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LT1963

量产

1.5A、低噪声 、快速瞬态响应 LDO 稳压器

数据手册 产品选型表
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

  • 为实现快速瞬态响应而优化
  • 输出电流：1.5A
  • 压差电压：340mV
  • 低噪声：40μVRMS (10Hz 至 100kHz)
  • 1mA 静态电流
  • 无需保护二极管
  • 在压差模式中静态电流处于受控状态
  • 固定输出电压：1.5V、1.8V、2.5V、3.3V
  • 可调输出范围：1.21V 至 20V
  • 在停机模式中静态电流 <1μA
  • 可在采用 10μF 输出电容器时保持稳定
  • 反向电池保护
  • 无反向电流
  • 热限制
  • 采用 5 引脚 TO-220、DD、3 引脚 SOT-223、8 引脚 SO 和 16 引脚 TSSOP 封装

LT®1963 系列是低压差稳压器，专为实现快速瞬态响应而优化。该器件能提供 1.5A 的输出电流和一个 340mV 的压差电压。工作静态电流为 1mA，并在停机模式中减至 < 1μA。静态电流处于良好受控状态；与其他许多稳压器不同，此器件的静态电流在压差情况下不会增大。除了快速瞬态响应之外，LT1963 稳压器还拥有非常低的输出噪声，从而使其非常适合于敏感的 RF 电源应用。

输出电压范围为 1.21V 至 20V。LT1963 稳压器可在采用低至 10μF 的输出电容器时保持稳定。内部保护电路包括反向电池保护、电流限制、热限制和反向电流保护。该器件可提供 1.5V、1.8V、2.5V、3.3V 的固定输出电压，并可用作一款具 1.21V 基准电压的可调型器件。LT1963 稳压器采用 5 引脚 TO-220、DD 封装、3 引脚 SOT-223 封装、8 引脚 SO 封装和带裸露衬垫的 16 引脚 TSSOP 封装。

Features
LT1963 -
LT1963A 采用陶瓷型输出电容便可稳定工作

应用

  • 3.3V 至 2.5V 逻辑电源
  • 用于开关电源的后置稳压器
LT1963
1.5A、低噪声 、快速瞬态响应 LDO 稳压器
3.3V to 2.5V Regulator Dropout Voltage Product Package 1 Product Package 2 Product Package 3 Product Package 4 Product Package 5
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参考资料

数据手册 1

可靠性数据 1

用户手册 1

应用笔记 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
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：

  • LT1963
  • LT1963-1.5
  • LT1963-1.8
  • LT1963-2.5
  • LT1963-3.3
  • LT1963A
  • LT1963A-1.5
  • LT1963A-1.8
  • LT1963A-2.5
  • LT1963A-3.3
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
DC367A

LT1963ES8演示板 | 低噪声LDO稳压器 2.5V ≤ VIN ≤ 20V， VOUT = 1.21V/1.5V/1.8V/2.5V/3.3V (1.5A)

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产品详情

演示电路DC367A是一款低噪声微功耗稳压器，内置采用8引脚SO封装的1.5A LT1963。这些电路在电压控制振荡器、RF电源和大型系统中主要用作本地稳压器。DC367具有2.5V至20V的输入电压范围，在1.5A时提供跳线可选的1.2V/1.5V/1.8V/2.5V/3.3V输出电压。
DC367A
LT1963ES8演示板 | 低噪声LDO稳压器 2.5V ≤ VIN ≤ 20V， VOUT = 1.21V/1.5V/1.8V/2.5V/3.3V (1.5A)
DC367A Evaluation Board DC367A Evaluation Board - Top View DC367A Evaluation Board - Bottom View DC367A - Schematic

参考电路

DK-EMB-3C120N Dev Kit
DK-EMB-3C120N Dev Kit
DK-EMB-3C120N Block Diagram
DK-EMB-3C120N Power Tree
Altera Embedded Systems Development Kit, Cyclone III Edition 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
View 1
View 1
View 2
LTC Parts List
DK-N2EVAL-3C25N Block Diagram
Altera Nios II Embedded Evaluation Kit, Cyclone III Edition 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-DSP-3C120N Dev Kit
DK-DSP-3C120N Dev Kit
LTC Parts List
DK-DSP-3C120N Block Diagram
DK-DSP-3C120N Power Tree
Altera DSP Development Kit, Cyclone III Edition 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
TR4 Stratix IV Board
TR4 Stratix IV Board
LTC Parts List
TR4 Stratix IV Block Diagram
TR4 Stratix IV Power Tree
Terasic TR4 Stratix IV 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
DK-DEV-3C120N Dev Kit
DK-DEV-3C120N Dev Kit
LTC Parts List
DK-DEV-3C120N Block Diagram
DK-DEV-3C120N Power Tree
Altera Cyclone III 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
Altera Embedded Systems Development Kit, Cyclone III Edition
DK-EMB-3C120N Dev Kit
DK-EMB-3C120N Block Diagram
DK-EMB-3C120N Power Tree
Altera Nios II Embedded Evaluation Kit, Cyclone III Edition
View 1
View 2
LTC Parts List
DK-N2EVAL-3C25N Block Diagram
Altera DSP Development Kit, Cyclone III Edition
DK-DSP-3C120N Dev Kit
LTC Parts List
DK-DSP-3C120N Block Diagram
DK-DSP-3C120N Power Tree
Terasic TR4 Stratix IV Board
TR4 Stratix IV Board
LTC Parts List
TR4 Stratix IV Block Diagram
TR4 Stratix IV Power Tree
Altera Cyclone III FPGA Development Kit
DK-DEV-3C120N Dev Kit
LTC Parts List
DK-DEV-3C120N Block Diagram
DK-DEV-3C120N Power Tree

最新评论

2 年前
HMC7044 输出时钟有个几十KHz的杂散
2 年前
LT1963
6 年前
LT1963AES8-3.3
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