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数据: TPS54325 4.5-V to 18-V, 3-A Output Synchronous Step Down Switcher with Integrated FET 数据表
TPS54325器件是一款自适应导通时间D-CAP2™模式同步降压转换器。 TPS54325器件使系统设计人员能够以低成本,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。
TPS54325的主控制回路使用D-CAP2 ™模式控制,无需外部元件即可提供非常快速的瞬态响应。 TPS54325还具有专有电路,使器件能够适应低等效串联电阻(ESR)输出电容(如POSCAP或SP-CAP)和超低ESR陶瓷电容。该器件采用4.5 V至18 V VCC输入,以及2.0 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。 TPS54325采用14引脚HTSSOP封装,工作温度范围为-40°C至85°C。
| 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 |
| TPS54325 | TPS54225 | TPS54226 | 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 |
| 3 | 2 | 2 | 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 |
| 0.85 | 0.8 | 0.8 | 0.85 | 0.85 | 0.85 | 0.85 | 0.85 | 0.9 | 0.9 | 0.95 | 0.95 |
| Enable 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 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 | HTSSOP VQFN | HTSSOP VQFN | HTSSOP | HTSSOP QFN | HTSSOP | HTSSOP QFN | HTSSOP | HTSSOP QFN | HTSSOP | HTSSOP |