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LT3022

推荐用于新设计

1A、0.9V 至 10V、非常低压差线性稳压器

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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。
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概述

  • VIN 范围：0.9V 至 10V
  • 压差电压：145mV (典型值)
  • 输出电流：1A
  • 可调输出 (VREF = VOUT(MIN) = 200mV)
  • 固定输出电压: 1.2V、1.5V、1.8V
  • 采用低 ESR、陶瓷输出电容器 (最小值为 10μF) 时可保持稳定
  • 0.05% 典型负载调整率 (从 1mA 至 1A)
  • 静态电流：400μA (典型值)
  • 停机模式中的典型静态电流为 7.5μA
  • 电流限制保护
  • 反向电池保护 (无反向电流)
  • 具迟滞的热限制
  • 16 引脚 (5mm x 3mm) DFN 封装和 MSOP 封装

 

LT®3022 是一款非常低压差电压 (VLDO™) 线性稳压器，采用低至 0.9V 的单输入工作电源。该器件可提供高达 1A 的输出电流和 145mV 的典型压差电压。LT3022 非常适合于低输入电压至低输出电压应用，可提供与开关稳压器相当的电效率。稳压器利用小至 10μF 的低 ESR 陶瓷输出电容器优化了稳定性和瞬态响应。LT3022 的其他特点包括 0.05% 的典型电压调整率和 0.05% 的典型负载调整率。在停机模式中，静态电流通常下降至 7.5μA。内部保护电路包括反向电池保护、电流限制、具迟滞的热限制和反向电流保护。

LT3022 可用作一款可调型器件，并具有一个低至 200mV 基准的输出电压范围。也提供了三个固定输出电压: 1.2V、1.5V、1.8V。LT3022 稳压器采用耐热性能增强型扁平 (高度仅为 0.75mm) 16 引脚 (5mm x 3mm) DFN 封装和 MSOP 封装。

 


Applications

  • 高效率线性稳压器
  • 电池供电型系统
  • 逻辑电源
  • 用于开关电源的后置稳压器
  • 无线调制解调器
  • FPGA 内核电源

 
LT3022
1A、0.9V 至 10V、非常低压差线性稳压器
1.2V to 0.9V, 1A VLDO Regulator Minimum Input Voltage 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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软件资源

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硬件生态系统

部分模型 产品周期 描述
监控电路和复位器IC 1
LTC2917
量产 具 27 种可选门限和看门狗定时器的电压监控器
模数转换器(ADC) 1
LTC2991
推荐用于新设计 8 通道 I2C 电压、电流和温度监视器
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工具及仿真模型

LTspice 1

LTspice中提供以下器件型号：

  • LT3022
  • LT3022-1.2
  • LT3022-1.5
  • LT3022-1.8
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
schematic 5
DC932A

LT3022EDHC演示板 | VLDO线性稳压器，1V ≤ VIN ≤ 10V，VOUT = 0.9V/1.0V/1.2V/1.5V/1.8V (1A)

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产品详情

演示电路932A是一款可调1A线性稳压器，内置LT3022。LT3022是一款低压差(VLDO™)线性稳压器，采用低至0.9V的输入电源供电。该器件提供1A输出电流，具有145mV典型压差。LT3022非常适合低输入电压至低输出电压应用，可提供与开关稳压器相当的电效率。该演示板具有1V至10V的输入电压范围，并提供0.9V、1V、1.2V、1.5V、1.8V的跳线可选输出电压或低至200mV的用户定义值。该稳压器优化了稳定性和瞬态响应，具有小至10µF的低ESR陶瓷输出电容。其他LT3022特性包括0.05%典型线性调整率和0.05%典型负载调整率。关断时，静态电流通常降至7.5µA。内部保护电路包括电池反接保护、限流、带滞回的限热以及反向电流保护功能。


 
DC932A
LT3022EDHC演示板 | VLDO线性稳压器，1V ≤ VIN ≤ 10V，VOUT = 0.9V/1.0V/1.2V/1.5V/1.8V (1A)
DC932A Demo Board DC932A Demo Board DC932A Demo Board DC932A Demo Board DC932A - Schematic

参考电路

DC934A Demo Board for DK-DEV-5CSXC6N
DC934A Demo Board for DK-DEV-5CSXC6N
DK-DEV-5CSXC6N Dev Kit
DK-DEV-5CSXC6N Block Diagram
DK-DEV-5CSXC6N Power Tree
DK-DEV-5CSXC6N LTC Power Tree
Altera Cyclone V SoC Development Kit and SoC Embedded Design Suite 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
MAX 10 NEEK Dev Kit
MAX 10 NEEK Dev Kit
MAX 10 NEEK Block Diagram
MAX 10 NEEK Power Tree
MAX 10 NEEK 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
DK-DEV-5SGXEA7N Dev Kit
DK-DEV-5SGXEA7N Dev Kit
LTC Parts List
DK-DEV-5SGXEA7N Block Diagram
DK-DEV-5SGXEA7N Power Tree
DK-DEV-5SGXEA7N Power Tree No TI
Altera Stratix V GX 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
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
Stratix V Advanced System Development Board
Stratix V Advanced System Development Board
Stratix V Advanced System Development Board Block Diagram
Stratix V Advanced Systems Development Board Power Tree
Stratix V Advanced System Development Board 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 SoC Development Kit and SoC Embedded Design Suite
DC934A Demo Board for DK-DEV-5CSXC6N
DK-DEV-5CSXC6N Dev Kit
DK-DEV-5CSXC6N Block Diagram
DK-DEV-5CSXC6N Power Tree
DK-DEV-5CSXC6N LTC Power Tree
MAX 10 NEEK Development Kit
MAX 10 NEEK Dev Kit
MAX 10 NEEK Block Diagram
MAX 10 NEEK Power Tree
Altera Stratix V GX FPGA Development Kit
DK-DEV-5SGXEA7N Dev Kit
LTC Parts List
DK-DEV-5SGXEA7N Block Diagram
DK-DEV-5SGXEA7N Power Tree
DK-DEV-5SGXEA7N Power Tree No TI
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
Stratix V Advanced System Development Board
Stratix V Advanced System Development Board
Stratix V Advanced System Development Board Block Diagram
Stratix V Advanced Systems Development Board Power Tree

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