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TPS54429E是一款自适应接通时间D-CAP2™模式同步降压转换器.TPS54429E可帮助系统设计人员通过一个低成本，低组件数的低待机电流解决方案来完成各种终端设备的电源总线调节器集.TPS54429E的主控制环路采用D-CAP2™模式控制，无需外部补偿组件便可实现极快的瞬态响应。适用接通时间控制可以更高负载状态下的PWM模式与轻负载下的Eco-mode™工作之间实现无缝转换.Eco-mode™使用TPS54429E能够在更轻负载状况下保持高效率。此外，TPS54429E的专有电流还可使该器件能够适应POSCAP与SP-CAP等低等效串联电阻（ESR）输出电容器以及超低ESR陶瓷电容器。该器件宽泛的工作输入电压介于7 V至18 V之间。可在0.76 V至5.5V的范围内对输出电压进行编程。此外，该器件还支持可调软启动时间与功率良好功能.TPS54429E采用14引脚HTS SOP封装与16引脚QFN封装，支持从-20°C到85°C的宽泛工作温度。
| Vin (Min) (V) |
| Vin (Max) (V) |
| Vout (Min) (V) |
| Vout (Max) (V) |
| Iout (Max) (A) |
| Regulated Outputs (#) |
| Switching Frequency (Min) (kHz) |
| Switching Frequency (Max) (kHz) |
| Iq (Typ) (mA) |
| Features |
| Control Mode |
| Duty Cycle (Max) (%) |
| Operating Temperature Range (C) |
| Rating |
| Package Group |
| TPS54429E | TPS54225 | TPS54226 | TPS54325 | TPS54326 | TPS54425 | TPS54426 | TPS54429 | TPS54525 | TPS54526 | TPS54625 | TPS54626 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 7 | 4.5 | 4.5 | 4.5 | 4.5 |
| 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| 0.76 | 0.76 | 0.76 | 0.76 | 0.76 | 0.76 | 0.76 | 0.76 | 0.76 | 0.76 | 0.76 | 0.76 |
| 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| 4.5 | 2 | 2 | 3 | 3 | 4 | 4 | 4.5 | 5.5 | 5.5 | 6.5 | 6.5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 650 | 650 | 650 | 650 |
| 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 650 | 650 | 650 | 650 |
| 0.85 | 0.8 | 0.8 | 0.85 | 0.85 | 0.85 | 0.85 | 0.85 | 0.9 | 0.9 | 0.95 | 0.95 |
| Enable Light Load Efficiency Power Good Synchronous Rectification | Enable 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 Power Good Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification | Enable Power Good Synchronous Rectification | Enable 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 |
| D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 |
| 98 | 90 | 90 | 90 | 90 | 90 | 90 | 98 | 95 | 95 | 95 | 95 |
| -20 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -20 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| HTSSOP QFN | HTSSOP | HTSSOP VQFN | HTSSOP | HTSSOP VQFN | HTSSOP | HTSSOP QFN | HTSSOP | HTSSOP | HTSSOP QFN | HTSSOP | HTSSOP |
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