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TPS62175 /7是一款高效同步降压DC-DC转换器,此转换器基于分布式控制系统(DCS) - 控制的降压转换器拓扑技术。
借助于4.75V至28V的宽工作输入电压,此器件非常适合于由多节锂离子电池以及12V和更高阻抗电源轨供电的系统,从而提供高达500毫秒的输出电流。
TPS62175 /7在轻负载时自动进入节能模式,以在整个负载范围内保持高效率。此外,它特有一个为具有高级节能模式的应用(像超低功耗微控制器)供电的睡眠模式。电源正常输出可被用于电源排序和/或者加电复位。
此器件在正常模式特有一个典型值为22uA的静态电流,在睡眠模式中此电流值为4.8uA。在休眠模式下,极低负载电流下的效率可提高20%。在关断模式中,关断电流少于2uA并且输出被有源放电。
提供可调和固定输出电压版本的TPS62175 /7采用一个小型2mm x 3mm 10引脚WSON封装。< /p>
| 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 |
| TPS62177 | TPS62171 | TPS62172 | TPS62173 | TPS62175 |
|---|---|---|---|---|
| 4.7 | 3 | 3 | 3 | 4.7 |
| 28 | 17 | 17 | 17 | 28 |
| 3.3 | 1.8 | 3.3 | 5 | 1 |
| 3.3 | 1.8 | 3.3 | 5 | 6 |
| 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| 1 | 1 | 1 | 1 | 1 |
| 1000 | 2250 | 2250 | 2250 | 1000 |
| 1000 | 2250 | 2250 | 2250 | 1000 |
| 0.0048 | 0.017 | 0.017 | 0.017 | 0.0048 |
| Enable Light Load Efficiency Output Discharge Power Good Synchronous Rectification | Enable Light Load Efficiency Output Discharge Power Good Synchronous Rectification Tracking Voltage Margining | Enable Light Load Efficiency Output Discharge Power Good Synchronous Rectification Tracking Voltage Margining | Enable Light Load Efficiency Output Discharge Power Good Synchronous Rectification Tracking Voltage Margining | Enable Light Load Efficiency Output Discharge Power Good Synchronous Rectification |
| Constant on-time (COT) DCS-Control | Constant on-time (COT) DCS-Control | Constant on-time (COT) DCS-Control | Constant on-time (COT) DCS-Control | Constant on-time (COT) DCS-Control |
| 100 | 100 | 100 | 100 | 100 |
| -40 to 85 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 85 |
| Catalog | Catalog | Catalog | Catalog | Catalog |
| WSON | WSON | WSON | WSON | WSON |