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数据： 4.5V to 18V Input, 2-A Synchronous Step-Down SWIFT(TM) Converter 数据表
TPS54225是一款自适应导通时间D-CAP2™模式同步降压转换器。 TPS54225使系统设计人员能够以经济高效，低元件数，低待机电流的解决方案完成各种终端设备的电源总线稳压器套件。 TPS54225的主控制回路采用D-CAP2™模式控制，无需外部补偿元件即可提供快速瞬态响应。
TPS54225还具有专有电路，可使器件适应低电平等效串联电阻（ESR）输出电容，如POSCAP或SP-CAP，以及超低ESR陶瓷电容。该器件采用4.5 V至18 V V CC 输入，以及2 V至18 V VIN输入电源电压工作。输出电压可在0.76 V至5.5 V之间编程。该器件还具有可调节的慢启动时间和电源良好功能。 TPS54225采用14引脚HTSSOP封装，工作温度范围为-40°C至85°C。
D-CAP2，PowerPAD是德州仪器公司的商标。 Blu-ray Disc是Blu-ray Disc Association的商标。
| 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 |
| TPS54225 | TPS54226 | TPS54325 | TPS54326 | TPS54425 | TPS54426 | TPS54429 | TPS54429E | TPS54525 | TPS54526 | TPS54625 | TPS54626 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 7 | 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 |
| 2 | 2 | 3 | 3 | 4 | 4 | 4.5 | 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 |
| 0.8 | 0.8 | 0.85 | 0.85 | 0.85 | 0.85 | 0.85 | 0.85 | 0.9 | 0.9 | 0.95 | 0.95 |
| 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 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 |
| D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 |
| 90 | 90 | 90 | 90 | 90 | 90 | 98 | 98 | 95 | 95 | 95 | 95 |
| -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -20 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 | HTSSOP VQFN | HTSSOP | HTSSOP VQFN | HTSSOP | HTSSOP QFN | HTSSOP | HTSSOP QFN | HTSSOP | HTSSOP QFN | HTSSOP | HTSSOP |
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