LTC3880

推荐新设计使用

具有数字电源系统管理功能的双输出 PolyPhase 降压型 DC/DC控制器

数据手册 (Rev. H) 产品选型表
产品模型
16
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

  • PMBus/I2C兼容串行接口
  • 遥测回读包括VIN、IIN、VOUT、IOUT、温度和故障
  • 可编程电压、限流、数字软启停、时序控制、裕量调节、OV/UV和频率同步（250kHz至1MHz）
  • 整个温度范围内±0.5%的输出电压精度
  • 集成16位ADC
  • 具有ECC和故障记录功能的内部EEPROM
  • 集成功能强大的N通道MOSFET栅极驱动器

    电源转换

    • 宽 VIN 范围：4.5V 至 24V
    • VOUT 范围：0.5V 至 5.4V（在 VOUT0为 4V）
    • 模拟电流模式控制回路
    • 精确 PolyPhase® 均流，适用于多达 6 相
    • 采用 40 引脚 (6mm × 6mm) QFN 封装
    • 符合汽车应用的 AEC-Q100 标准
LTC3880
具有数字电源系统管理功能的双输出 PolyPhase 降压型 DC/DC控制器
Efficiency and Power Loss vs Load Current Product Package 2 Product Package 1
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参考资料

数据手册 1

可靠性数据 1

用户手册 9

应用笔记 7

技术文章 16

信息 1

产品信息 2

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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
电流检测放大器 1
LTC2990
推荐新设计使用 四路 I2C 电压、电流和温度监视器
浪涌抑制器、过压和过流保护 1
LT4363
推荐新设计使用 具电流限制功能的高电压浪涌抑制器
数字电源系统管理器 1
LTC2974
推荐新设计使用 具有精确输出电流的4通道PMBus电源系统管理器
双电源监控器 1
LTC2960
推荐新设计使用 36V、纳安级电流、两输入电压监视器
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工具及仿真模型

LTspice 3

LTspice中提供以下器件型号：

  • LTC3880
  • LTC3880-1

Linduino 3

LTpowerCAD 6

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。

LTpowerCAD

LTpowerCAD®是一种电源设计程序，它选择功率级元件，提供详细效率信息，显示快速环路波特图稳定性和负载瞬态分析，并可导出至LTspice进行仿真。

评估套件

eval board
schematic 1
schematic 2
DC1962C

电源系统管理演示板 (PowerStick) | 集成LTC2977、LTC2974和LTC3880的14电源管理器件[需要DC1613]

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产品详情

DC1962C演示板适用于：
具有精确输出电流测量功能的4通道PMBus电源系统管理器LTC2974
带数字电源系统管理功能的双通道输出多相降压DC/DC控制器LTC3880
具有精确输出电压测量功能的8通道PMBus电源系统管理器LTC2977

eval board
schematic 3
DC2088A

LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT Range: 0.8V to 1.8V @ Up to 50A

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产品详情

Demonstration circuit 2088A is a high current, high density, two-phase single output synchronous buck converter featuring the LTC3880EUJ, a dual-phase current mode controller. The LTC3880 has the PMBus interface and power system management functions.


 


eval board
schematic 4
DC1590B-B

LTC3880EUJ 演示板 (DCR) | VIN 范围：6.5V 至 24V，VOUT0 = 0.5V 至 4V （20A时），VOUT1 = 0.5V 至 5V （20A时），由 PMBus 控制，与 DC1613A 一起使用

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产品详情

演示电路 1590B 是一款双输出同步降压转换器，采用了具有数字电源系统管理功能的双输出峰值电流模式控制器 LTC3880EUJ。该板有两种可用版本：DC1590B-A 检测流过检测电阻的输出电流且默认开关频率为 350kHz，而 DC1590B-B 利用电感 DCR 检测输出电流且默认开关频率为 425kHz。任何一种版本都可以使用 LTC3880EUJ-1（允许用户从外部电源向IC提供偏置电源）代替 LTC3880EUJ 进行填充。这些板提供两个可编程输出，各为 20A。各个输出的出厂默认设置为 1.8V。

eval board
schematic 5
DC2089A-A

LTC3880EUJ/LTC3870EUFD RSENSE演示板| 7V ≤ VIN≤ 14V；VOUT = 0.8V至1.8V (80A)

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产品详情

演示电路2089A是一款高电流、高效率、三相同步降压转换器，内置双相电流模式控制器LTC3880EUJ和双相从控制器LTC3870EUFD。LTC3880具有PMBus接口和电源系统管理功能。

此演示板的输入范围为7V至14V，且输出电压可在0.8V至1.8V范围内进行编程。4相操作时输出电流可高达80A。DC2089A有两个版本：DC2089A-A使用电流检测电阻，而DC2089A–B具有DCR电流检测功能。输出电压的出厂默认设置为1.0V。

可以使用PC重新配置LTC3880的电源管理功能，例如：标称 VOUT、裕量设定点、OV/UV限值、温度故障限值、时序参数、故障日志、故障响应、GPIO和其他功能。

eval board
schematic 6
DC1709A

LTC3880/-1 & LTC3887/-1 Demo Board I Programming Clamshell Socketed Demo Board

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产品详情

DC1709A: Demo Board for the LTC3880 Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management.


 


eval board
schematic 7
schematic 8
schematic 9
schematic 10
schematic 11
DC2089A-B

LTC3880EUJ/LTC3870EUFD DCR SENSE Demo Board | 7V ≤ VIN ≤ 14V; VOUT = 0.8V to 1.8V @ 80A

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产品详情

Demonstration circuit 2089A is a high current, high efficiency, poly-phase synchronous buck converter featuring the LTC3880EUJ, a dual-phase current mode controller, and the LTC3870EUFD, a dual-phase slave controller. The LTC3880 has the PMBus interface and power system management functions.


The input range of this board is from 7V to 14V, and the output voltage can be programmed from 0.8V to 1.8V. The output current is up to 80A for 4-phase operation. The DC2089A has two versions, the DC2089A-A uses a current sense resistor, while the DC2089A–B has DCR current sensing. The factory default setting for the output voltage is 1.0V.


You can use a PC to reconfigure the power management features of the LTC3880 such as: nominal VOUT, margin set points, OV/UV limits, temperature fault limits, sequencing parameters, the fault log, fault responses, GPIO and other functionality.

eval board
schematic 12
DC1740A-A

LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT0: 0.5V to 4.1V @ 80A, PMBus Controlled, Works w/ DC1613

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产品详情

Demonstration circuit 1740A is a PolyPhase® synchronous buck converter featuring the LTC3880EUJ, a dual-phase current mode controller with PMBus interface and digital power system management functions. The DC1740A-A is a two chip 4-phase single-output configuration. The default output setting is VOUT0 = 1.2V/80A.


The DC1740A powers up to default settings and produces power based on configuration resistors or with non-volatile memory (NVM) settings without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter aspects of the LTC3880. To fully explore the extensive digital power management features of the parts, download the GUI software LTpowerPlay™ onto your PC and use LTC’s I2C/SMBus/PMBus Dongle DC1613A to connect to the board.

eval board
schematic 13
DC1753B-B

LTC3880EUJ Demo Board (DCR Sense) I Dual Phase Single Output PMBus Buck, 6.5V ≤ VIN ≤ 24V, VOUT = 0.5V to 3.3V @ 40A

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产品详情

Demonstration circuit 1753B-B is a dual phase single-output, synchronous buck converter featuring the LTC3880EUJ, a dual phase current mode controller with digital power system management. It operates with an input voltage range of 6.5V to 24V. The demo board senses inductor current with the inductor DCR and has a default switching frequency of 425kHz. The output voltage of the board can be programmed from 0.5V to 3.3V, with output current up to 40A. The factory default setting for the output is 1.8V. 

eval board
schematic 14
DC1753B-A

LTC3880EUJ Demo Board (RSENSE) I Dual Phase Single Output PMBus Buck, 6.5V ≤ VIN≤ 24V, VOUT = 0.5V to 3.3V @ 40A

立即购买 更多内容

产品详情

Demonstration circuit 1753B-A is a dual phase single-output, synchronous buck converter featuring the LTC3880EUJ, a dual phase current mode controller with digital power system management. It operates with an input voltage range of 6.5V to 24V. The demo board senses inductor current across a sense resistor and has a default switching frequency of 350kHz. The output voltage of the board can be programmed from 0.5V to 3.3V, with output current up to 40A. The factory default setting for the output is 1.8V. 


 


eval board
schematic 15
DC1740A-B

LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT0: 0.5V to 4.1V @ 20A, VOUT1: 0.5V to 4.1V @ 60A, PMBus Controlled, Works w/ DC1613

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产品详情

Demonstration circuit 1740A is a PolyPhase® synchronous buck converter featuring the LTC3880EUJ, a dual-phase current mode controller with PMBus interface and digital power system management functions. The DC1740A-B is a two chip 3 + 1 phase dual-output configuration. The default output settings are VOUT0 = 1.5V/20A and VOUT1 = 1.2V/60A.


The DC1740A powers up to default settings and produces power based on configuration resistors or with non-volatile memory (NVM) settings without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter aspects of the LTC3880. To fully explore the extensive digital power management features of the parts, download the GUI software LTpowerPlay™ onto your PC and use LTC’s I2C/SMBus/PMBus Dongle DC1613A to connect to the board.

eval board
schematic 16
DC2052A

LTC3880EUJ/LTC3883EUH | 3相演示板，VIN范围：6.5V至14V，VOUT 范围：0.5V至1.8V (60A)，PMBus控制，与DC1613加密狗配合使用

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产品详情

演示电路2052A是一款三相单路输出同步降压转换器，内置双相电流模式控制器LTC3880EUJ和具有输入电流检测功能的单相电流模式控制器LTC3883EUH。两个器件均具有PMBus接口和电源系统管理功能。

该板的输入电压范围为6.5V至14V。输出电压可在0.5V至1.8V范围内进行编程，总输出电流高达60A。输出电压的出厂默认设置为1.0V。

eval board
schematic 17
schematic 18
DC1962C-KIT

电源系统管理入门套件（包括DC1962C、DC1613A）

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产品详情

DC1962C-KIT演示板适用于：
具有精确输出电压测量功能的8通道PMBus电源系统管理器LTC2977
具有精确输出电流测量功能的4通道PMBus电源系统管理器LTC2974
带数字电源系统管理功能的双通道输出多相降压DC/DC控制器LTC3880


 


eval board
schematic 19
DC1590B-A

LTC3880EUJ Demo Board (RSENSE) | VIN Range: 6.5V to 24V, VOUT0 = 0.5V to 4V @ 20A, VOUT1 = 0.5V to 5V @ 20A, PMBus Controlled, Works with DC1613A

立即购买 更多内容

产品详情

Demonstration circuit 1590B is a dual output synchronous buck converter featuring the LTC3880EUJ, a dual output peak current mode controller with digital power system management. There are two versions of the board available: DC1590B-A senses the output current across a sense resistor and has a default switching frequency of 350kHz, and DC1590B-B senses output current with the inductor DCR and has a default switching frequency of 425kHz. Either version can be populated with the LTC3880EUJ-1 (which allows the user to provide bias power to the IC from an external power supply) instead of the LTC3880EUJ. These boards provide two programmable outputs of 20A each. The factory default settings are 1.8V for each output.

eval board
schematic 20
DC1753A-A

LTC3880EUJ Demo Board (RSENSE) | Dual Phase Single Output, PMBus Buck, 6.5V ≤ VIN ≤ 24V, VOUT = 0.5V to 3.3V @ 40A

立即购买 更多内容

产品详情

Demonstration circuit 1753A is a dual phase single-output, synchronous buck converter featuring the LTC3880EUJ, a dual phase current mode controller with digital power management. The DC1753A-A senses inductor current across a sense resistor. Default switching Freq = 350kHz. The demo board can be populated with the LTC3880EUJ-1, which allows the user to provide bias power to the IC from an external power supply. The output voltage of the board can be programmed from 0.5V to 3.3V, with output current up to 40A. The factory default setting for the output is 1.8V.
DC1962C
电源系统管理演示板 (PowerStick) | 集成LTC2977、LTC2974和LTC3880的14电源管理器件[需要DC1613]
DC1962C - Schematic DC1962 Demoboard
DC2088A
LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT Range: 0.8V to 1.8V @ Up to 50A
DC2088A - Schematic
DC1590B-B
LTC3880EUJ 演示板 (DCR) | VIN 范围：6.5V 至 24V，VOUT0 = 0.5V 至 4V （20A时），VOUT1 = 0.5V 至 5V （20A时），由 PMBus 控制，与 DC1613A 一起使用
DC1590B Image
DC2089A-A
LTC3880EUJ/LTC3870EUFD RSENSE演示板| 7V ≤ VIN≤ 14V；VOUT = 0.8V至1.8V (80A)
DC2089A - Schematic
DC1709A
LTC3880/-1 & LTC3887/-1 Demo Board I Programming Clamshell Socketed Demo Board
DC1709A - Schematic
DC2089A-B
LTC3880EUJ/LTC3870EUFD DCR SENSE Demo Board | 7V ≤ VIN ≤ 14V; VOUT = 0.8V to 1.8V @ 80A
DC2089A-B Demo Board DC2089A-B Demo Board DC2089A-B Demo Board DC2089A-B Demo Board DC2089A - Schematic
DC1740A-A
LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT0: 0.5V to 4.1V @ 80A, PMBus Controlled, Works w/ DC1613
DC1740A Schematic
DC1753B-B
LTC3880EUJ Demo Board (DCR Sense) I Dual Phase Single Output PMBus Buck, 6.5V ≤ VIN ≤ 24V, VOUT = 0.5V to 3.3V @ 40A
DC1753B - Schematic
DC1753B-A
LTC3880EUJ Demo Board (RSENSE) I Dual Phase Single Output PMBus Buck, 6.5V ≤ VIN≤ 24V, VOUT = 0.5V to 3.3V @ 40A
DC1753B - Schematic
DC1740A-B
LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT0: 0.5V to 4.1V @ 20A, VOUT1: 0.5V to 4.1V @ 60A, PMBus Controlled, Works w/ DC1613
DC1740A Schematic
DC2052A
LTC3880EUJ/LTC3883EUH | 3相演示板，VIN范围：6.5V至14V，VOUT 范围：0.5V至1.8V (60A)，PMBus控制，与DC1613加密狗配合使用
DC2052A - Schematic
DC1962C-KIT
电源系统管理入门套件（包括DC1962C、DC1613A）
DC1962C - Schematic DC1962 Demoboard
DC1590B-A
LTC3880EUJ Demo Board (RSENSE) | VIN Range: 6.5V to 24V, VOUT0 = 0.5V to 4V @ 20A, VOUT1 = 0.5V to 5V @ 20A, PMBus Controlled, Works with DC1613A
DC1590B Image
DC1753A-A
LTC3880EUJ Demo Board (RSENSE) | Dual Phase Single Output, PMBus Buck, 6.5V ≤ VIN ≤ 24V, VOUT = 0.5V to 3.3V @ 40A
DC1753A-A - Schematic

参考电路

DK-DEV-5AGTD7N Dev Kit
DK-DEV-5AGTD7N Dev Kit
LTC Parts List
DK-DEV-5AGTD7N Block Diagram
DK-DEV-5AGTD7N Block Diagram
DK-DEV-5AGTD7N Power Tree
Altera Arria 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
DK-START-5AGXB3N Starter Kit
DK-START-5AGXB3N Starter Kit
LTC Parts List
DK-START-5AGXB3N Block Diagram
DK-START-5AGXB3N Power Tree
DK-START-5AGXB3N Power Tree No TI
Altera Arria V GX Starter 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-5SGSMD5N DSP Dev Kit
DK-DEV-5SGSMD5N DSP Dev Kit
LTC Parts List
DK-DEV-5SGSMD5N Block Diagram
DK-DEV-5SGSMD5N Power Tree
Altera DSP Development Kit, Stratix V 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-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
Altera Arria V GT FPGA Development Kit
DK-DEV-5AGTD7N Dev Kit
LTC Parts List
DK-DEV-5AGTD7N Block Diagram
DK-DEV-5AGTD7N Block Diagram
DK-DEV-5AGTD7N Power Tree
Altera Arria V GX Starter Kit
DK-START-5AGXB3N Starter Kit
LTC Parts List
DK-START-5AGXB3N Block Diagram
DK-START-5AGXB3N Power Tree
DK-START-5AGXB3N Power Tree No TI
Altera DSP Development Kit, Stratix V Edition
DK-DEV-5SGSMD5N DSP Dev Kit
LTC Parts List
DK-DEV-5SGSMD5N Block Diagram
DK-DEV-5SGSMD5N 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

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