LT3050
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LT3050

具精准电流限值和诊断功能的 100mA、性稳压器

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LTspice LT3050-5 Demo Circuit - Automotive Active Antenna Power Supply with Precision Current Limit & Diagnostics (5.6-15V to 5V @ 100mA) Download 2.00KB LTspice LT3050 Demo Circuit - Low Noise Linear Regulator with Diagnostic Functions ( 5.4-45V to 5V @ 100mA) Download 2.00KB LTspice LT3050 - LDO Linear Regulators Download 2.06 KB LTspice LT3050 - LDO Linear Regulators, LTC2925 - Sequencers, Trackers, and Margining Controllers Download 10.77 KB
产品模型 30
特性
  • 输出电流监视器：IOUT 的 1/100
  • 故障指示器：电流限值、最小 IOUT 或热限值
  • 输出电流：100mA
  • 压差电压：340mV
  • 输入电压范围：1.6V 至 45V
  • 可编程精准电流限值：±5%
  • 可编程最小 IOUT 监视器 
  • 低噪声：30μVRMS (10Hz 至 100kHz)
  • 可调输出 (VREF = VOUT(MIN) = 0.6V)
  • 固定输出电压：3.3V、5V
  • 输出容差：±2% (在整个电压、负载和温度范围)
  • 可在采用低 ESR 陶瓷输出电容器 (最小电容值为 2.2μF) 时保持稳定
  • 停机电流：<1μA
  • 反向电池、反向输出和反向电流保护功能
  • 热限制保护
  • 12 引脚 3mm x 2mm DFN 封装和 MSOP 封装

 

更多细节
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LT®3050 系列是一款微功率、低噪声、低压差电压 (LDO) 线性稳压器。该器件可提供 100mA 的输出电流和一个 340mV 的压差电压。一个 10nF 的旁路电容器将输出噪声降低至 30μVRMS (在一个 10Hz 至 100kHz 的带宽内)，并对基准实施软起动。LT3050 的 ±45V 额定输入电压以及其精准的电流限值和诊断功能使得该 IC 成为坚固、高可靠性系统的理想选择。

由单个电阻器负责设置 LT3050 的电流限值，并在一个宽输入电压和温度范围内实现 ±5% 的准确度。利用单个电阻器来设置 LT3050 的最小输出电流监视器，对于检测开路情况是很有用。电流监视器功能电路提供了一个等于 1/100 输出电流的电流。如果 LT3050 处于电流限制状态、在低于其最小输出电流的条件下运作 (开路) 或处于热停机状态，则一个逻辑 FAULT  引脚将确定为低电平。

LT3050 利用低 ESR 陶瓷电容器优化稳定性和瞬态响应，所需的最小电容为 2.2μF。LT3050 可用作一款具一个低至0.6V 基准的输出电压范围的可调型器件。LT3050 采用耐热性能增强型 12 引脚 3mm x 2mm DFN 和 MSOP 封装。

 


Applications

  • 受保护的天线电源
  • 汽车信息服务系统
  • 工业应用 (货车、叉式升降机 … 等)
  • 高可靠性应用

 

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file 查看数据手册
Documentation 查看所有文档
LTspice LT3050-5 Demo Circuit - Automotive Active Antenna Power Supply with Precision Current Limit & Diagnostics (5.6-15V to 5V @ 100mA) Download 2.00KB LTspice LT3050 Demo Circuit - Low Noise Linear Regulator with Diagnostic Functions ( 5.4-45V to 5V @ 100mA) Download 2.00KB LTspice LT3050 - LDO Linear Regulators Download 2.06 KB LTspice LT3050 - LDO Linear Regulators, LTC2925 - Sequencers, Trackers, and Margining Controllers Download 10.77 KB
产品模型 30
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LT3050

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更新 06/16/2010
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LT3050: 100mA, Linear Regulator with Precision Current Limit and Diagnostic Outputs Data Sheet

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更新 08/03/2010
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LT3050: 高精度電流制限と診断機能を備えた100mAリニア・レギュレータ データシート

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产品技术资料帮助

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

参考资料

参考资料

ADI 始终高度重视提供符合最高质量和可靠性水平的产品。我们通过将质量和可靠性检查纳入产品和工艺设计的各个范围以及制造过程来实现这一目标。出货产品的“零缺陷”始终是我们的目标。查看我们的质量和可靠性计划和认证以了解更多信息。

产品型号 引脚/封装图-中文版 文档 CAD 符号，脚注和 3D模型
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LT3050EMSE#PBF 12-Lead MSOP w/ EP external-link
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LT3050EMSE#TRPBF 12-Lead MSOP w/ EP external-link
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LT3050IDDB#TRMPBF 12-Lead DFN (3mm x 2mm w/ EP) external-link
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LT3050IDDB-3.3#TRMPBF 12-Lead DFN (3mm x 2mm w/ EP) external-link
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LT3050IDDB-3.3#TRPBF 12-Lead DFN (3mm x 2mm w/ EP) external-link
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LT3050IDDB-5#TRMPBF 12-Lead DFN (3mm x 2mm w/ EP) external-link
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LT3050IMSE#PBF 12-Lead MSOP w/ EP external-link
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LT3050IMSE#TRPBF 12-Lead MSOP w/ EP external-link
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LT3050IMSE-3.3#PBF 12-Lead MSOP w/ EP external-link
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LT3050IMSE-3.3#TRPBF 12-Lead MSOP w/ EP external-link
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LT3050IMSE-5#PBF 12-Lead MSOP w/ EP external-link
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LT3050IMSE-5#TRPBF 12-Lead MSOP w/ EP external-link
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LT3050MPMSE#PBF 12-Lead MSOP w/ EP external-link
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LT3050MPMSE-3.3#PBF 12-Lead MSOP w/ EP external-link
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LT3050MPMSE-3.3#TRPBF 12-Lead MSOP w/ EP external-link
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LT3050MPMSE-5#PBF 12-Lead MSOP w/ EP external-link
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LT3050MPMSE-5#TRPBF 12-Lead MSOP w/ EP external-link
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6月 5, 2024

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Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

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2月 4, 2020

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Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

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根据型号筛选

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产品生命周期

PCN

6月 5, 2024

- 24_0003

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Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LT3050EMSE#PBF

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PCN24_0003_Form

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xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
2月 4, 2020

- 20_0129

arrow down

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LT3050EMSE#PBF

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PCN20_0129_Form

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软件和型号相关生态系统

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正线性稳压器(LDO)1
LT3060
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45V VIN、微功率、低噪声、100mA 低压差线性稳压器

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45V VIN、微功率、低噪声、100mA 低压差线性稳压器

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DC1515A

LT3050EDDB Demo Board | Micropower Low Noise, Low Dropout Linear Regulator, Current Limit, Diagnostics, 2V ≤ VIN ≤ 45V, VOUT = 1.2V/1.5V/1.8V/2.5V/3.3V/5V/Adjustable at 100mA

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DC1515A

LT3050EDDB Demo Board | Micropower Low Noise, Low Dropout Linear Regulator, Current Limit, Diagnostics, 2V ≤ VIN ≤ 45V, VOUT = 1.2V/1.5V/1.8V/2.5V/3.3V/5V/Adjustable at 100mA

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DC1515A
LT3050EDDB Demo Board | Micropower Low Noise, Low Dropout Linear Regulator, Current Limit, Diagnostics, 2V ≤ VIN ≤ 45V, VOUT = 1.2V/1.5V/1.8V/2.5V/3.3V/5V/Adjustable at 100mA
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产品详情

Demonstration circuit 1515 is an adjustable 100mA linear regulator featuring the LT3050. The LT3050 is a micropower, low noise and low dropout voltage linear regulator. The device supplies 100mA of output current with a dropout voltage of 340mV. A 10nF bypass capacitor reduces output noise to 30μVRMS (10Hz to 100kHz bandwidth) and soft-starts the reference. The demo board's 2V to 45V input voltage range combined with its precision current limit and diagnostic functions make the IC an ideal choice for robust, high reliability applications such as  protected antenna power supplies. The jumper-selectable output voltage can be set to 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V or a user-defined voltage. The input and output pins can withstand up to ±50V and the output is short-circuit protected.


The internal current limit should be considered when the input-to-output differential is high. The LT3050's current limit can be programmed by a single resistor and is accurate to ±5% over a wide input voltage and temperature range. A single resistor programs the LT3050’s minimum output current monitor, useful for detecting open-circuit conditions. The current monitor function sources a current equal to 1/100th of output current. A logic FAULT pin asserts low if the LT3050 is in current limit, operating below its minimum output current (open-circuit) or is in thermal shutdown.

资料

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DC1515A - Design Files Download

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DC1515A - Schematic Download

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DC1515A - Demo Board Download

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DC1515A

LT3050EDDB Demo Board | Micropower Low Noise, Low Dropout Linear Regulator, Current Limit, Diagnostics, 2V ≤ VIN ≤ 45V, VOUT = 1.2V/1.5V/1.8V/2.5V/3.3V/5V/Adjustable at 100mA
工具和仿真

工具及仿真模型 1

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器，为改善模拟电路的仿真提供增强功能和模型。

启动此部分的现成LTspice演示电路：

第1步：下载并在计算机上安装LTspice。

第2步：单击下面的链接，下载演示电路。

第3步：如果在单击以下链接之后LTspice未自动打开，可通过右击该链接并选择“目标另存为”来运行该仿真。将文件保存到计算机之后，请启动LTspice并从“文件”菜单中选择“打开”来打开演示电路。

spice tool Lt Spice

LT3050 Demo Circuit - Low Noise Linear Regulator with Diagnostic Functions ( 5.4-45V to 5V @ 100mA) Download

2.00K

spice tool Lt Spice

LT3050-5 Demo Circuit - Automotive Active Antenna Power Supply with Precision Current Limit & Diagnostics (5.6-15V to 5V @ 100mA) Download

2.00K

spice tool Lt Spice

LT3050 - LDO Linear Regulators Download

2.06 K

spice tool Lt Spice

LT3050 - LDO Linear Regulators, LTC2925 - Sequencers, Trackers, and Margining Controllers Download

10.77 K
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