LTC3862 多相电流模式升压型 DC/DC 控制器
LTC®3862 是一款两相、恒定频率、电流模式升压和 SEPIC 型控制器，用于驱动 N 沟道功率 MOSFET。两相操作降低了系统滤波电容和电感要求。5V 栅极驱动电路专为大多数汽车和工业级功率 MOSFET 而优化。
可调的斜坡补偿增益使用户能够对电流环路增益进行微调，从而改善了噪声免疫力。
工作频率可利用一个外部电阻器设定在 75kHz 至 500kHz 的范围内，并可采用内部PLL 同步至一个外部时钟。采用 SYNC 输入、CLKOUT 输出和 PHASEMODE 控制引脚可实现多相操作，从而允许执行两相、3 相、4 相、6 相或 12 相操作。
其他特点包括一个内部 5V LDO (具有用于栅极驱动器的欠压闭锁保护功能)、一个具可编程迟滞的精准 RUN 引脚门限、软起动、可编程前沿消隐和最大占空比。
产品特点 Features
封装  |
应用
典型应用图
参数 |
LTC3862 订购信息和价格参考Package Variations and Pricing
| 器件型号 | 封装 | 引脚 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
| LTC3862EFE#PBF | TSSOP | 24 | E | $4.87 | $3.41 |
| LTC3862EFE#TRPBF | TSSOP | 24 | E | $3.47 | |
| LTC3862EFE-1#PBF | TSSOP | 24 | E | $4.87 | $3.41 |
| LTC3862EFE-1#TRPBF | TSSOP | 24 | E | $3.47 | |
| LTC3862EFE-2#PBF | TSSOP | 24 | E | $4.87 | $3.41 |
| LTC3862EFE-2#TRPBF | TSSOP | 24 | E | $3.47 | |
| LTC3862EGN#PBF | SSOP | 24 | E | $4.70 | $3.29 |
| LTC3862EGN#TRPBF | SSOP | 24 | E | $3.35 | |
| LTC3862EGN-1#PBF | SSOP | 24 | E | $4.70 | $3.29 |
| LTC3862EGN-1#TRPBF | SSOP | 24 | E | $3.35 | |
| LTC3862EGN-2#PBF | SSOP | 24 | E | $4.70 | $3.29 |
| LTC3862EGN-2#TRPBF | SSOP | 24 | E | $3.35 | |
| LTC3862EUH#PBF | QFN | 24 | E | $4.70 | $3.29 |
| LTC3862EUH#TRPBF | QFN | 24 | E | $3.35 | |
| LTC3862EUH-1#PBF | QFN | 24 | E | $4.70 | $3.29 |
| LTC3862EUH-1#TRPBF | QFN | 24 | E | $3.35 | |
| LTC3862EUH-2#PBF | QFN | 24 | E | $4.70 | $3.29 |
| LTC3862EUH-2#TRPBF | QFN | 24 | E | $3.35 | |
| LTC3862HFE#PBF | TSSOP | 24 | H | $5.89 | $4.12 |
| LTC3862HFE#TRPBF | TSSOP | 24 | H | $4.18 | |
| LTC3862HFE-1#PBF | TSSOP | 24 | H | $5.89 | $4.12 |
| LTC3862HFE-1#TRPBF | TSSOP | 24 | H | $4.18 | |
| LTC3862HFE-2#PBF | TSSOP | 24 | H | $5.89 | $4.12 |
| LTC3862HFE-2#TRPBF | TSSOP | 24 | H | $4.18 | |
| LTC3862HGN#PBF | SSOP | 24 | H | $5.71 | $4.00 |
| LTC3862HGN#TRPBF | SSOP | 24 | H | $4.06 | |
| LTC3862HGN-1#PBF | SSOP | 24 | H | $5.71 | $4.00 |
| LTC3862HGN-1#TRPBF | SSOP | 24 | H | $4.06 | |
| LTC3862HGN-2#PBF | SSOP | 24 | H | $5.71 | $4.00 |
| LTC3862HGN-2#TRPBF | SSOP | 24 | H | $4.06 | |
| LTC3862HUH#PBF | QFN | 24 | H | $5.71 | $4.00 |
| LTC3862HUH#TRPBF | QFN | 24 | H | $4.06 | |
| LTC3862HUH-1#PBF | QFN | 24 | H | $5.71 | $4.00 |
| LTC3862HUH-1#TRPBF | QFN | 24 | H | $4.06 | |
| LTC3862HUH-2#PBF | QFN | 24 | H | $5.71 | $4.00 |
| LTC3862HUH-2#TRPBF | QFN | 24 | H | $4.06 | |
| LTC3862IFE#PBF | TSSOP | 24 | I | $5.46 | $3.82 |
| LTC3862IFE#TRPBF | TSSOP | 24 | I | $3.88 | |
| LTC3862IFE-1#PBF | TSSOP | 24 | I | $5.46 | $3.82 |
| LTC3862IFE-1#TRPBF | TSSOP | 24 | I | $3.88 | |
| LTC3862IFE-2#PBF | TSSOP | 24 | I | $5.46 | $3.82 |
| LTC3862IFE-2#TRPBF | TSSOP | 24 | I | $3.88 | |
| LTC3862IGN#PBF | SSOP | 24 | I | $5.30 | $3.71 |
| LTC3862IGN#TRPBF | SSOP | 24 | I | $3.77 | |
| LTC3862IGN-1#PBF | SSOP | 24 | I | $5.30 | $3.71 |
| LTC3862IGN-1#TRPBF | SSOP | 24 | I | $3.77 | |
| LTC3862IGN-2#PBF | SSOP | 24 | I | $5.30 | $3.71 |
| LTC3862IGN-2#TRPBF | SSOP | 24 | I | $3.77 | |
| LTC3862IUH#PBF | QFN | 24 | I | $5.30 | $3.71 |
| LTC3862IUH#TRPBF | QFN | 24 | I | $3.77 | |
| LTC3862IUH-1#PBF | QFN | 24 | I | $5.30 | $3.71 |
| LTC3862IUH-1#TRPBF | QFN | 24 | I | $3.77 | |
| LTC3862IUH-2#PBF | QFN | 24 | I | $5.30 | $3.71 |
| LTC3862IUH-2#TRPBF | QFN | 24 | I | $3.77 |
LTC3862 数据手册及相关资料下载
- 数据手册(英文) : LTC3862 - Multi-Phase Current Mode Step-Up DC/DC Controller.PDF
- 设计要点 (中文) : DN453 - 四相升压型转换器提供 348W 功率而无需采用散热器.PDF
- 可靠性数据 : R526 Reliability Data .PDF
- LT Journal : Jan 2009 - 2-Phase, Non-Synchronous Boost Controller Simplifies Design of High Voltage, High Current Supplies.PDF
- 产品新闻发布 (中文) : LTC3862 - 多相升压型 DC/DC 控制器提供大功率.PDF
