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TPS54202H是一款输入电压范围为4.5V至28V的2A同步降压转换器。该器件包含两个集成式开关场效应应晶体管( FET)并且具备内部回路补偿和5ms内部软启动功能,可降低组件数。
通过集成MOSFET并采用SOT-23封装,TPS54202H获得了高功率密度,并且在印刷电路板(PCB) )上的占用空间非常小。
高级Eco-mode实现可最大限度地提高轻负载效率并降低功率损耗。
高侧MOSFET上的逐周期电流限制功能可在过载条件下保护转换器并通过防止电流失控的低侧MOSFET续流电流限制功能实现功能增强。当过流持续时间超出预设时间时,将触发断续模式保护功能。
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所有商标均为其各自所有者的财产。
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 |
TPS54202 | TPS54302 | TPS54308 | TPS54335A | TPS54336A |
---|---|---|---|---|
4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
28 | 28 | 28 | 28 | 28 |
0.6 | 0.6 | 1 | 0.8 | 0.8 |
26 | 26 | 26 | 25 | 25 |
2 | 3 | 3 | 3 | 3 |
1 | 1 | 1 | 1 | 1 |
390 | 290 | 350 | 50 | 340 |
590 | 510 | 350 | 1500 | 340 |
0.04 | 0.04 | 0.3 | 0.6 | 0.6 |
Enable Light Load Efficiency Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable | Enable Light Load Efficiency Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable | Enable Forced Pulse Width Modulation (FPWM) Mode Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable | Enable Light Load Efficiency Synchronous Rectification UVLO Adjustable | Enable Light Load Efficiency Synchronous Rectification UVLO Adjustable |
Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
100 | 100 | 100 | 90 | 90 |
-40 to 125 | -40 to 125 | -40 to 125 | -40 to 150 | -40 to 150 |
Catalog | Catalog | Catalog | Catalog | Catalog |
SOT-23-THIN | SOT-23-THIN | SOT-23-THIN | SO PowerPAD VSON | SO PowerPAD VSON |