:60 µVrms 的噪声与 62 dB@120Hz 的 PSRR,使其在对噪声敏感的模拟前端、数据采集与无线收发应用中表现优异。
  • 低静态电流:1.1 mA 的静态电流在保证调节性能的同时,利于降低待机功耗(对需常开供电的系统有利)。
  • 多重保护机制:内置过流保护(OCP)、欠压锁定(UVLO)与过热保护(OTP),提高系统的可靠性与容错性。

四、热管理与保护说明

在高电流与大输入-输出压差条件下,器件功耗显著,上封装热阻与 PCB 散热尤为重要。建议在 PCB 设计中:

  • 使用带有大面积敷铜的散热层,并连接器件下方的导热焊盘(DFN-8-EP 的热焊盘)。
  • 将功耗路径(输入引脚、输出引脚与地)布局紧凑以缩短热流路径。
  • 在高功率工况下进行热仿真并评估结温,防止触发过热保护导致降额或关断。

器件内置过流与过热保护,可在异常负载或热应力下保护自身和系统,但不应依赖保护作为正常散热替代。

五、封装与引脚信息

  • 封装类型:DFN-8-EP (3 mm x 3 mm),带底部热焊盘(EP),有利于热量导出与小型化系统集成。
  • 单通道输出、外部通过反馈电阻设定输出电压,适配不同电压轨需求。

六、典型应用与设计建议

应用场景:

  • 工业控制与自动化设备(需高可靠性、宽温度范围)
  • 精密模拟电路与数据采集前端(需低噪声、高 PSRR)
  • 通信设备与射频收发链路的偏置电源
  • 嵌入式系统与传感器供电

设计建议(通用原则):

  • 输入/输出旁路电容:为保证稳定性与瞬态响应,建议使用低 ESR 的陶瓷(X7R/Y5V 根据需要)或钽电容作为输入/输出旁路;具体电容值参考应用场景(通常为微法级到数十微法)。
  • 布局要点:输入电容靠近 VIN 引脚放置,输出电容靠近 VOUT 与地放置;尽量缩短高电流回路路径,底部热焊盘与地层连通以提升散热性能。
  • 输出调整:按照器件参考电压 1.22V 设计反馈分压网络,注意反馈网络要稳定且阻值不过高以避免噪声拾取。
  • 保护与滤波:在需要更佳瞬态与纹波抑制的场合,可在输入侧加串联电感或更大容量的滤波器件。

七、总结

LT3015EDD#TRPBF 是一款面向高可靠性、低噪声且可调输出的高输入电压 LDO,结合 1.5A 输出能力、低压差和多重保护,适合工业与精密电子系统。合理的 PCB 热设计与旁路电容选型可充分发挥其性能优势。如需用于特定应用,建议对输入电压、功耗与散热条件进行系统级评估,并参阅完整数据手册获取引脚配置与参考设计。

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