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数据: TPS6215x 采用 3mm × 3mm QFN 封装的 3V 至 17V、1A 降压转换器 数据表 (Rev. D)
TPS6215x系列属于易用型同步降压DC-DC转换器,针对高功率密度的应用进行了优化。该系列器件的开关频率典型值高达2.5MHz,允许使用小型电感器,通过利用DCS-Control拓扑技术提供快速瞬态响应并实现高输出电压精度。
该系列器件具有3V至17V宽运行输入电压范围,非常适用于由锂离子或其他电池以及12V中间电源轨供电的系统。其输出电压为0.9V至6V,支持高达1A的持续输出电流(在100%占空比模式下)。软启动引脚控制输出电压启动斜坡,从而允许器件作为独立电源或者在跟踪配置下运行。此外,还可以通过配置使能(EN)引脚和开漏电源正常状态(PG)引脚实现电源排序。
在节能模式下,器件在VIN作用下生成约17μA的静态电流。负载较小时可自动且无缝进入节能模式,同时该模式可保持整个负载范围内的高率。该器件在关断状态,期间的流耗低于2μA。
此器件提供可调节输出电压和固定输出电压两个版本,采用3mm×3mm 16引脚VQFN封装(RGT)。
| 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 |
| TPS62151 | TPS62131 | TPS62141 | TPS62161 | TPS62171 |
|---|---|---|---|---|
| 3 | 3 | 3 | 3 | 3 |
| 17 | 17 | 17 | 17 | 17 |
| 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
| 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
| 1 | 3 | 2 | 1 | 0.5 |
| 1 | 1 | 1 | 1 | 1 |
| 1250 | 1250 | 1250 | 2250 | 2250 |
| 2500 | 2500 | 2500 | 2250 | 2250 |
| 0.017 | 0.017 | 0.017 | 0.017 | 0.017 |
| Enable Light Load Efficiency Output Discharge Power Good Synchronous Rectification Tracking Voltage Margining | Enable Light Load Efficiency Power Good Pre-Bias Start-Up 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 Tracking Voltage Margining |
| 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 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Catalog | Catalog | Catalog | Catalog | Catalog |
| VQFN | VQFN | VQFN | WSON | WSON |