LTC3603
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LTC3603

2.5A、15V、单片式同步降压型稳压器

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Info: : 量产 tooltip
Info: : 量产 tooltip
产品详情
产品模型 8
特性
  • 宽输入电压范围:4.5V 至 15V
  • 2.5A 输出电流
  • 低 RDS(ON) 内部开关:45mΩ 和 85mΩ
  • 可编程频率:300kHz 至 3MHz
  • 低静态电流:75μA
  • 0.6V ±1% 基准可提供精确的低输出电压
  • 99% 最大占空比
  • 可调突发模式 (Burst Mode®) 箝位
  • 可同步至外部时钟
  • 电源良好输出电压监视器
  • 过热保护
  • 过压保护
  • 采用 16 引脚耐热性能增强型 MSOP 和 4mm x 4mm QFN 封装

 

更多细节
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LTC®3603 是一款高效率、单片式、同步、降压型 DC/DC 转换器,运用了一种恒定频率、电流模式架构。它采用 4.5V 至 15V 的工作输入电压范围,可提供 0.6V 至 14.5V 的可调稳定输出电压,并可输送高达 2.5A 的输出电流。具 45mΩ 接通电阻的内部同步电源开关提升了效率,并免除了增设一个外部肖特基二极管的需要。开关频率可由一个外部电阻器来设定,也可以同步至一个外部时钟。OPTI-LOOP® 补偿的运用使得能够在一个很宽的负载和输出电容值范围内优化瞬态响应。

LTC3603 可被配置为执行突发模式操作或强制连续操作。在轻负载条件下,强制连续操作可降低噪声和 RF 干扰,而突发模式操作则能够在轻负载时提供高效率。在突发模式操作中,突发箝位电平的外部控制使得能够根据应用的要求来调节输出电压纹波。

 


Applications

  • 负载点电源
  • 便携式仪器
  • 通信基础设施

 

产品模型 8

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

产品型号 引脚/封装图-中文版 文档 CAD 符号,脚注和 3D模型
LTC3603EMSE#PBF
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LTC3603EMSE#TRPBF
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LTC3603EUF#PBF
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LTC3603EUF#TRPBF
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LTC3603IMSE#PBF
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  • HTML
LTC3603IMSE#TRPBF
  • HTML
  • HTML
LTC3603IUF#PBF
  • HTML
  • HTML
LTC3603IUF#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

6月 5, 2024

- 24_0003

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

LTC3603EMSE#PBF

量产

LTC3603EMSE#TRPBF

量产

LTC3603IMSE#PBF

量产

LTC3603IMSE#TRPBF

量产

2月 4, 2020

- 20_0132

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

LTC3603EMSE#PBF

量产

LTC3603EMSE#TRPBF

量产

LTC3603IMSE#PBF

量产

LTC3603IMSE#TRPBF

量产

2月 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC3603EUF#PBF

量产

LTC3603EUF#TRPBF

量产

LTC3603IUF#PBF

量产

LTC3603IUF#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

6月 5, 2024

- 24_0003

arrow down

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

LTC3603EMSE#PBF

量产

LTC3603EMSE#TRPBF

量产

LTC3603IMSE#PBF

量产

LTC3603IMSE#TRPBF

量产

2月 4, 2020

- 20_0132

arrow down

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

LTC3603EMSE#PBF

量产

LTC3603EMSE#TRPBF

量产

LTC3603IMSE#PBF

量产

LTC3603IMSE#TRPBF

量产

2月 20, 2022

- 21_0269

arrow down

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

LTC3603EUF#PBF

量产

LTC3603EUF#TRPBF

量产

LTC3603IUF#PBF

量产

LTC3603IUF#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 2

reference details image

DC1445A

LTC3603EMSE Demo Board (MSOP) | 2.5A, 15V, Monolithic Synchronous Step-Down Regulator

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DC1445A

LTC3603EMSE Demo Board (MSOP) | 2.5A, 15V, Monolithic Synchronous Step-Down Regulator

LTC3603EMSE Demo Board (MSOP) | 2.5A, 15V, Monolithic Synchronous Step-Down Regulator

产品详情

Demonstration circuit 1445A is a step-down converter, using the LTC3603EMSE monolithic synchronous buck regulator in the MSOP package. The DC1445A has an input voltage range of 4.5V to 15V, and is capable of delivering up to 2.5A of output current. The output voltage of the DC1445A can be set as low as 0.6V, the reference voltage of the LTC3603EMSE. At low load currents, the DC1445A can operate in either noise sensitive applications, due to the capability of the LTC3603EMSE to operate in pulse-skipping mode, or in high efficiency applications, because the LTC3603EMSE can also operate in Burst Mode®.

reference details image

DC1442A

LTC3603EUF Demo Board (QFN) | 2.5A, 15V, Monolithic Synchronous Step-Down Regulator

zoom

DC1442A

LTC3603EUF Demo Board (QFN) | 2.5A, 15V, Monolithic Synchronous Step-Down Regulator

LTC3603EUF Demo Board (QFN) | 2.5A, 15V, Monolithic Synchronous Step-Down Regulator

产品详情

Demonstration circuit 1442A is a step-down converter, using the LTC3603EUF monolithic synchronous buck regulator in the 4 × 4 QFN package. The DC1442A has an input voltage range of 4.5V to 15V, and is capable of delivering up to 2.5A of output current. The output voltage of the DC1442A can be set as low as 0.6V, the reference voltage of the LTC3603EUF. At low load currents, the DC1442A can operate in either noise sensitive applications, due to the capability of the LTC3603EUF to operate in pulse-skipping mode, or in high efficiency applications, because the LTC3603EUF can also operate in Burst-Mode®. Because of the high switching frequency of the LTC3603EUF, which is programmable up to 3 MHz, the DC1442A uses low profile surface mount components.

工具和仿真

工具及仿真模型 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。

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 1

DK-DEV-5CGXC7NES Dev Kit

zoomopens a dialog

altera-cyclone-v-gx-development-kit-discontinued

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
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