LTC3862-2 - 多相电流模式升压型 DC/DC 控制器
LTC®3862-2 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。
工作频率可利用一个外部电阻器设定在 75kHz 至 500kHz 范围，并可采用内部 PLL 同步至外部时钟。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 2、3、4、6 或 12 相操作。
其他特点包括一个内部 10V 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。
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) * |
|---|---|---|---|---|
| LTC3862EFE-2#PBF | TSSOP-24 | E | $4.87 | $3.41 |
| LTC3862EFE-2#TRPBF | TSSOP-24 | E | $3.47 | |
| LTC3862EGN-2#PBF | SSOP-24 | E | $4.70 | $3.29 |
| LTC3862EGN-2#TRPBF | SSOP-24 | E | $3.35 | |
| LTC3862EUH-2#PBF | 5x5 QFN-24 | E | $4.70 | $3.29 |
| LTC3862EUH-2#TRPBF | 5x5 QFN-24 | E | $3.35 | |
| LTC3862HFE-2#PBF | TSSOP-24 | H | $5.89 | $4.12 |
| LTC3862HFE-2#TRPBF | TSSOP-24 | H | $4.18 | |
| LTC3862HGN-2#PBF | SSOP-24 | H | $5.71 | $4.00 |
| LTC3862HGN-2#TRPBF | SSOP-24 | H | $4.06 | |
| LTC3862HUH-2#PBF | 5x5 QFN-24 | H | $5.71 | $4.00 |
| LTC3862HUH-2#TRPBF | 5x5 QFN-24 | H | $4.06 | |
| LTC3862IFE-2#PBF | TSSOP-24 | I | $5.46 | $3.82 |
| LTC3862IFE-2#TRPBF | TSSOP-24 | I | $3.88 | |
| LTC3862IGN-2#PBF | SSOP-24 | I | $5.30 | $3.71 |
| LTC3862IGN-2#TRPBF | SSOP-24 | I | $3.77 | |
| LTC3862IUH-2#PBF | 5x5 QFN-24 | I | $5.30 | $3.71 |
| LTC3862IUH-2#TRPBF | 5x5 QFN-24 | I | $3.77 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1891A | LTC3862EFE-2 Demo Board | 2-Phase SEPIC, 6V ≤ VIN ≤ 60V; VOUT = 12V @ 6A | $125.00 |
| DC2006A-A | LTC3862EUH-2 Demo Board | Boost Controller, 6V ≤ VIN ≤ 36V; VOUT = 50V @ 10A | $125.00 |
| DC2006A-B | LTC3862EUH-2 Demo Board | Boost Controller, 6V ≤ VIN ≤ 36V; VOUT = 120V @ 2A | $125.00 |
- R526 - Reliability Data
- LTC3862-2 Footprints and Symbols
- LTC3862-2 Demo Circuit - Automotive High Output Voltage Boost Converter (5-28V to 75V @ 1A)
- LTC3862-2 Demo Circuit - High Power, High Voltage, 4-Phase Boost Converter (6-36V to 50V @ 10A)
- LTC3862-2 Demo Circuit - Low Noise PolyPhase SEPIC DC/DC Converter (6-28V to 12V @ 1A)
- LTC3862-2 Project - Multi-Phase Current Mode Step-Up DC/DC Controller (6-36V to 50V @ 10A)
