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LT3973

量产

具 2.5μA 静态电流和集成型二极管的 42V、750mA 降压型稳压器

数据手册产品选型表

产品模型: 36

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产品详情

超低静态电流：
2.5μA I_Q (在 12V_IN 至 3.3V_OUT)
低纹波突发模式 (Burst Mode^®) 操作：
输出纹波 < 10mV_P-P
宽输入电压范围：工作时为 4.2V 至 42V
可调开关频率：200kHz 至 2.2MHz
集成型升压和箝位二极管
750mA 输出电流
卓越的启动和压差性能
固定输出电压：3.3V、5V
- 在 12V_IN 时 I_Q 为 1.9μA
准确的可编程欠压闭锁
低停机电流：I_Q = 0.75μA
内部箝位二极管电流限制
电源良好标记
热停机
小外形的耐热性能增强型 10 引脚 MSOP 封装和 (3mm x 3mm) DFN 封装

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
LT3973EDD#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EDD#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EDD-3.3#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EDD-3.3#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EDD-5#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EDD-5#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EMSE#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EMSE#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EMSE-3.3#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EMSE-3.3#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EMSE-5#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973EMSE-5#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HDD#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HDD#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HDD-3.3#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HDD-3.3#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HDD-5#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HDD-5#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HMSE#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HMSE#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HMSE-3.3#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HMSE-3.3#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HMSE-5#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973HMSE-5#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IDD#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IDD#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IDD-3.3#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IDD-3.3#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IDD-5#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IDD-5#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IMSE#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IMSE#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IMSE-3.3#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IMSE-3.3#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IMSE-5#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3973IMSE-5#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

产品型号	产品生命周期	PCN

6月 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)
		PCN24_0003_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3973EMSE#PBF	量产
LT3973EMSE#TRPBF	量产
LT3973EMSE-3.3#PBF	量产
LT3973EMSE-3.3#TRPBF	量产
LT3973EMSE-5#PBF	量产
LT3973EMSE-5#TRPBF	量产
LT3973HMSE#PBF	量产
LT3973HMSE#TRPBF	量产
LT3973HMSE-3.3#PBF	量产
LT3973HMSE-3.3#TRPBF	量产
LT3973HMSE-5#PBF	量产
LT3973HMSE-5#TRPBF	量产
LT3973IMSE-3.3#PBF	量产
LT3973IMSE-3.3#TRPBF	量产
LT3973IMSE-5#PBF	量产
LT3973IMSE-5#TRPBF	量产
2月 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0130_Form Material_Report
LT3973EMSE#PBF	量产
LT3973EMSE#TRPBF	量产
LT3973EMSE-3.3#PBF	量产
LT3973EMSE-3.3#TRPBF	量产
LT3973EMSE-5#PBF	量产
LT3973EMSE-5#TRPBF	量产
LT3973HMSE#PBF	量产
LT3973HMSE#TRPBF	量产
LT3973HMSE-3.3#PBF	量产
LT3973HMSE-3.3#TRPBF	量产
LT3973HMSE-5#PBF	量产
LT3973HMSE-5#TRPBF	量产
LT3973IMSE#PBF	量产
LT3973IMSE#TRPBF	量产
LT3973IMSE-3.3#PBF	量产
LT3973IMSE-3.3#TRPBF	量产
LT3973IMSE-5#PBF	量产
LT3973IMSE-5#TRPBF	量产
10月 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package
		PCN22_0244_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3973IMSE#PBF	量产
LT3973IMSE#TRPBF	量产
7月 12, 2022 - 22_0157 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM]
		PCN22_0157_Form Material_Report Qualification Results Summary Delta Qualification Matrix Detailed Parts List
LT3973IMSE#PBF	量产
LT3973IMSE#TRPBF	量产
6月 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices
		PCN22_0050_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3973IMSE#PBF	量产
LT3973IMSE#TRPBF	量产

这是最新版本的数据手册

软件资源

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硬件生态系统

部分模型	产品周期	描述
PowerPath、理想二极管和负载开关 1
LTC4359	推荐新设计使用	具反向输入保护功能的理想二极管控制器
浪涌抑制器、过压和过流保护 1
LTC4365	推荐新设计使用	欠压、过压和电源反向保护控制器
双电源监控器 1
LTC2960	推荐新设计使用	36V、纳安级电流、两输入电压监视器

部分模型	产品周期	描述
LTC4365	推荐新设计使用	欠压、过压和电源反向保护控制器
LTC2960	推荐新设计使用	36V、纳安级电流、两输入电压监视器
LTC4359	推荐新设计使用	具反向输入保护功能的理想二极管控制器

工具及仿真模型

LTspice 2

LTspice中提供以下器件型号：

LT3973

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。

评估套件

LT3973EMSE Demo Board | 42V, 750mA Step-Down Regulator with 2.5µA Quiescent Current

立即购买更多内容

产品详情

Demonstration circuit 1730A features the LT3973, a monolithic step-down switching regulator which consumes only 2.5μA quiescent current. The demo circuit is designed for a 5V, 750mA output from a 5.6V to 42V input. The wide input range of the LT3973 allows a variety of input sources including automotive batteries and 24V industrial supplies. In order to reduce the number of components and solution size, the catch diode and boost diode are integrated. The switching frequency is adjustable up to 2.2MHz. At light loads, the regulator operates in Burst Mode^® to maintain high efficiency and low output ripple.

资料

DC1730A - Demo Manual
108.00K

DC1730A - Design Files
537.00K

DC1730A - Schematic
30.00K

LT3973

产品详情

参考资料

数据手册 1

可靠性数据 1

用户手册 1

新闻 1

解决方案设计及宣传手册 1

软件资源

找不到您所需的软件或驱动?

硬件生态系统

工具及仿真模型

LTspice 2

LTspice中提供以下器件型号：

评估套件

产品详情

资料

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