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数据： TPS53311 3-A Step-Down Regulator With Integrated Switcher 数据表
TPS53311提供完全集成的3 V至5 VV IN 集成同步FET转换器解决方案，总共16个组件， PCB面积为200 mm 2 。由于低R DS（on）和TI专有SmoothPWM™跳过操作模式，它可实现95.5％的峰值效率，并且在负载轻至100 mA时效率超过90％。它只需要两个22μF陶瓷输出电容，用于功率密集的3A解决方案。
TPS53311具有1.1 MHz开关频率，SKIP模式操作支持，预偏置启动，内部软件启动，输出软放电，内部VBST开关，电源良好，EN /输入UVLO，过流，过压，欠压和过温保护以及所有陶瓷输出电容支持。它支持2.9 V至3.5 V的电源电压和2.9 V至6 V的转换电压，输出电压可在0.6 V至0.84 V×V IN 范围内调节。
TPS53311采用3 mm×3 mm 16引脚VQFN封装（符合绿色RoH标准且无铅），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 |
| TPS53311 | TPS51312 | TPS51313 | TPS53310 | TPS53313 | TPS53314 | TPS53315 | TPS53321 |
|---|---|---|---|---|---|---|---|
| 2.9 | 3.1 | 3.1 | 2.9 | 4.5 | 3 | 3 | 2.9 |
| 6 | 5.5 | 5.5 | 6 | 16 | 15 | 15 | 6 |
| 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| 4.2 | 3.3 | 3.3 | 4.2 | 10 | 5.5 | 5.5 | 4.2 |
| 3 | 3 | 3 | 3 | 6 | 6 | 12 | 5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1100 | 900 | 1000 | 1100 | 250 | 250 | 250 | 1100 |
| 1100 | 900 | 1000 | 1100 | 1500 | 1000 | 1000 | 1100 |
| 0.32 | 0.8 | 0.8 | 0.32 | 0.32 | 0.32 | 0.32 | 0.32 |
| Enable Light Load Efficiency Output Discharge Phase Interleaving Power Good Pre-Bias Start-Up Synchronous Rectification | Enable Light Load Efficiency Output Discharge Power Good Pre-Bias Start-Up Synchronous Rectification | Enable Light Load Efficiency Output Discharge Power Good Pre-Bias Start-Up Synchronous Rectification | Enable Light Load Efficiency Output Discharge Phase Interleaving Power Good Pre-Bias Start-Up Synchronous Rectification | Enable Light Load Efficiency Output Discharge Power Good Pre-Bias Start-Up Synchronous Rectification | Adjustable Current Limit Enable Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification | Adjustable Current Limit Enable Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Output Discharge Power Good Pre-Bias Start-Up Synchronous Rectification |
| Voltage Mode | D-CAP2 | D-CAP2 | Voltage Mode | Voltage Mode | D-CAP | D-CAP | Voltage Mode |
| 99 | 90 | 90 | 99 | 99 | 90 | 90 | 99 |
| -40 to 85 | -40 to 85 | -10 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| VQFN | VSON | VSON | VQFN | VQFN | VQFN | VQFN | VQFN |
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