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LT3480

量产

具 70μA 静态电流的 36V、2A、2.4MHz 降压型开关稳压器

数据手册

产品模型: 12

Viewing:

产品详情

宽输入范围：

工作时为 3.6V 至 36V
过压闭锁功能可保护电路安全承受 60V 瞬变

2A 最大输出电流
低纹波突发模式 (Burst Mode^®) 操作

70μA I_Q (在 12V_IN 至 3.3V_OUT)
输出纹波 <15mV

可调开关频率：200kHz 至 2.4MHz
低停机电流：I_Q <1μA
集成升压二极管
可同步范围：250kHz 至 2MHz
电源良好标记
饱和开关设计：0.25Ω 接通电阻
0.790V 反馈基准电压
输出电压：0.79V 至 20V
软起动功能
小外形 10 引脚耐热增强型 MSOP 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
LT3480EDD#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480EDD#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480EMSE#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480EMSE#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480HMSE#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480HMSE#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480IDD#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480IDD#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480IMSE#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480IMSE#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480MPMSE#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3480MPMSE#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

产品型号	产品生命周期	PCN

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
LT3480EMSE#PBF	量产
LT3480EMSE#TRPBF	量产
LT3480IMSE#PBF	量产
LT3480IMSE#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
LT3480EMSE#PBF	量产
LT3480EMSE#TRPBF	量产
LT3480IMSE#PBF	量产
LT3480IMSE#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
LT3480EMSE#PBF	量产
LT3480EMSE#TRPBF	量产
LT3480IMSE#PBF	量产
LT3480IMSE#TRPBF	量产
3月 25, 2021 - 21_0069 Test Platform Conversion for LT3480 MSOP
		PCN21_0069_Form Material_Report Test Correlation Report
LT3480EMSE#PBF	量产
LT3480EMSE#TRPBF	量产
LT3480IMSE#PBF	量产
LT3480IMSE#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
LT3480EMSE#PBF	量产
LT3480EMSE#TRPBF	量产
LT3480HMSE#PBF	量产
LT3480HMSE#TRPBF	量产
LT3480IMSE#PBF	量产
LT3480IMSE#TRPBF	量产
LT3480MPMSE#PBF	量产
LT3480MPMSE#TRPBF	量产

这是最新版本的数据手册

硬件生态系统

部分模型	产品周期	描述
Circuit Monitors 1
LTC2960	推荐新设计使用	36V、纳安级电流、两输入电压监视器
Protection Switches & Controllers 2
LT4363	推荐新设计使用	具电流限制功能的高电压浪涌抑制器
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
压控振荡器(VCO) 1
LTC6909	量产	采用扩频调制、可提供 1 至 8 个输出的多相硅振荡器

部分模型	产品周期	描述
LTC2960	推荐新设计使用	36V、纳安级电流、两输入电压监视器
LT4363	推荐新设计使用	具电流限制功能的高电压浪涌抑制器
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^®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

LT3480EMSE Demo Board | (MSOP) 6.3V ≤ VIN ≤ 38V (60V Transients), VOUT = 5V @ 2A

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产品详情

Demonstration circuit 1091 is a monolithic step-down switching regulator featuring the LT3480 in the MSOP-10 exposed pad package. The operating frequency can be synchronized up to 2MHz. The demo board is designed for 5V/2A output from a 6.3V to 38V input with transients up to 60V. The wide input range of the LT3480 allows a variety of input sources. The typical sources are automotive batteries, wall adaptors and industrial supplies. The modes of operation (Burst Mode and fixed frequency) are jumper selectable.

资料

DC1091A - Demo Manual
2009/9/24

DC1091A - Schematic
2009/9/24

DC1091A - Design File
2009/9/24

LT3480EDD Demo Board | (DFN) EN55022 Compliant, Micropower, 6.3V ≤ VIN ≤ 38V (60V Transients), VOUT = 5V at 2A

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产品详情

Demonstration circuit 1212A-A is a monolithic step-down DC/DC switching regulatro featuring the LT3480 in the 3 × 3 DFN-10 package. The demo board provides 5V at 2A from a 6.3V to 38V input and has transient protection up to 60V. The demo boards default switching frequency is 800kHz, but the LT3480 has a SYNC pin which allows frequency synchronization to an external clock over a 250kHz to 2MHz range. The LT3480's quiescent current is 70uA, while the LT3685 has a 0.9mA quiescent current.

An EMC filter at the input makes the circuit compatible with EMC standard EN55022 Class B.

资料

DC1212A - Demo Manual
2009/9/24

DC1212A - Schematic
2009/9/24

DC1212A - Design File
2009/9/24

具有插件接口的LT3480高压降压稳压器板

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产品详情

演示电路1394A显示了LT3480高压降压稳压器如何与兼容LTC4098 USB的锂离子电池充电器一起使用，以设计一个双输入源电池充电器电路，该电路还根据可用电源通过LT3480、5V墙壁适配器或电池向负载供电。LTC4098与多个ADI开关稳压器相连，以提供高效率高压电源路径。LT3480的工作电压范围为8V至38V（60V瞬态），并提供2A电流，具体电压范围取决于模式和负载。

资料

DC1394A - Demo Manual
2009/9/24

DC1394A - Design File
2009/9/24

DC1394A - Schematic
2009/9/24

参考电路

查看参考设计详情

特性和优点

Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
Our reference designs are supported by an intuitive design tool set and IP
Our team can provide designs for quick prototypes that can speed time to market in the most complex applications