LTC3646

量产

40V、1A、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：4.0V 至 40V
  • 1A 保证输出电流
  • 高效率：达 95%
  • 宽输出电压范围
    • LTC3646：2.0V 至 30V
    • LTC3646-1：0.6V 至 15V
  • 准确度达 ±1% 的基准电压
  • 内部或外部补偿
  • 开关频率可调和可同步：200kHz 至 3MHz
  • 可选择的高效率突发模式 (Burst Mode®) 操作或强制连续模式
  • 14 引脚 3mm x 4mm DFN 封装或耐热性能增强型 16 引脚 MSOP 封装
LTC3646
40V、1A、同步降压型稳压器
Efficiency Curve 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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软件资源

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硬件生态系统

部分模型 产品周期 描述
高压热插拔控制器 1
LTC4364
推荐新设计使用 具理想二极管的浪涌抑制器
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工具及仿真模型

LTspice 3

LTspice中提供以下器件型号：

  • LTC3646
  • LTC3646-1

LTpowerCAD 4

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
DC1731A-B

LTC3646-1 Demo Board (DFN) | 4V ≤ VIN ≤ 40V, VOUT = 3.3V or 5V @ 1A

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产品详情

Demonstration circuit 1731A-B is a DC/DC converter demo board using the LTC3646-1 monolithic synchronous buck regulator in the DFN package. The input voltage range is from 4V to 40V. The output voltage range of LTC3646-1 is 0.6V to 15V. It can deliver up to 1A of output current. At light load conditions, DC1731A can operate in Burst Mode® operation to improve the efficiency. The user can choose to use internal or external compensation. The switching frequency of LTC3646-1 is programmable from 200kHz to 3MHz. It can be synchronized to an external clock through the MODE/SYNC pin.

eval board
schematic 2
schematic 3
DC1820A-B

LTC3646-1 Demo Board (MSOP) | 4V ≤ VIN ≤ 40V, VOUT= 3.3V or 5V @ 1A

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产品详情

Demonstration circuit 1820A-A/1820A-B is a step-down DC/DC converter using LTC3646/LTC3646-1 monolithic synchronous buck regulator. The input voltage range is from 4V to 40V. The output voltage range of LTC3646 is 2V to 30V, for LTC3646-1 is 0.6V to 15V. It can deliver up to 1A of output current. At light load conditions, DC1820A can operate in Burst Mode® operation to improve the efficiency. The user can choose to use internal or external compensation. The switching frequency of LTC3646/LTC3646-1 is programmable from 200kHz to 3MHz. It can be synchronized to an external clock through the MODE/ SYNC pin. The LTC3646/LTC3646-1 data sheet must be read in conjunction with this demo manual prior to working on or modifying demonstration circuit 1820A.

eval board
schematic 4
DC1820A-A

LTC3646 Demo Board (MSOP) | 4V ≤ VIN ≤ 40V, VOUT = 3.3V or 5V @ 1A

立即购买 更多内容

产品详情

Demonstration circuit 1820A-A/1820A-B is a step-down DC/DC converter using LTC3646/LTC3646-1 monolithic synchronous buck regulator. The input voltage range is from 4V to 40V. The output voltage range of LTC3646 is 2V to 30V, for LTC3646-1 is 0.6V to 15V. It can deliver up to 1A of output current. At light load conditions, DC1820A can operate in Burst Mode® operation to improve the efficiency. The user can choose to use internal or external compensation. The switching frequency of LTC3646/LTC3646-1 is programmable from 200kHz to 3MHz. It can be synchronized to an external clock through the MODE/ SYNC pin. The LTC3646/LTC3646-1 data sheet must be read in conjunction with this demo manual prior to working on or modifying demonstration circuit 1820A.

eval board
schematic 5
DC1731A-A

LTC3646 Demo Board (DFN) | 4V ≤ VIN ≤ 40V, VOUT = 3.3V or 5V @ 1A

立即购买 更多内容

产品详情

Demonstration circuit 1731A-A is a DC/DC converter demo board using the LTC3646 monolithic synchronous buck regulator in the DFN package. The input voltage range is from 4V to 40V. The output voltage range of LTC3646 is 2V to 30V. It can deliver up to 1A of output current. At light load conditions, DC1731A can operate in Burst Mode® operation to improve the efficiency. The user can choose to use internal or external compensation. The switching frequency of LTC3646 is programmable from 200kHz to 3MHz. It can be synchronized to an external clock through the MODE/SYNC pin.
DC1731A-B
LTC3646-1 Demo Board (DFN) | 4V ≤ VIN ≤ 40V, VOUT = 3.3V or 5V @ 1A
DC1731A-A - Schematic
DC1820A-B
LTC3646-1 Demo Board (MSOP) | 4V ≤ VIN ≤ 40V, VOUT= 3.3V or 5V @ 1A
DC1820A-B diagram DC1820A-A - Schematic
DC1820A-A
LTC3646 Demo Board (MSOP) | 4V ≤ VIN ≤ 40V, VOUT = 3.3V or 5V @ 1A
DC1820A-A - Schematic
DC1731A-A
LTC3646 Demo Board (DFN) | 4V ≤ VIN ≤ 40V, VOUT = 3.3V or 5V @ 1A
DC1731A-A - Schematic

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