LTC3407-4 双路、同步、800mA、2.25MHz 降压型 DC/DC 稳压器
LTC®3407-4 是一款双路、恒定频率、同步降压型 DC/DC 转换器。该器件面向低功率应用，工作输入电压范围为 2.5V至 5.5V，并具有一个 2.25MHz 的恒定开关频率，因而允许采用纤巧、低成本的电容器以及高度 ≤1mm 的电感器。每个输出电压可在 0.6V 至 5V 的范围内进行调节。内部同步 0.35Ω、1.2A 电源开关可在无需使用外部肖特基二极管的情况下提供高效率。
LTC3407-4 备有一种用户可选模式输入，使得用户能够在噪声纹波与低功率效率之间进行权衡。突发模式 (Burst Mode®) 操作可在轻负载条件下提供高效率，而脉冲跳跃模式则能够在轻负载条件下实现低噪声纹波。
为了进一步延长电池的使用寿命，P 沟道 MOSFET 在压降时 (100% 占空比) 连续导通，两个通道吸收的总静态电流仅为 40μA。在停机模式中，该器件的吸收电流 < 1μA。
LTC3407-4 与 LTC3407-2 完全相同，但除了减少的上电复位延时。
产品特点 Features
参数 |
应用
典型应用图 |
LTC3407-4 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) * |
| LTC3407AEDD#PBF | DFN | 10 | E | $3.71 | $2.60 |
| LTC3407AEDD#TRPBF | DFN | 10 | E | $2.66 | |
| LTC3407AEDD-2 | DFN | 10 | E | $4.21 | $2.95 |
| LTC3407AEDD-2#PBF | DFN | 10 | E | $4.21 | $2.95 |
| LTC3407AEDD-2#TR | DFN | 10 | E | $3.01 | |
| LTC3407AEDD-2#TRPBF | DFN | 10 | E | $3.01 | |
| LTC3407AEMSE#PBF | MSOP | 10 | E | $3.71 | $2.60 |
| LTC3407AEMSE#TRPBF | MSOP | 10 | E | $2.66 | |
| LTC3407AEMSE-2 | MSOP | 10 | E | $4.21 | $2.95 |
| LTC3407AEMSE-2#PBF | MSOP | 10 | E | $4.21 | $2.95 |
| LTC3407AEMSE-2#TR | MSOP | 10 | E | $3.01 | |
| LTC3407AEMSE-2#TRPBF | MSOP | 10 | E | $3.01 | |
| LTC3407AIDD | DFN | 10 | I | $4.27 | $2.99 |
| LTC3407AIDD#PBF | DFN | 10 | I | $4.27 | $2.99 |
| LTC3407AIDD#TR | DFN | 10 | I | $3.05 | |
| LTC3407AIDD#TRPBF | DFN | 10 | I | $3.05 | |
| LTC3407AIDD-2 | DFN | 10 | I | $4.84 | $3.39 |
| LTC3407AIDD-2#PBF | DFN | 10 | I | $4.84 | $3.39 |
| LTC3407AIDD-2#TR | DFN | 10 | I | $3.45 | |
| LTC3407AIDD-2#TRPBF | DFN | 10 | I | $3.45 | |
| LTC3407AIMSE | MSOP | 10 | I | $4.27 | $2.99 |
| LTC3407AIMSE#PBF | MSOP | 10 | I | $4.27 | $2.99 |
| LTC3407AIMSE#TR | MSOP | 10 | I | $3.05 | |
| LTC3407AIMSE#TRPBF | MSOP | 10 | I | $3.05 | |
| LTC3407AIMSE-2 | MSOP | 10 | I | $4.84 | $3.39 |
| LTC3407AIMSE-2#PBF | MSOP | 10 | I | $4.84 | $3.39 |
| LTC3407AIMSE-2#TR | MSOP | 10 | I | $3.45 | |
| LTC3407AIMSE-2#TRPBF | MSOP | 10 | I | $3.45 | |
| LTC3407EDD | DFN | 10 | E | $3.71 | $2.60 |
| LTC3407EDD#PBF | DFN | 10 | E | $3.71 | $2.60 |
| LTC3407EDD#TR | DFN | 10 | E | $2.66 | |
| LTC3407EDD#TRPBF | DFN | 10 | E | $2.66 | |
| LTC3407EDD-2 | DFN | 10 | E | $4.21 | $2.95 |
| LTC3407EDD-2#PBF | DFN | 10 | E | $4.21 | $2.95 |
| LTC3407EDD-2#TR | DFN | 10 | E | $3.01 | |
| LTC3407EDD-2#TRPBF | DFN | 10 | E | $3.01 | |
| LTC3407EDD-3 | DFN | 10 | E | $4.21 | $2.95 |
| LTC3407EDD-3#PBF | DFN | 10 | E | $4.21 | $2.95 |
| LTC3407EDD-3#TR | DFN | 10 | E | $3.01 | |
| LTC3407EDD-3#TRPBF | DFN | 10 | E | $3.01 | |
| LTC3407EDD-4 | DFN | 10 | E | $4.21 | $2.95 |
| LTC3407EDD-4#PBF | DFN | 10 | E | $4.21 | $2.95 |
| LTC3407EDD-4#TR | DFN | 10 | E | $3.01 | |
| LTC3407EDD-4#TRPBF | DFN | 10 | E | $3.01 | |
| LTC3407EMSE | MSOP | 10 | E | $3.71 | $2.60 |
| LTC3407EMSE#PBF | MSOP | 10 | E | $3.71 | $2.60 |
| LTC3407EMSE#TR | MSOP | 10 | E | $2.66 | |
| LTC3407EMSE#TRPBF | MSOP | 10 | E | $2.66 | |
| LTC3407EMSE-2 | MSOP | 10 | E | $4.21 | $2.95 |
| LTC3407EMSE-2#PBF | MSOP | 10 | E | $4.21 | $2.95 |
| LTC3407EMSE-2#TR | MSOP | 10 | E | $3.01 | |
| LTC3407EMSE-2#TRPBF | MSOP | 10 | E | $3.01 | |
| LTC3407EMSE-4 | MSOP | 10 | E | $4.21 | $2.95 |
| LTC3407EMSE-4#PBF | MSOP | 10 | E | $4.21 | $2.95 |
| LTC3407EMSE-4#TR | MSOP | 10 | E | $3.01 | |
| LTC3407EMSE-4#TRPBF | MSOP | 10 | E | $3.01 | |
| LTC3407IDD-2#PBF | DFN | 10 | I | $4.84 | $3.39 |
| LTC3407IDD-2#TRPBF | DFN | 10 | I | $3.45 | |
| LTC3407IMSE-2#PBF | MSOP | 10 | I | $4.84 | $3.39 |
| LTC3407IMSE-2#TRPBF | MSOP | 10 | I | $3.45 |
LTC3407-4 数据手册及相关资料下载
- 数据手册(英文) : LTC3407-4 - Dual Synchronous, 800mA, 2.25MHz Step-Down DC/DC Regulator.PDF
- 可靠性数据 : R415 Reliability Data .PDF
