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ADP125

推荐用于新设计

使用外部分压器的5.5V输入、500 mA、低静态电流、CMOS线性调节器

数据手册 (Rev. D) 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

  • 输入电压范围：2.3 V至5.5 V
  • 最大输出电流：500 mA
  • 固定和可调输出电压版本
  • 初始精度：1%
  • 提供多达31种固定输出电压选项：1.75 V至3.3 V
  • 可调输出电压范围：0.8 V至5.0 V
  • 极低压差：130 mV
  • 低静态电流：45 μA
  • 低关断电流：< 1 μA
  • 出色的PSRR性能：60 dB (100 kHz)
  • 出色的负载/线路瞬态响应
  • 欲了解更多特性，请参考数据手册

ADP124/ADP125均为低静态电流、低压差线性调节器，采用2.3 V至5.5 V输入电压工作，提供高达500 mA的输出电流。驱动500 mA负载时压差仅为130 mV；低压差特性不仅可提高功效，而且能使器件在较宽的输入电压范围工作。

500 mA负载时静态电流低至210 μA，因此ADP124/ADP125非常适合电池供电的便携式设备使用。ADP124可提供1.75 V至3.3 V范围内的31种固定输出电压。ADP125是ADP124的可调版本，可通过外部分压器在0.8 V至5.0 V范围内设置输出电压。ADP124/ADP125经过专门设计，利用1 μF小陶瓷输入和输出电容便可稳定工作，适合高性能、空间受限应用的要求。

ADP124/ADP125具有内部软启动功能，启动时间恒定为350 μs。短路保护和热过载保护电路可以防止器件在不利条件下受损。ADP124/ADP125采用8引脚裸露焊盘MSOP封装。与标准MSOP封装相比，裸露焊盘MSOP封装热阻(θJA)更低。凭借低热阻封装，ADP124/ADP125可以满足多种便携式应用的需求，同时还能较大幅度地限制结温升高。

应用
  • 数码相机和音频设备
  • 便携式电池供电设备
  • 自动抄表(AMR)仪表
  • GPS和定位管理单元
  • 医疗仪器
  • 负载点电源
ADP125
使用外部分压器的5.5V输入、500 mA、低静态电流、CMOS线性调节器
ADP125 Functional Block Diagram ADP125 Pin Configuration
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参考资料

数据手册 1

用户手册 1

应用笔记 2

技术文章 1

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软件资源

器件驱动器 1

硬件生态系统

部分模型 产品周期 描述
LT1763
推荐用于新设计 500mA、低噪声、LDO 微功率稳压器
LT3085
推荐用于新设计 可调 500mA 单电阻器低压差稳压器
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工具及仿真模型

LTspice

LTspice中提供以下器件型号：

  • ADP125
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-ADP125

ADP125评估板

立即购买 更多内容

产品详情

这些评估板用于演示线性调节器ADP125的功能。

只需一个电压源、一个电压表、一个电流表和一些负载电阻，就可以完成简单的器件测量，如线路和负载调整率、压差、地电流等。

EVAL-ADP125
ADP125评估板

参考电路

Artix US+ Rail Consolidation – Minimum Rails (AU10P/15P) Power Tree
Artix US+ Rail Consolidation – Minimum Rails (AU10P/15P) Power Tree
Artix US+ Rail Consolidation - Minimum Rails (AU20P/25P) Power Tree
Artix UltraScale+ 参考设计

用于AU10/15P和AU20/25P的最低供电轨——非硬件验证设计

查看参考设计详情

特性和优点

  • Xilinx Artix® UltraScale+™ devices are the industry’s only cost-optimized FPGAs based on an advanced, production-proven 16nm architecture for best-in-class performance/watt.

  • Analog Devices, Inc. supports power delivery solutions for the Artix Ultrascale+ low-cost designs. Monolithic solutions are used to power Xilinx FPGA and/or SoC rails as well as other system rails. These regulators are highly integrated discrete solutions optimized for cost, efficiency and footprint.

  • ADI provides supporting documentation including power schematics, layout, LTpowerPlanner® and applicable LTpowerPlay® configuration files to enable you to validate the power solution for your application seamlessly.

  • For a complete list power designs and use cases, please contact your local FAE.

  • Key Power for full management devices are used as follows:

    • LTC3307A
    • LTC3309A
    • ADP125
    • LTC3617 (Optional DDR)
    • LTC3618
    • ADM1186 (Optional Monitoring & Sequencing)
Versal HBM Diagram
Versal HBM Diagram
Versal HBM Non-Hardware Verified Design 参考设计

查看参考设计详情

特性和优点

  • The Versal™ HBM series features heterogeneous integration of fast memory, secure connectivity, and adaptive compute to eliminate processing and memory bottlenecks for memory-bound, compute-intensive workloads such as machine learning, database acceleration, next-generation firewalls, and advanced network testers. Analog Devices has worked closely AMD to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. For a complete list  power designs and use cases, please contact your local local FAE.
  • ADI has also completed a complete power evaluation report for Mid-High Voltage rails. For a complete report please submit your interest here.

Key power regulators are used for this device as follows:

  • LTC3888-1
  • LTC7051
  • LTC3633A
  • LTC7200S
  • LTC7151S
  • LT8652
  • ADP125
  • LTC3617 (Optional)
  • LTC3618 (Optional)
Artix 7 – Single Stage Power Solution
Artix 7 – Single Stage Power Solution
Xilinx Artix 7 Non-Hardware Verified Design 参考设计

查看参考设计详情

特性和优点

  • Xilinx Artix 7™ Artix™-7 devices provide high performance-per-watt fabric, transceiver line rates, DSP processing, and AMS integration in a cost-optimized FPGA. This family is the best value for a variety of cost and power-sensitive applications including software-defined radio, machine vision cameras, and low-end wireless backhaul.
  • 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
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
  • For a complete list  power designs and use cases, please contact your local FAE.

Key power regulators are used for this device as follows:

  • MAX77542
  • MAX38912
  • ADP125
Xilinx Spartan 7
Xilinx Spartan 7
Xilinx Spartan 7: Non-Hardware Verified Design 参考设计

查看参考设计详情

特性和优点

  • Spartan™ 7 devices offers exceptional performance per watt, along with small form factor packaging to meet the most stringent requirements.  These devices are ideally suited for industrial, consumer, and automotive applications including any-to-any connectivity, sensor fusion, and embedded vision.
  • Analog Devices has worked closely Xilinx to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. For a complete list  power designs and use cases, please contact your local FAE.

Key power regulators are used for this device as follows:

  • MAX77542
  • ADP125
Artix UltraScale+
用于AU10/15P和AU20/25P的最低供电轨——非硬件验证设计
Artix US+ Rail Consolidation – Minimum Rails (AU10P/15P) Power Tree
Artix US+ Rail Consolidation - Minimum Rails (AU20P/25P) Power Tree
Versal HBM Non-Hardware Verified Design
Versal HBM Diagram
Xilinx Artix 7 Non-Hardware Verified Design
Artix 7 – Single Stage Power Solution
Xilinx Spartan 7: Non-Hardware Verified Design
Xilinx Spartan 7

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