LTC3888-1

推荐新设计使用

带数字电源系统管理功能的双回路8相降压DC/DC控制器

数据手册 (Rev. D) 产品选型表
产品模型
4
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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产品详情

  • 与 PMBus/I2C 兼容的串行接口
    • 监控电压、电流、温度和故障
    • 数字可编程 VOUT、容限, UV、OV、限流值、软启停和时序监控
  • 可扩展到 16 相以上
  • 4.5V ≤ VIN ≤ 26.5V, 0.3V ≤ VOUT ≤ 3.45V
  • ±输出电压精度为 0.5％
  • 可编程 PWM 环路补偿
  • 精确 PolyPhase® 均流
  • 带 ECC 和故障记录功能的内部 EEPROM
  • DrMOS 输出电流监控器接口
  • DrMOS 温度/故障总线接口
  • DrMOS 栅极驱动电源监控器
  • 负载阶越仿真
  • 250kHz 至 1MHz 的内部或外部 PWM 时钟
  • 52 引脚 (5mm × 8mm) QFN 封装
  • 符合汽车应用的 AEC-Q100 标准
LTC3888-1
带数字电源系统管理功能的双回路8相降压DC/DC控制器
LTC3888_LTC3888-1_LTC3888-2 Functional Block Diagram LTC3888/LTC3888-1/LTC3888-2 Application Circuit LTC3888 Pin Configuration LTC3888-1 Pin Confiruration LTC3888-2 Pin Confiruration LTC3888/LTC3888-1/LTC3888-2 Pin Configuration LTC3888/LTC3888-1/LTC3888-2 Performance Graph
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参考资料

数据手册 1

用户手册 2

应用笔记 7

技术文章 1

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添加至 myAnalog

将产品添加到myAnalog 的现有项目或新项目中（接收通知）。

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工具及仿真模型

LTspice

LTspice中提供以下器件型号：

  • LTC3888
  • LTC3888-1

IBIS 模型 1

LTpowerPlay®

LTpowerPlay®是一款功能强大且基于Windows的开发环境，支持凌力尔特的数字电源系统管理(PSM)产品。

打开工具
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
DC2888A-A/
DC2888A-B

Evaluating the LTC3888/LTC3888-1, 8-Phase, Single Output Synchronous Buck Converter with Power System Management

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特性和优点

  • Input voltage range: 7 V to 14 V
  • Output voltage VOUT Max output current: 400 A
  • Number of phases: 8
  • Current sense
  • Temperature monitor
  • PM bus compliant with digital power system management

产品详情

Demonstration circuit DC2888A-A/DC2888A-B is an 8-phase single- output, high efficiency, high density, synchronous buck converter with 7 V to 14 V input range. The output can supply up to 400 A maximum load current. The demo board showcases one LTC3888/LTC3888-1 working with eight LTC7051. The LTC3888/ LTC3888-1 is a PMBus-compliant dual loop 8-phase step-down DC/DC controller with digital power system management. LTC7051 is an integrated smart power stage with current sense and temperature monitor. Refer to the LTC3888/LTC3888-1 and LTC7051 data sheets for detailed information.

DC2888A-A/DC2888A-B powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay ™ on your PC and use Analog Devices' I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows to reconfigure the part on the fly and store the configuration in electrically erasable programmable read-only memory (EEPROM), and view the telemetry of voltage, current, temperature, and fault status.

eval board
schematic 4
schematic 5
schematic 6
DC2652A-B

LTC3888-1演示板 | 具有电源系统管理功能的8相、双输出同步降压转换器

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产品详情

演示电路2652A-B是一款8相双路输出、高效率、高密度、同步降压转换器，具有7V至14V输入电压范围。具有1V输出时，每个输出可提供高达120A的最大负载电流。该演示板用于演示LTC3888-1，它是一款具有数字电源系统管理功能的PMBus兼容双环路8相降压DC/DC控制器。LTC3888-1用于和DrMOS器件配套使用，后者提供输出电流检测和温度监控器。有关更多详细信息，请参见LTC3888-1数据手册。

DC2652A-B上电至默认设置并基于配置电阻（或使用其非易失性存储器中的设置）产生电源，无需任何串行总线通信。这样可轻松评估DC/DC转换器。如需全面了解该器件的电源系统广泛管理特性，请用电脑下载GUI软件LTpowerPlay™，并通过ADI 的I2C/SMBus/PMBus加密狗DC1613A连接到板上。LTpowerPlay允许用户重新配置联机器件，将配置存储在EEPROM中，并查看电压、电流、温度和故障状态的遥测功能。

下载GUI
可从以下位置下载软件：LTpowerPlay
有关LTpowerPlay的更多详细信息和说明，请参考演示手册中的《LTpowerPlay快速启动程序》。
DC2888A-A/
DC2888A-B
Evaluating the LTC3888/LTC3888-1, 8-Phase, Single Output Synchronous Buck Converter with Power System Management
DC2888A-A Evaluation Board Angle DC2888A-A Evaluation Board Top DC2888A-A Evaluation Board Bottom
DC2652A-B
LTC3888-1演示板 | 具有电源系统管理功能的8相、双输出同步降压转换器
DC2652A-B Evaluation Board DC2652A-B Evaluation Board - Top View DC2652A-B Evaluation Board - Bottom View

参考电路

Intel Agilex 7 FPGA F-series Development Kit (2x F-Tile)
Intel Agilex 7 FPGA F-series Development Kit (2x F-Tile)
Intel Agilex 7 FPGA F-series Development Kit (2x F-Tile) 参考设计

Altera FPGA

查看参考设计详情

特性和优点

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • 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.
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) Power Tree
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) Power Tree
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) 参考设计

Altera FPGA

查看参考设计详情

特性和优点

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • 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.

使用部分

视频

  • lazy blur
    VIDEO · 0001-01-01
    设计、分析并验证您的ADI电源解决方案
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) Power Tree
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) Power Tree
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) 参考设计

Altera FPGA

查看参考设计详情

特性和优点

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • 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.
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile) 参考设计

Altera FPGA

查看参考设计详情

特性和优点

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • 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.
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)
Intel Agilex 7 FPGA F-series Development Kit (2x F-Tile)
Altera FPGA
Intel Agilex 7 FPGA F-series Development Kit (2x F-Tile)
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic)
Altera FPGA
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) Power Tree
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile)
Altera FPGA
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) Power Tree
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)
Altera FPGA
Intel Agilex 7 FPGA F-series Transceiver-SoC Development Kit (P-Tile & E-Tile)
Versal HBM Non-Hardware Verified Design
Versal HBM Diagram

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