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LT3085

推荐新设计使用

可调 500mA 单电阻器低压差稳压器

数据手册 (Rev. C) 产品选型表
产品模型
14
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

  • 可能并行输出，以实现更高的电力和更好的散热
  • 输出电流：500mA
  • 单个电阻设置输出电压
  • 1%的SET引脚电流初始精度
  • 可调输出电压达0V
  • 限流值在温度范围内保持恒定
  • 低输出噪声：40μVRMS（10Hz至100kHz）
  • 宽输入电压范围：1.2V至36V
  • 低压差：275mV
  • < 1mV 负载调整率
  • < 0.001%/V 线性调整率
  • 最小负载电流：0.5mA
  • 使用最低的2.2μF陶瓷电容保持稳定
  • 限流折返保护和过温保护
  • 8引脚MSOP和6引脚2mm × 3mm DFN封装
  • 通过AEC-Q100汽车应用认证
LT3085
可调 500mA 单电阻器低压差稳压器
Variable Output Voltage 500mA Supply 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 1

技术文章 1

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硬件生态系统

部分模型 产品周期 描述
多通道电压输出数模转换器 1
LTC2655
量产 具10ppm/ºC 最大值基准的四通道、I2C、16 位 / 12 位、轨至轨 DAC
硅振荡器 1
LTC6902
量产 具扩频频率调制功能的多相振荡器
数字温度传感器 1
LTC2991
推荐新设计使用 8 通道 I2C 电压、电流和温度监视器
正线性稳压器(LDO) 1
LT1763
推荐新设计使用 500mA、低噪声、LDO 微功率稳压器
Modal heading
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工具及仿真模型

LTspice 2

LTspice中提供以下器件型号：

  • LT3085
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。

评估套件

eval board
schematic 1
schematic 2
schematic 3
schematic 4
DC1401A

LT3085EDCB演示板 | 单电阻、低压差稳压器，1.7V ≤ VIN ≤ 25V，VOUT= 1.2V/1.8V/2.5V/3.3V/5V/可调(500mA)

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产品详情

演示电路1401A是一款可调500mA线性稳压器，内置LT3085。LT3085构建作为精密电流源和电压跟随器，可用于许多需要高达500mA输出电流、将输出电压调低至0V且无需散热器的应用。配合多个电源使用时，该器件会引出调整管的集电极以实现低压差工作。该演示板采用1.7V至25V的输入电压范围（最大输出电压受限于输出电容的电压额定值）并提供1.2V、1.8V、2.5V、3.3V、5V的跳线可选输出电压或用户定义值。


为使LT3085正常调节电压，控制引脚(VCONTROL)上的电压必须比输出电压约大1.2V以上。


 


 
DC1401A
LT3085EDCB演示板 | 单电阻、低压差稳压器，1.7V ≤ VIN ≤ 25V，VOUT= 1.2V/1.8V/2.5V/3.3V/5V/可调(500mA)
DC1401A Evaluation Board DC1401A Evaluation Board - Top View DC1401A Evaluation Board - Bottom View DC1401A - Schematic

参考电路

DK-DEV-5CGTD9N Dev Kit
DK-DEV-5CGTD9N Dev Kit
DK-DEV-5CGTD9N Block Diagram
DK-DEV-5CGTD9N Power Tree
DK-DEV-5CGTD9N Power Tree No TI DDR Regulator
Altera Cyclone V GT FPGA Development Kit 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
SoCKit Dev Kit
SoCKit Dev Kit
SoCKit Block Diagram
SoCKit Development Kit Power Tree
Arrow/Terasic SoCKit Development Kit 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
Stratix 10 GX Signal Integrity Development Kit
Stratix 10 GX Signal Integrity Development Kit
Stratix 10 GX Signal Integrity Development Kit Block Diagram
Stratix 10 GX Signal Integrity Development Kit (Actual Power Tree representative of components used on board)
Stratix 10 GX Signal Integrity Development Kit (updated alternate Simplified Power Tree: 12Vin to required I/O voltages)
Stratix 10 GX Signal Integrity Development Kit 参考设计

查看参考设计详情

特性和优点

  • Analog Devices has worked closely with Intel PSG to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • The validated power solutions include uModules power products that address time and space constraints while delivering high efficiency, reliability, and low noise.
  • The actual power tree represents the best solution at time of design.
  • A recommended power tree has also been included to present the ideal solution at time of Stratix 10 GX SI development kit release. An updated alternate version of the power tree represents the latest solutions available from Analog Devices. For many applications, an intermediate rail is not ideal, so recommendations for an alternate power tree that allows for direct power conversion from 12V input is provided below.
DE1-SoC Dev Kit
DE1-SoC Dev Kit
DE1-SoC Block Diagram
DE1-SoC Power Tree
Terasic DE1-SoC Development Kit 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 GT FPGA Development Kit
DK-DEV-5CGTD9N Dev Kit
DK-DEV-5CGTD9N Block Diagram
DK-DEV-5CGTD9N Power Tree
DK-DEV-5CGTD9N Power Tree No TI DDR Regulator
Arrow/Terasic SoCKit Development Kit
SoCKit Dev Kit
SoCKit Block Diagram
SoCKit Development Kit Power Tree
Stratix 10 GX Signal Integrity Development Kit
Stratix 10 GX Signal Integrity Development Kit
Stratix 10 GX Signal Integrity Development Kit Block Diagram
Stratix 10 GX Signal Integrity Development Kit (Actual Power Tree representative of components used on board)
Stratix 10 GX Signal Integrity Development Kit (updated alternate Simplified Power Tree: 12Vin to required I/O voltages)
Terasic DE1-SoC Development Kit
DE1-SoC Dev Kit
DE1-SoC Block Diagram
DE1-SoC Power Tree

最新评论

6 年前
RE: LT3085输出问题
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