数据：
3.5 V to 42 V STEP DOWN SWIFT DC/DC CONVERTER WITH ECO-MODE 数据表 
TPS54240-Q1器件是一款42V，2.5A，降压型稳压器，集成了高端MOSFET。电流模式控制提供简单的外部补偿和灵活的元件选择。低纹波脉冲跳跃模式可将空载，稳压输出电源电流降至138μA。使能使能引脚时，当使能引脚为低电平时，关断电源电流降至1.3μA。
欠压锁定在内部设置为2.5 V，但可以通过使能引脚增加。输出电压启动斜坡由慢启动引脚控制，也可配置为排序/跟踪。漏极开路电源就绪信号表示输出在其标称电压的94％至107％范围内。
宽开关频率范围可以优化效率和外部元件尺寸。在过载情况下，频率折返和热关断可保护器件。
TPS54240-Q1采用10引脚耐热增强型MSOP PowerPAD封装。
| 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 |
| TPS54240-Q1 | TPS54260-Q1 | TPS57040-Q1 | TPS57060-Q1 | TPS57140-Q1 | TPS57160-Q1 |
|---|---|---|---|---|---|
| 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
| 42 | 60 | 42 | 60 | 42 | 60 |
| 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| 39 | 58 | 39 | 58 | 39 | 58 |
| 2.5 | 2.5 | 0.5 | 0.5 | 1.5 | 1.5 |
| 1 | 1 | 1 | 1 | 1 | 1 |
| 100 | 100 | 100 | 100 | 100 | 100 |
| 2500 | 2500 | 2500 | 2500 | 2500 | 2500 |
| 0.138 | 0.138 | 0.116 | 0.116 | 0.116 | 0.116 |
| Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable |
| Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
| 100 | 100 | 100 | 98 | 100 | 100 |
| -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Automotive | Automotive | Automotive | Automotive | Automotive | Automotive |
| MSOP-PowerPAD VSON | MSOP-PowerPAD VSON | MSOP-PowerPAD VSON | MSOP-PowerPAD VSON | MSOP-PowerPAD VSON | MSOP-PowerPAD VSON |
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