LTC3612
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LTC3612

3A、4MHz 单片同步降压型 DC/DC 转换器

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Info: : 量产 tooltip
Info: : 量产 tooltip
产品详情
产品模型 22
特性
  • 3A 输出电流
  • 2.25V 至 5.5V 输入电压范围
  • 低输出纹波 Burst Mode® 运行:IQ = 70μA
  • ±输出电压精度为 1%
  • 输出电压低达 0.6V
  • 高效率:高达 95%
  • 低压差运行:100% 占空比
  • 关断电流:≤1μA
  • 可调开关频率:高达 4MHz
  • 可编程的软启动
  • 具有内部补偿功能的可选有源电压定位(AVP)
  • 具有可调脉冲钳位的可选脉冲跳跃/强制连续/Burst Mode 运行
  • 用于启动跟踪或外部参考的输入
  • DDR内存模式,IOUT = ±1.5A
  • 采用耐热性能增强型 20 引脚  (3mm × 4mm) QFN 和 TSSOP 封装
  • 符合汽车应用的 AEC-Q100 标准
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LTC3612是一款采用电流模式、恒频架构的低静态电流单芯片同步降压型稳压器。休眠模式下的空载直流电源电流仅70μA,同时在空载时保持输出电压(突发工作模式),关断时电流降至零。LTC3612的输入电源电压范围为2.25V至5.5V,非常适合单节锂离子电池以及固定低电压输入应用。100%占空比能力支持低压差工作模式,从而延长了电池供电系统的工作时间。

工作频率可在外部编程至4MHz,支持小型表面贴装电感。对于开关噪声敏感型应用,LTC3612可以与高达4MHz的外部时钟同步。

LTC3612提供强制连续工作模式,可降低噪声和RF干扰。可调补偿功能可针对各种负载和输出电容优化瞬态响应。

内部同步开关提高了效率,并且无需外部续流二极管,从而节省了外部组件和电路板空间。LTC3612采用无引线20引脚、3mm × 4mm QFN封装,或耐热性能增强型、20引脚TSSOP封装。

应用

  • 负载点电源
  • 分布式电源
  • 便携式计算机系统
  • DDR存储器端接
  • 手持式设备
产品模型 22

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

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根据型号筛选

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产品型号

产品生命周期

PCN

4月 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC3612EFE#PBF

量产

LTC3612EFE#TRPBF

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6月 30, 2020

- 20_0244

Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3612EFE#PBF

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LTC3612EFE#TRPBF

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LTC3612EUDC#PBF

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根据型号筛选

reset

重置过滤器

产品型号

产品生命周期

PCN

4月 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC3612EFE#PBF

量产

LTC3612EFE#TRPBF

量产

LTC3612HFE#PBF

量产

LTC3612HFE#TRPBF

量产

LTC3612IFE#PBF

量产

LTC3612IFE#TRPBF

量产

LTC3612MPFE#PBF

量产

LTC3612MPFE#TRPBF

量产

6月 30, 2020

- 20_0244

arrow down

Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3612EFE#PBF

量产

LTC3612EFE#TRPBF

量产

LTC3612EUDC#PBF

量产

LTC3612EUDC#TRPBF

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LTC3612HFE#PBF

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LTC3612MPUDC#PBF

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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

DC1310A

LTC3612EUDC Demo Board | 3A, 4MHz, Monolithic Synchronous Step-Down Regulator, QFN-20 Pkg

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DC1310A

LTC3612EUDC Demo Board | 3A, 4MHz, Monolithic Synchronous Step-Down Regulator, QFN-20 Pkg

LTC3612EUDC Demo Board | 3A, 4MHz, Monolithic Synchronous Step-Down Regulator, QFN-20 Pkg

产品详情

Demo Circuit 1310 is a high efficiency, high frequency step-down converter, incorporating the LTC3612 monolithic synchronous regulator. The DC1310A has an input voltage range of 2.25V to 5.5V, and is capable of delivering up to 3A of output current. The output voltage of the DC1310A can be set as low as 0.6V, the reference voltage of the LTC3612. The operating frequency range of the DC1310A is either set to a fixed 2.25 MHz by connecting the frequency pin to SVin, set by an external resistor, or synchronized to an external clock, with a range up to 4 MHz. At low load currents, the DC1310A can operate in either noise sensitive applications, due to the capability of the LTC3612 to operate in pulse-skipping mode, or in high efficiency applications, because the LTC3612 also has Burst-Mode capability.

 

reference details image

DC1574A

LTC3612EFE Demo Board | 3A, 4MHz, Monolithic Synchronous Step-Down Regulator, TSSOP-16E Pkg

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DC1574A

LTC3612EFE Demo Board | 3A, 4MHz, Monolithic Synchronous Step-Down Regulator, TSSOP-16E Pkg

LTC3612EFE Demo Board | 3A, 4MHz, Monolithic Synchronous Step-Down Regulator, TSSOP-16E Pkg

产品详情

Demo Circuit 1574 is a high efficiency, high frequency step-down converter, incorporating the LTC3612 monolithic synchronous regulator. The DC1574A has an input voltage range of 2.25V to 5.5V, and is capable of delivering up to 3A of output current. The output voltage of the DC1574A can be set as low as 0.6V, the reference voltage of the LTC3612. The operating frequency range of the DC1574A is either set to a fixed 2.25 MHz by connecting the frequency pin to SVIN, set by an external resistor, or synchronized to an external clock, with a range up to 4 MHz. At low load currents, the DC1574A can operate in either noise sensitive applications, due to the capability of the LTC3612 to operate in pulse-skipping mode, or in high efficiency applications, because the LTC3612 also has Burst-Mode capability. The Burst Mode clamp can be set externally.

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 4

DE-10 Nano Kit

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terasic-de10-nano-kit

terasic-de10-nano-kit

参考设计

tooltip Info:参考设计

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
MAX 10 NEEK Dev Kit

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max-10-neek-development-kit

max-10-neek-development-kit

参考设计

tooltip Info:参考设计

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
DE0 Nano SoC Dev Platform - Top View

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terasic-de0-nano-soc-kit-atlas-soc-kit

terasic-de0-nano-soc-kit-atlas-soc-kit

参考设计

tooltip Info:参考设计

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
Stratix V Advanced System Development Board

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stratix-v-advanced-system-development-board

stratix-v-advanced-system-development-board

参考设计

tooltip Info:参考设计

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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