LTC3883 / LTC3883-1- 具数字电源系统管理功能的单相降压型 DC/DC 控制器
LTC®3883 / LTC3883-1 是具多相操作能力的 DC/DC 同步降压型开关稳压控制器，具有一个符合 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，此器件得到了具有图形用户界面 (GUI) 的 LTPowerPlayTM 软件开发工具的支持。
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片内 EEPROM 中。
LTC3883 / LTC3883-1 可针对突发模式 (Burst Mode®) 操作、不连续 (脉冲跳跃) 模式或连续电感器电流模式进行配置。LTC3883 包括一个内部 5V 线性稳压器，而 LTC3883-1 则采用了一个外部 5V 电源以尽可能地降低功率损失。
LTC3883 / LTC3883-1 采用 32 引脚 5mm x 5mm QFN 封装。
特点
典型应用  | 应用
封装信息  |
| 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) * |
|---|---|---|---|---|
| LTC3883EUH-1#PBF | 5x5 QFN-32 | E | $6.89 | $4.82 |
| LTC3883EUH-1#TRPBF | 5x5 QFN-32 | E | $4.88 | |
| LTC3883EUH#PBF | 5x5 QFN-32 | E | $6.89 | $4.82 |
| LTC3883EUH#TRPBF | 5x5 QFN-32 | E | $4.88 | |
| LTC3883IUH-1#PBF | 5x5 QFN-32 | I | $7.56 | $5.29 |
| LTC3883IUH-1#TRPBF | 5x5 QFN-32 | I | $5.35 | |
| LTC3883IUH#PBF | 5x5 QFN-32 | I | $7.56 | $5.29 |
| LTC3883IUH#TRPBF | 5x5 QFN-32 | I | $5.35 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1778B-A | LTC3883EUH Demo Board | 6.5V < VIN < 24V; 0.5V < VOUT < 5V @ 20A, with RSENSE Current Sense | 联系凌力尔特 |
| 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 |
| 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 |
- LTC3883 Package Drawing LTC3883
- Product Errata - LTC3883/LTC3883-1
- AN137 - Accurate Temperature Sensing with an External P-N Junction
- AN145 - Overview of the EEPROM in LTC PSM Devices
- DN517 - 具有电源系统管理功能的高性能单相 DC/DC 控制器
- R526 - Reliability Data
- Digital Power System Management
- PMBus DC/DC Converters with Power System Management
- PMBus Power System Managers
- Power and Thermal Monitoring
- DC/DC Controller Combines Digital Power System Management with Analog Control Loop for ±0.5% VOUT Accuracy
- High Performance Single Phase DC/DC Controller with Digital Power Management
- Design Checklist for LTC388X Family of PSM Buck Converters
- DC/DC 控制器兼有数字电源系统管理功能和模拟控制环路以实现 ±0.5% 的 Vout 准确度
- 具数字电源管理功能的高性能单相 DC/DC 控制器
- 具备 I2C / PMBus 数字电源系统管理和内置 EEPROM 的同步降压型 DC/DC 控制器
- LTC3883 Footprints and Symbols
- LTC3883 Demo Circuit - High Efficiency 425kHz 1.8V Step-Down Converter with Inductor DCR Current Sensing (6-24V to 1.8V @ 20A)
- LTC3883 Project - Single Phase Step-Down DC/DC Controller with Digital Power System Management & Inductor DCR Current Sensing (6.5-24V to 1.8V @ 20A)
- LTC3883 Project - Single Phase Step-Down DC/DC Controller with Digital Power System Management & Rsense Current Sensing (6.5-24V to 1.8V @ 20A)
- LTC3883 - DC1778A Linduino .INO File
- LTC3883 - Linduino CPP File
- LTC3883 - Linduino Header File
