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TPS51275，TPS51275B和TPS51275C是针对笔记本系统电源解决方案的经济型，双路同步降压控制器。它提供5V和3.3V LDO并且TPS51275，TPS51275B和TPS51275C支持高效，快速瞬群。只需要使用极少的外部组件.260kHz VCLK输出可被用于驱动一个外部电荷泵，为负载开关生成栅极驱动电压而不会降低主转换器的效率。态响应并通提供一个组合电源正常信号。自适应接通时间，D-CAP™控制提供便捷且有效的运行。此器件运行电源输入电压范围介于5V至24V之间并且支持5.0V和3.3V的输出电压.TPS51275，TPS51275B和TPS51275C采用20引脚，3mm x 3mm，QFN封装，额定运行温度-40°C至85°C。
| Vin (Min) (V) |
| Vin (Max) (V) |
| Vout (Min) (V) |
| Vout (Max) (V) |
| Iout (Max) (A) |
| Regulated Outputs (#) |
| Number of Phases |
| Switching Frequency (Min) (kHz) |
| Switching Frequency (Max) (kHz) |
| Iq (Typ) (mA) |
| Features |
| Duty Cycle (Max) (%) |
| Operating Temperature Range (C) |
| Rating |
| Package Group |
| Control Mode |
| TPS51275B | TPS51225B | TPS51225C | TPS51275 | TPS51275B-1 | TPS51275C | TPS51285A | TPS51285B |
|---|---|---|---|---|---|---|---|
| 5 | 5.5 | 5.5 | 5 | 5 | 5 | 5 | 5 |
| 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| 4.5 | 4.5 | 4.5 | 4.5 | 4.85 | 4.5 | 4.5 | 4.5 |
| 5.5 | 5.5 | 5.5 | 5.5 | 5.1 | 5.5 | 5.5 | 5.5 |
| 20 | 10 | 10 | 20 | 20 | 20 | 20 | 20 |
| 4 | 2 | 2 | 4 | 2 | 4 | 2 | 2 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 300 | 300 | 300 | 300 | 300 | 300 | 400 | 400 |
| 355 | 355 | 355 | 355 | 355 | 355 | 475 | 475 |
| 0.8 | 0.9 | 0.9 | 0.8 | 0.8 | 0.8 | 0.084 | 0.084 |
| Enable Light Load Efficiency Power Good Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification | Enable Power Good Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification |
| 95 | 90 | 90 | 100 | 95 | 100 | 100 | 100 |
| -40 to 125 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 125 | -40 to 85 | -40 to 85 |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| WQFN | WQFN | WQFN | WQFN | WQFN | WQFN | WQFN | WQFN |
| D-CAP | D-CAP | D-CAP | D-CAP | D-CAP | |||
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