LT3509
Info: : 量产
searchIcon
cartIcon

LT3509

双通道、36V、700mA 降压型稳压器

更多 showmore-icon

Info: : 量产 tooltip
Info: : 量产 tooltip
产品详情
产品模型 10
特性
  • 两个具有内部电源开关的 700mA 开关稳压器
  • 3.6V 至 36V 的宽工作范围
  • 过压闭锁功能可保护电路免遭 60V 电源瞬态电压的损坏
  • 抗短路性能强
  • 低压差电压95% 的最大占空比
  • 可在整个频率范围内实现同步的 300kHz 至 2.2MHz 可调开关频率
  • 采用小的电感器和陶瓷电容器
  • 集成升压二极管
  • 内部补偿
  • 耐热性能增强型 14 引脚 (4mm x 3mm) DFN 和 16 引脚 MSOP 封装

更多细节
show more Icon

LT®3509 是一款双通道、电流模式、降压型开关稳压器,具有各能够提供 700mA 输出电流的内部电源开关。该稳压器为严酷环境中的多电源轨系统提供了一款紧凑而坚固的解决方案。它具备多项保护功能,包括过压闭锁和逐周期电流限制。热停机电路提供了额外的保护功能。环路补偿元件和升压二极管集成在片内。开关频率由单个外部电阻器设定。另外,也可进行外部同步。高的最大开关频率允许使用小的电感器和陶瓷电容器以实现低纹波。高于 AM 频段的恒定频率运作避免了对无线电接收的干扰,从而使得 LT3509 非常适合于汽车应用。每个稳压器都具有一个独立的停机和软起动控制引脚。当两个转换器均被断电时,公共电路将进入一种低电流停机状态。


Applications

  • 汽车电子
  • 工业控制
  • 墙上变压器调节
  • 网络设备
  • CPU、DSP 或 FPGA 电源

产品模型 10

产品技术资料帮助

close icon

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

产品型号 引脚/封装图-中文版 文档 CAD 符号,脚注和 3D模型
LT3509EDE#PBF
  • HTML
  • HTML
LT3509EDE#TRPBF
  • HTML
  • HTML
LT3509EMSE#PBF
  • HTML
  • HTML
LT3509EMSE#TRPBF
  • HTML
  • HTML
LT3509HMSE#PBF
  • HTML
  • HTML
LT3509HMSE#TRPBF
  • HTML
  • HTML
LT3509IDE#PBF
  • HTML
  • HTML
LT3509IDE#TRPBF
  • HTML
  • HTML
LT3509IMSE#PBF
  • HTML
  • HTML
LT3509IMSE#TRPBF
  • HTML
  • HTML

根据型号筛选

reset

重置过滤器

产品型号

产品生命周期

PCN

2月 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

10月 11, 2022

- 22_0244

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LT3509EMSE#PBF

量产

LT3509EMSE#TRPBF

量产

LT3509HMSE#PBF

量产

LT3509HMSE#TRPBF

量产

LT3509IMSE#PBF

量产

LT3509IMSE#TRPBF

量产

2月 4, 2020

- 20_0132

Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

LT3509EMSE#PBF

量产

LT3509EMSE#TRPBF

量产

LT3509HMSE#PBF

量产

LT3509HMSE#TRPBF

量产

LT3509IMSE#PBF

量产

LT3509IMSE#TRPBF

量产

4月 18, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

LT3509HMSE#PBF

量产

LT3509HMSE#TRPBF

量产

LT3509IMSE#PBF

量产

LT3509IMSE#TRPBF

量产

根据型号筛选

reset

重置过滤器

产品型号

产品生命周期

PCN

2月 20, 2022

- 21_0269

arrow down

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

10月 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LT3509EMSE#PBF

量产

LT3509EMSE#TRPBF

量产

LT3509HMSE#PBF

量产

LT3509HMSE#TRPBF

量产

LT3509IMSE#PBF

量产

LT3509IMSE#TRPBF

量产

2月 4, 2020

- 20_0132

arrow down

Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC

LT3509EMSE#PBF

量产

LT3509EMSE#TRPBF

量产

LT3509HMSE#PBF

量产

LT3509HMSE#TRPBF

量产

LT3509IMSE#PBF

量产

LT3509IMSE#TRPBF

量产

4月 18, 2022

- 22_0050

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

LT3509HMSE#PBF

量产

LT3509HMSE#TRPBF

量产

LT3509IMSE#PBF

量产

LT3509IMSE#TRPBF

量产

软件和型号相关生态系统

软件和型号相关生态系统

评估套件

评估套件 1

reference details image

DC1248A

LT3509EDE Demo Board | 6.5V ≤ VIN ≤ 36V (60V Transients), VOUT1 = 5V @ 0.7A, VOUT2 = 3.3V @ 0.7A

zoom

DC1248A

LT3509EDE Demo Board | 6.5V ≤ VIN ≤ 36V (60V Transients), VOUT1 = 5V @ 0.7A, VOUT2 = 3.3V @ 0.7A

LT3509EDE Demo Board | 6.5V ≤ VIN ≤ 36V (60V Transients), VOUT1 = 5V @ 0.7A, VOUT2 = 3.3V @ 0.7A

产品详情

Demonstration circuit 1248 is a dual monolithic buck regulator featuring the LT3509. The demo circuit is designed for 5V@700mA and 3.3V@700mA output from a 6.5V to 36V input. The input voltage can go up to 60V without damaging the part. The switching frequency can be set from 300kHz to 2.2MHz by a single external resistor, and it is synchronizable over the full range. The power switches, the compensation components and the boost diodes are all integrated into the silicon. The shutdown and soft start function is independent for each channel. The current mode control scheme creates fast transient response and good loop stability. The part has overvoltage lockout, cycle by cycle current limit and thermal shutdown. DA pin can further protect the silicon under fault conditions by sensing the diode current.


 


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:

1步:下载并在计算机上安装LTspice

2步:单击下面的链接,下载演示电路。

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。

参考电路

参考电路 2

DC934A Demo Board for DK-DEV-5CSXC6N

zoomopens a dialog

altera-cyclone-v-soc-development-kit-and-soc-embedded-design-suite

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
查看参考设计详情 external link
Arria V SoC Development Kit

zoomopens a dialog

altera-arria-v-soc-development-kit-and-soc-embedded-design-suite

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
查看参考设计详情 external link
最新评论

最新评论

需要发起讨论吗? 没有关于 lt3509的相关讨论?是否需要发起讨论?
在论坛上发起讨论

近期浏览