LT3009

推荐用于新设计

3μA IQ、20mA 低压差线性稳压器

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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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概述

  • 超低静态电流：3μA
  • 输入电压范围：1.6V 至 20V
  • 输出电流：20mA
  • 压差电压：280mV
  • 可调输出 (VADJ = VOUT(MIN) = 600mV)
  • 固定输出电压：1.2V、1.5V、1.8V、2.5V、3.3V、5V
  • 输出容差：±2% (在整个负载、输入电压和温度范围内)
  • 可在采用低 ESR、陶瓷输出电容器 (最小值为 1μF) 时稳定
  • 停机电流：< 1μA
  • 电流限制保护
  • 反向电池保护
  • 热限制保护
  • 8 引脚 SC70 和 2mm x 2mm DFN 封装

 

LT®3009 系列是微功率、低压差电压 (LDO) 线性稳压器。这些器件可提供 20mA 输出电流和一个 280mV 的压差电压。无负载静态电流为 3μA。当负载增加时，接地引脚电流保持在低于 5% 输出电流的水平上。在停机模式中，静态电流
LT3009 稳压器利用低 ESR 陶瓷电容器 (所需的最小电容值仅为 1μF) 来优化稳定性和瞬态响应。这些稳压器不像其他稳压器所常见的那样需要额外的 ESR。内部保护电路包括电流限制、热限制、反向电池保护和反向电流保护。

对于那些需要中等输出驱动能力以及超低待机功耗的应用而言，LT3009 系列是理想的选择。该器件可提供 1.2V、1.5V、1.8V、2.5V、3.3V 和 5V 固定输出电压，而且也可以用作一款具一个低至 600mV 基准的输出电压范围的可调型器件。LT3009 采用 6 引脚 DFN 和 8 引脚 SC70 封装。


Applications

  • 低电流电池供电型系统
  • 保活电源
  • 远程监视
    • 公用事业表
    • 旅馆门锁

 
LT3009
3μA IQ、20mA 低压差线性稳压器
3.3V, 20mA Supply with Shutdown Dropout Voltage/Quiescent 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 1

技术文章 3

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硬件生态系统

部分模型 产品周期 描述
保护开关和控制器 2
LTC4412
推荐用于新设计 采用 ThinSOT 封装的低损耗 PowerPath 控制器
LTC2955
推荐用于新设计 具自动接通功能的按钮接通 / 关断控制器
监控电路和复位器IC 1
LTC2934
量产 具电源故障输出的超低功率可调监控器
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工具及仿真模型

LTspice 2

LTspice中提供以下器件型号：

  • LT3009
  • LT3009-1.2
  • LT3009-1.8
  • LT3009-2.5
  • LT3009-3.3
  • LT3009-5
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
DC1156A

LT3009EDC Demo Board | Micropower Low Dropout Linear Regulator, 1.6V ≤ VIN ≤ 20V, VOUT = 1.2V/1.5V/1.8V/2.0V/2.5V/3.3V/5V/Adjustable @ 20mA

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产品详情

Demonstration circuit 1156A is an ultralow quiescent current and low dropout voltage linear regulator featuring the 20mA output current LT3009 in the  which comes in the 2mm × 2mm DFN package. The DC1156A has an input voltage range from 1.6V to 20V and has jumper-selectable output voltages of 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, 5V or a user-defined value.


With the 3µA quiescent current of the LT3009, the DC1156A is ideal for supplying power to low current battery-powered systems, keep-alive power supply and remote monitoring utility meters and hotel door locks.
DC1156A
LT3009EDC Demo Board | Micropower Low Dropout Linear Regulator, 1.6V ≤ VIN ≤ 20V, VOUT = 1.2V/1.5V/1.8V/2.0V/2.5V/3.3V/5V/Adjustable @ 20mA
DC1156A - Schematic

参考电路

DK-DEV-5CEA7N Dev Kit
DK-DEV-5CEA7N Dev Kit
DK-DEV-5CEA7N Dev Kit LTC Parts List
DK-DEV-5CEA7N Block Diagram
DK-DEV-5CEA7N Dev Kit Schematic
DK-DEV-5CEA7N Power Tree
Altera Cyclone V E 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 E Development Kit
DK-DEV-5CEA7N Dev Kit
DK-DEV-5CEA7N Dev Kit LTC Parts List
DK-DEV-5CEA7N Block Diagram
DK-DEV-5CEA7N Dev Kit Schematic
DK-DEV-5CEA7N 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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