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TPS54427是一款自适应接通时间D-CAP2™模式同步降压转换器.TPS54427可帮助系统设计人员通过成本有效性,低TPS54427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。
TPS54427的专有电路还使该器件可采用诸如高分子有机半导体固体电容器(POSCAP)或高分子聚合物电容器(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。
该器件的工作输入电压介于4.5V至18V之间。可在
0.76V至7V之间设定输出电压。
此器件还特有一个可调软启动时间。
TPS54427采用8引脚DDA封装和10引脚DRC封装,被设计成在-40°C到85°C的温度范围内运行。
| 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 |
| TPS54427 | TPS54227 | TPS54228 | TPS54327 | TPS54328 | TPS54428 | TPS54627 | TPS54628 | TPS56428 | TPS56528 |
|---|---|---|---|---|---|---|---|---|---|
| 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| 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 | 0.6 | 0.76 |
| 7 | 7 | 7 | 7 | 7 | 7 | 5.5 | 5.5 | 5.5 | 5.5 |
| 4 | 2 | 2 | 3 | 3 | 4 | 6 | 6 | 4 | 5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 650 | 700 | 700 | 700 | 700 | 650 | 650 | 650 | 650 | 650 |
| 650 | 700 | 700 | 700 | 700 | 650 | 650 | 650 | 650 | 650 |
| 0.95 | 0.8 | 0.8 | 0.8 | 0.8 | 0.95 | 0.95 | 0.95 | 0.25 | 0.25 |
| Enable Synchronous Rectification | Enable Synchronous Rectification | Enable Light Load Efficiency Synchronous Rectification | Enable Synchronous Rectification | Enable Light Load Efficiency Synchronous Rectification | Enable Light Load Efficiency Synchronous Rectification | Enable Synchronous Rectification | Enable Light Load Efficiency Synchronous Rectification | Enable Light Load Efficiency Power Good Synchronous Rectification | Enable Light Load Efficiency Synchronous Rectification |
| Current Mode | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 | D-CAP2 |
| 95 | 90 | 90 | 90 | 90 | 95 | 85 | 85 | 85 | 85 |
| -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 125 | -40 to 125 | -40 to 85 | -40 to 125 |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| SO PowerPAD VSON | SO PowerPAD VSON | SO PowerPAD SOIC VSON | SO PowerPAD VSON | SO PowerPAD VSON | SO PowerPAD VSON | SO PowerPAD | SO PowerPAD | SO PowerPAD VQFN | SO PowerPAD |
型号:TPS54427DDAR 封装:SOIC8_150MIL_EP
品牌:TI 描述:降压型-40℃~+85℃@(TA)1降压可调0.76V~7V 4A 4.5V~18V 650kHz SOIC8_150MIL_EP DC-DC转换器ROHS
金额:¥3.12000
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