LTC3633A 双通道、3A、20V、单片式、同步降压型稳压器
LTC®3633A 是一款高效率、双通道、单片式、同步降压型稳压器，采用一种受控导通时间、电流模式架构，并具有可锁相的开关频率。两个通道能以 180° 异相运行，这放宽了对输入和输出电容的要求。该器件的工作电源电压范围为 3.6V 至 20V，从而使其适合于锂离子电池组以及采用一个 12V 或 5V 电源的负载点电源应用。
工作频率可以利用一个外部电阻器在 500kHz 至 4MHz的范围内进行设置，并可同步至一个外部时钟信号。高频能力允许使用小的表面贴装型电感器和电容器。这种独特的恒定频率 / 受控导通时间架构非常适合于那些在高频条件下运作、同时要求快速瞬态响应的高降压比应用。一个内部锁相环负责维持内部单触发定时器的导通时间，以与内部时钟或一个外部时钟的频率相匹配。
LTC3633A 可以选择执行强制连续模式或高效率的突发模式操作。LTC3633A 和 LTC3633A-1 的区别在于其输出电压检测范围 (参阅“工作原理”部分中的表 1 以了解整个 LTC3633A 产品系列)。
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LTC3633A 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) * |
| LTC3633AEFE#PBF | TSSOP | 28 | E | $6.29 | $4.40 |
| LTC3633AEFE#TRPBF | TSSOP | 28 | E | $4.46 | |
| LTC3633AEFE-1#PBF | TSSOP | 28 | E | $6.29 | $4.40 |
| LTC3633AEFE-1#TRPBF | TSSOP | 28 | E | $4.46 | |
| LTC3633AEFE-2#PBF | TSSOP | 28 | E | $6.29 | $4.40 |
| LTC3633AEFE-2#TRPBF | TSSOP | 28 | E | $4.46 | |
| LTC3633AEFE-3#PBF | TSSOP | 28 | E | $6.29 | $4.40 |
| LTC3633AEFE-3#TRPBF | TSSOP | 28 | E | $4.46 | |
| LTC3633AEUFD#PBF | QFN | 28 | E | $6.07 | $4.25 |
| LTC3633AEUFD#TRPBF | QFN | 28 | E | $4.31 | |
| LTC3633AEUFD-1#PBF | QFN | 28 | E | $6.07 | $4.25 |
| LTC3633AEUFD-1#TRPBF | QFN | 28 | E | $4.31 | |
| LTC3633AEUFD-2#PBF | QFN | 28 | E | $6.07 | $4.25 |
| LTC3633AEUFD-2#TRPBF | QFN | 28 | E | $4.31 | |
| LTC3633AEUFD-3#PBF | QFN | 28 | E | $6.07 | $4.25 |
| LTC3633AEUFD-3#TRPBF | QFN | 28 | E | $4.31 | |
| LTC3633AIFE#PBF | TSSOP | 28 | I | $6.99 | $4.89 |
| LTC3633AIFE#TRPBF | TSSOP | 28 | I | $4.95 | |
| LTC3633AIFE-1#PBF | TSSOP | 28 | I | $6.99 | $4.89 |
| LTC3633AIFE-1#TRPBF | TSSOP | 28 | I | $4.95 | |
| LTC3633AIFE-2#PBF | TSSOP | 28 | I | $6.99 | $4.89 |
| LTC3633AIFE-2#TRPBF | TSSOP | 28 | I | $4.95 | |
| LTC3633AIFE-3#PBF | TSSOP | 28 | I | $6.99 | $4.89 |
| LTC3633AIFE-3#TRPBF | TSSOP | 28 | I | $4.95 | |
| LTC3633AIUFD#PBF | QFN | 28 | I | $6.74 | $4.72 |
| LTC3633AIUFD#TRPBF | QFN | 28 | I | $4.78 | |
| LTC3633AIUFD-1#PBF | QFN | 28 | I | $6.74 | $4.72 |
| LTC3633AIUFD-1#TRPBF | QFN | 28 | I | $4.78 | |
| LTC3633AIUFD-2#PBF | QFN | 28 | I | $6.74 | $4.72 |
| LTC3633AIUFD-2#TRPBF | QFN | 28 | I | $4.78 | |
| LTC3633AIUFD-3#PBF | QFN | 28 | I | $6.74 | $4.72 |
| LTC3633AIUFD-3#TRPBF | QFN | 28 | I | $4.78 | |
| LTC3633EFE#PBF | TSSOP | 28 | E | $6.29 | $4.40 |
| LTC3633EFE#TRPBF | TSSOP | 28 | E | $4.46 | |
| LTC3633EUFD#PBF | QFN | 28 | E | $6.07 | $4.25 |
| LTC3633EUFD#TRPBF | QFN | 28 | E | $4.31 | |
| LTC3633IFE#PBF | TSSOP | 28 | I | $6.99 | $4.89 |
| LTC3633IFE#TRPBF | TSSOP | 28 | I | $4.95 | |
| LTC3633IUFD#PBF | QFN | 28 | I | $6.74 | $4.72 |
| LTC3633IUFD#TRPBF | QFN | 28 | I | $4.78 |
LTC3633A 数据手册及相关资料下载
- 数据手册(英文) : LTC3633A/LTC3633A-1 - Dual Channel 3A, 20V Monolithic Synchronous Step-Down Regulator .PDF
- 可靠性数据 : R539 Reliability Data .PDF
