LTC3880 / LTC3880-1 - 具数字电源系统管理功能的双输出多相降压型 DC/DC 控制器
LTC®3880 / LTC3880-1 是一款双通道、多相 DC/DC 同步降压型开关稳压控制器，具有一个符合基于 I2C 的 PMBus 标准的串行接口。该控制器运用了一种恒定频率、电流模式架构，该器件得到了具有易用型图形用户界面 (GUI) 的 LTpowerPlayTM 软件开发系统的支持。 开关频率、输出电压和器件地址可采用外部配置电阻器来设置。此外，参数还可以通过数字接口来设定或存储于 EEPROM 中。电压、电流、内部 / 外部温度和故障状态则可通过总线接口来回读。 LTC3880 内置了一个 5V 线性稳压器，而 LTC3880-1 则采用了一个外部 5V 电源以尽可能地降低功率损失。看以下与 LTC3887 的比较。
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特点
典型应用  | 应用
封装信息  |
| Part Number | Package | Temp | Price(1-99) | Price (1k)* | RoHS | 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
|---|---|---|---|---|---|---|---|---|---|---|
| LTC3880EUJ-1#PBF | 6x6 QFN-40 | E | $7.64 | $5.35 | ||||||
| LTC3880EUJ-1#TRPBF | 6x6 QFN-40 | E | $5.41 | |||||||
| LTC3880EUJ#PBF | 6x6 QFN-40 | E | $7.64 | $5.35 | ||||||
| LTC3880EUJ#TRPBF | 6x6 QFN-40 | E | $5.41 | |||||||
| LTC3880IUJ-1#PBF | 6x6 QFN-40 | I | $8.86 | $6.20 | ||||||
| LTC3880IUJ-1#TRPBF | 6x6 QFN-40 | I | $6.26 | |||||||
| LTC3880IUJ#PBF | 6x6 QFN-40 | I | $8.86 | $6.20 | ||||||
| LTC3880IUJ#TRPBF | 6x6 QFN-40 | I | $6.26 | |||||||
| LTC3880EUJ-1#PBF | 6x6 QFN-40 | E | $7.64 | $5.35 | ||||||
| LTC3880EUJ-1#TRPBF | 6x6 QFN-40 | E | $5.41 | |||||||
| LTC3880EUJ#PBF | 6x6 QFN-40 | E | $7.64 | $5.35 | ||||||
| LTC3880EUJ#TRPBF | 6x6 QFN-40 | E | $5.41 | |||||||
| LTC3880IUJ-1#PBF | 6x6 QFN-40 | I | $8.86 | $6.20 | ||||||
| LTC3880IUJ-1#TRPBF | 6x6 QFN-40 | I | $6.26 | |||||||
| LTC3880IUJ#PBF | 6x6 QFN-40 | I | $8.86 | $6.20 | ||||||
| LTC3880IUJ#TRPBF | 6x6 QFN-40 | I | $6.26 |
演示电路板
| Part Number | Description | Price |
|---|---|---|
| DC1590B-A | LTC3880EUJ Demo Board (RSENSE) I Vin Range: 6.5V to 24V, VOUT0 = 0.5V to 4V @ 20A, VOUT1 = 0.5V to 5V @ 20A, PMBus Controlled, works w/ DC1613A | $200.00 |
| DC1590B-B | LTC3880EUJ Demo Board (DCR) I Vin Range: 6.5V to 24V, VOUT0 = 0.5V to 4V @ 20A, VOUT1 = 0.5V to 5V @ 20A, PMBus Controlled, works w/ DC1613A | $200.00 |
| DC1709A | LTC3880/-1 Demo Board I Programming Clamshell Socketed Demo Board | $125.00 |
| DC1740A-A | LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT0: 0.5V to 4.1V @ 80A, PMBus Controlled, works w/ DC1613 | $250.00 |
| 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 | $250.00 |
| DC1753A-A | LTC3880EUJ Demo Board (RSENSE) | Dual Phase Single Output, PMBus Buck, 6.5V ≤ VIN ≤ 24V, Vout = 0.5V to 3.3V @ 40A | $200.00 |
| DC1753B-A | LTC3880EUJ Demo Board (RSENSE) I Dual Phase Single Output PMBus Buck, 6.5V ≤ Vin ≤ 24V, Vout = 0.5V to 3.3V @ 40A | Contact Factory |
| 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 | Contact Factory |
| DC1962C | Power System Management Demo Board (PowerStick): 14-Supply Management with LTC2977, LTC2974 & LTC3880 [Requires DC1613] | $95.00 |
| DC1962C-KIT | Starter Kit for Power System Management [Includes DC1962C, DC1613A] | $125.00 |
| DC2052A | LTC3880EUJ/LTC3883EUH, 3-Phase Demo Board, Vin Range: 6.5V to 14V, Vout Range: 0.5V to 1.8V @ 60A, PMBus Controlled, works w/ DC1613 Dongle | $250.00 |
| DC2088A | LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT Range: 0.8V to 1.8V @ Up to 50A | $250.00 |
| DC2089A-A | LTC3880EUJ/LTC3870EUFD RSENSE Demo Board | 7V ≤ VIN ≤ 14V; VOUT = 0.8V to 1.8V @ 80A | Contact Factory |
| DC2089A-B | LTC3880EUJ/LTC3870EUFD DCR SENSE Demo Board | 7V ≤ VIN ≤ 14V; VOUT = 0.8V to 1.8V @ 80A | $275.00 |
| Part Number | Description | Price |
|---|---|---|
| DC1613A | USB-to-PMBus Controller for Use with LTpowerPlay | $50.00 |
| DC2026C | Linduino One Isolated Arduino-Compatible Demonstration Board | $75.00 |
| DC2294A | DC2294A - PSM Linduino One Shield [requires DC2026, CA2978] | $50.00 |
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1590B-A | LTC3880EUJ Demo Board (RSENSE) I Vin Range: 6.5V to 24V, VOUT0 = 0.5V to 4V @ 20A, VOUT1 = 0.5V to 5V @ 20A, PMBus Controlled, works w/ DC1613A | $200.00 |
| DC1590B-B | LTC3880EUJ Demo Board (DCR) I Vin Range: 6.5V to 24V, VOUT0 = 0.5V to 4V @ 20A, VOUT1 = 0.5V to 5V @ 20A, PMBus Controlled, works w/ DC1613A | $200.00 |
| DC1709A | LTC3880/-1 & LTC3887/-1 Demo Board I Programming Clamshell Socketed Demo Board | $125.00 |
| DC1740A-A | LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT0: 0.5V to 4.1V @ 80A, PMBus Controlled, works w/ DC1613 | $250.00 |
| 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 | $250.00 |
| DC1753A-A | LTC3880EUJ Demo Board (RSENSE) | Dual Phase Single Output, PMBus Buck, 6.5V ≤ VIN ≤ 24V, Vout = 0.5V to 3.3V @ 40A | $200.00 |
| DC1753B-A | LTC3880EUJ Demo Board (RSENSE) I Dual Phase Single Output PMBus Buck, 6.5V ≤ Vin ≤ 24V, Vout = 0.5V to 3.3V @ 40A | 联系凌力尔特 |
| 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 | 联系凌力尔特 |
| DC1962C | Power System Management Demo Board (PowerStick): 14-Supply Management with LTC2977, LTC2974 & LTC3880 [Requires DC1613] | $95.00 |
| DC1962C-KIT | Starter Kit for Power System Management [Includes DC1962C, DC1613A] | $125.00 |
| DC2052A | LTC3880EUJ/LTC3883EUH, 3-Phase Demo Board, Vin Range: 6.5V to 14V, Vout Range: 0.5V to 1.8V @ 60A, PMBus Controlled, works w/ DC1613 Dongle | $250.00 |
| DC2088A | LTC3880EUJ Demo Board | 7V ≤ VIN ≤ 14V; VOUT Range: 0.8V to 1.8V @ Up to 50A | $250.00 |
| DC2089A-A | LTC3880EUJ/LTC3870EUFD RSENSE Demo Board | 7V ≤ VIN ≤ 14V; VOUT = 0.8V to 1.8V @ 80A | 联系凌力尔特 |
| DC2089A-B | LTC3880EUJ/LTC3870EUFD DCR SENSE Demo Board | 7V ≤ VIN ≤ 14V; VOUT = 0.8V to 1.8V @ 80A | $275.00 |
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1613A | USB-to-PMBus Controller for Use with LTpowerPlay | $50.00 |
| DC2026C | Linduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform | $75.00 |
| DC2294A | DC2294A - PSM Linduino One Shield [requires DC2026, CA2978] | $50.00 |
- LTC3880 Package Drawing LTC3880
- Product Errata - LTC3880
- AN135 - Implementing Robust PMBus System Software for the LTC3880
- AN137 - Accurate Temperature Sensing with an External P-N Junction
- AN145 - Overview of the EEPROM in LTC PSM Devices
- AN152 - Power System Management Addressing
- AN153 - 用于电源系统管理的 Linduino
- AN155 - Fault Log Decoding with Linduino PSM
- R526 - Reliability Data
- Digital Power System Management
- PMBus DC/DC Converters with Power System Management
- PMBus Power System Managers
- Power and Thermal Monitoring
- Power System Management
- Dual Output DC/DC Controller Combines Digital Power System Management with Analog Control Loop for ±0.5% VOUT Accuracy
- Design Checklist for LTC388X Family of PSM Buck Converters
- LTC3880 to LTC3887 - Migration Guide
- 双输出 DC/DC 控制器可实现 ±0.5% 的 Vout 准确度
- 数字电源是正确选择吗?
- 数字电源系统管理降低了数据中心的功耗
- 系统设计师的数字电源
- 无人操作军用系统需要性能较高的电子系统
- 通过 I2C/PMBus 接口和内置 EEPROM 进行数字电源系统管理的双输出同步降压型 DC/DC 控制器
- LTC3880 Footprints and Symbols
- Digital Power Done Right
- LTC3880 Demo Circuit - High Efficiency Dual 500kHz 3.3V/1.8V Step-Down Converter (6-24V to 3.3V @ 15A & 1.8V @ 15A)
- LTC3880 & LTC3870 Project - PolyPhase Digital PSM Step-Down with Rsense Sensing Plus Two Slave Controllers (7-14V to 1V @ 80A)
- LTC3880 & LTC3870 Project - PolyPhase Digital PSM Step-Down with Ultra-Low DCR Sensing Plus Two Slave Controllers (7-14V to 1V @ 80A)
- LTC3880 Project - Dual, Step-Down DC/DC Controller with Digital Power System Management & Inductor DCR Current Sensing (6.5-24V to 1.5V @ 20A & 1.8V @ 20A)
- LTC3880 Project - Dual, Step-Down DC/DC Controller with Digital Power System Management & Rsense Current Sensing (6.5-24V to 1.5V @ 20A & 1.8V @ 20A)
- LTC3880 Project - PolyPhase Step-Down DC/DC Controllers with Digital Power System Management & Inductor DCR Current Sensing (7-14V to 1.2V @ 100A)
- LTC3880 Project - PolyPhase Step-Down DC/DC Controllers with Digital Power System Management & Rsense Current Sensing (6.5-24V to 1.8V @ 40A)
- LTC3880 - DC1590B Linduino .INO File
- LTC3880 - Linduino CPP File
- LTC3880 - Linduino Header File
