LT3020

推荐用于新设计

100mA、低电压、非常低压差线性稳压器

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

  • VIN 范围:0.9V 至 10V
  • 最小输入电压:0.9V
  • 压差电压:150mV (典型值)
  • 输出电流:100mA
  • 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 2.2μF) 时可保持稳定
  • 0.2% 典型负载调整率 (从 1mA 至 100mA)
  • 静态电流:120μA (典型值)
  • 停机模式中的典型静态电流为 3μA
  • 电流限制保护
  • 反向电池保护
  • 无反向电流
  • 具迟滞的热限制
  • 8 引脚 (3mm x 3mm) DFN 封装和 MSOP 封装

LT®3020 是一款非常低压差电压 (VLDOTM) 线性稳压器,其采用低至 0.9V 的输入电源工作。该器件可提供 100mA 的输出电流和 150mV 的典型压差电压。LT3020 非常适合低输入电压至低输出电压应用,并提供了可与开关稳压器相媲美的电效率。

LT3020 稳压器采用低 ESR、小至 2.2μF 的陶瓷输出电容器优化了稳定性和瞬态响应。LT3020 的其他特点包括 0% 的典型电压调整率和 0.2% 的典型负载调整率。在停机模式中,静态电流减小至 3μA。 

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。LT3020 可用作一款输出可调型器件,并具有一个低至 200mV 基准的输出范围。另外,该器件还提供了 1.2V、1.5V 和 1.8V 三种固定输出电压。

LT3020 稳压器采用具裸露衬垫的扁平 (仅高 0.75mm) 8 引脚 (3mm x 3mm) DFN 封装和 8 引脚 MSOP 封装。


Applications
  • 低电流稳压器
  • 电池供电型系统
  • 蜂窝电话
  • 寻呼机
  • 无线调制解调器

LT3020
100mA、低电压、非常低压差线性稳压器
1.8V to 1.5V, 100mA VLDO Regulator Minimum Input Voltage Product Package 1 Product Package 2 Product Package 3 Product Package 4
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工具及仿真模型

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
ADMV96S-WGBE-EK1

60 GHz Wireless Connector

特性和优点

  • Allows evaluation and prototyping of 60 GHz wireless data links to replace traditional mechanical connectors in moving joints
  • 1 Gbps Ethernet interface on both sides of the wireless data link
  • Fully programmable system allowing ultimate flexibility for custom developments
  • Open-source software stack for firmware development  
  • Open-source GUI for system configuration, monitoring, and control

产品详情

The ADMV96S-WGBE-EK1 is a complete evaluation and prototyping system for 60 GHz wireless data links. It consists of a pair of receiver and transmitter boards with a 1Gbp Ethernet interface on each side of the wireless link.

The 60 GHz wireless link is implemented by the ADMV9615 and ADMV9525 modules. These are coupled with a SerDes device which translates the modules’ SGMII interface to RGMII so that it can be connected to an ADIN1300 industrial low latency and low power 1 Gbps Ethernet PHY. This enables each side of the wireless link to act as an Ethernet port and essentially create a seamless wire-like connection between two ends of an Ethernet cable.

The on-board MAX32650 ultralow power ARM® Cortex®-M4 microcontroller controls the system’s operation and implements the algorithms to configure the wireless link in real time so that optimal link quality is constantly maintained over temperature and various operating conditions. An open-source software stack is provided for firmware development as well as reference applications. The MAX32650 can be programmed through a programming port which can also be used for firmware debugging.

The two sides of the wireless link are mounted on an adjustable rail so that the system can be configured and tested for various distances between the links. Each side of the link is powered from an external 12 V power supply.

An open-source GUI is provided for system configuration, monitoring, and control from a host PC.

APPLICATIONS

  • 60 GHz wireless data links for industrial and medical high data rate applications
  • High speed data for rotating applications, such as slip rings and magnetic resonance imaging systems
  • Autonomous guided vehicles
  • Mechanical Connector replacement

eval board
DC687A

LT3020EDD演示板 | 低电压VLDO线性稳压器,1V ≤ VIN ≤ 10V,VOUT = 1.2V/1.5V/1.8V (100mA)

产品详情

演示电路687A是一款使用LT3020线性稳压器的低输入电压和超低压差电源,LT3020采用小型8引脚DFN封装。DC687A具有1V至10V的输入电压范围以及0.2V至10V减去压差的输出电压范围,能够提供最大100mA电流。由于LT3020具有0.2V基准电压,DC687A能够为极低电压应用供电,如(相对)高电流基准电压源。由于LT3020使用低ESR陶瓷输出电容也能保持稳定,因此DC687A使用陶瓷电容。

LT3020数据手册提供完整的器件、操作说明和应用信息。必须将数据手册与演示电路DC687A的演示手册配合阅读。LT3020采用8引脚MSOP和3mm x 3mm DFN两种封装组装,IC底部带有裸露焊盘。为实现较大散热性能,适当设计电路板布局至关重要。

ADMV96S-WGBE-EK1
60 GHz Wireless Connector
ADMV96S-WGBE-EK1-Block-Diagram ADMV96S-WGBE-EK1 Angle Projection ADMV96S-WGBE-EK1 Side Projection
DC687A
LT3020EDD演示板 | 低电压VLDO线性稳压器,1V ≤ VIN ≤ 10V,VOUT = 1.2V/1.5V/1.8V (100mA)
DC687A - Schematic DC687A Application Circuit

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