完善资料让更多小伙伴认识你,还能领取20积分哦,立即完善>
数据: TPS53321 5-A Step-Down Regulator With Integrated Switcher 数据表
TPS53321器件提供完全集成的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 。由于具有低导通电阻和TI专有的SmoothPWM™跳过工作模式,因此在负载轻至100 mA时,可实现96%的峰值效率和90%以上的效率。它只需要两个22μF陶瓷输出电容,用于功率密集的5A解决方案。
TPS53321具有1.1 MHz开关频率,跳过模式操作支持,预偏置启动,内部软启动,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。
TPS53321采用3 mm×3 mm 16引脚QFN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 |
| TPS53321 | TPS53310 | TPS53311 | TPS53314 | TPS53315 |
|---|---|---|---|---|
| 2.9 | 2.9 | 2.9 | 3 | 3 |
| 6 | 6 | 6 | 15 | 15 |
| 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| 4.2 | 4.2 | 4.2 | 5.5 | 5.5 |
| 5 | 3 | 3 | 6 | 12 |
| 1 | 1 | 1 | 1 | 1 |
| 1100 | 1100 | 1100 | 250 | 250 |
| 1100 | 1100 | 1100 | 1000 | 1000 |
| 0.32 | 0.32 | 0.32 | 0.32 | 0.32 |
| Enable Frequency Synchronization 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 Phase Interleaving 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 |
| Voltage Mode | Voltage Mode | Voltage Mode | D-CAP | D-CAP |
| 99 | 99 | 99 | 90 | 90 |
| -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Catalog | Catalog | Catalog | Catalog | Catalog |
| VQFN | VQFN | VQFN | VQFN | VQFN |