LTC3603

量产

2.5A、15V、单片式同步降压型稳压器

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产品技术资料帮助

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。
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产品详情

  • 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

 
LTC3603
2.5A、15V、单片式同步降压型稳压器
3.3V, 2.5A, 1MHz Step-Down Regulator Efficiency and Power Loss vs Load Current Product Package 1 Product Package 2
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参考资料

数据手册 1

可靠性数据 1

用户手册 2

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硬件生态系统

部分模型 产品周期 描述
低功耗比较器 1
LTC1540
量产 具有基准的毫微功率比较器
硅振荡器 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
数字电源系统管理器 1
LTC2974
推荐新设计使用 具有精确输出电流的4通道PMBus电源系统管理器
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
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工具及仿真模型

LTspice 2

LTspice中提供以下器件型号：

  • LTC3603

LTpowerCAD 2

LTspice

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。

LTpowerCAD

LTpowerCAD®是一种电源设计程序，它选择功率级元件，提供详细效率信息，显示快速环路波特图稳定性和负载瞬态分析，并可导出至LTspice进行仿真。

评估套件

eval board
schematic 1
DC1445A

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

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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®.

eval board
schematic 2
DC1442A

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

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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.
DC1445A
LTC3603EMSE Demo Board (MSOP) | 2.5A, 15V, Monolithic Synchronous Step-Down Regulator
DC1445A - Schematic
DC1442A
LTC3603EUF Demo Board (QFN) | 2.5A, 15V, Monolithic Synchronous Step-Down Regulator
DC1442A - Schematic

参考电路

DK-DEV-5CGXC7NES Dev Kit
DK-DEV-5CGXC7NES Dev Kit
LTC Parts List
DK-DEV-5CGXC7NES Block Diagram
DK-DEV-5CGXC7NES Block Diagram
DK-DEV-5CGXC7NES Power Tree
Altera Cyclone V GX Development Kit (Discontinued) 参考设计

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
Altera Cyclone V GX Development Kit (Discontinued)
DK-DEV-5CGXC7NES Dev Kit
LTC Parts List
DK-DEV-5CGXC7NES Block Diagram
DK-DEV-5CGXC7NES Block Diagram
DK-DEV-5CGXC7NES Power Tree

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