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TPS53681是一款多相降压控制器，具有双通道，内置非易失性存储器（NVM）和PMBus™接口，兼容兼容采用TI NexFET™功率级。先进的控制功能，如具有下冲减少（USR）的D-CAP +™架构，可提供快速瞬态响应，低输出电容和高效率。该装置还提供了新颖的相位交错策略和动态相位切除，以在不同负载下提高效率。该器件支持具有可调节摆率的快速动态电压转换。此外，该器件还支持PMBus通信接口，用于报告系统的电压，电流，功率，温度和故障状况的遥测。所有可编程参数均可通过PMBus接口进行配置，并可作为新的默认值存储在NVM中，以最大限度地减少外部元件数量。
TPS53681器件采用耐热增强型40引脚QFN封装，额定值为工作温度范围为-40°C至125°C。
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 (#) |
| Number of Phases |
| Switching Frequency (Min) (kHz) |
| Switching Frequency (Max) (kHz) |
| Iq (Typ) (mA) |
| Features |
| Duty Cycle (Max) (%) |
| Operating Temperature Range (C) |
| Rating |
| Package Group |
| Control Mode |
| TPS53681 | TPS40422 | TPS40425 | TPS40428 | TPS53647 | TPS53667 |
|---|---|---|---|---|---|
| 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| 17 | 20 | 20 | 20 | 17 | 17 |
| 0.25 | 0.6 | 0.6 | 0.6 | 0.5 | 0.5 |
| 2.8125 | 5.6 | 5 | 5 | 2.5 | 2.5 |
| 300 | 60 | 40 | 40 | 240 | 420 |
| 2 | 2 | 2 | 2 | 1 | 1 |
| 8 | 2 | 2 | 2 | 4 | 6 |
| 300 | 200 | 200 | 200 | 300 | 300 |
| 1000 | 1000 | 1500 | 1500 | 1000 | 1000 |
| 13 | 18 | 18 | 18 | 8 | 6.1 |
| Adjustable Current Limit Dynamic Voltage Scaling Enable Light Load Efficiency Multiple Outputs PMBus Phase Interleaving Power Good Pre-Bias Start-Up Remote Sense Synchronous Rectification UVLO Adjustable Voltage Margining | Dynamic Voltage Scaling Enable Frequency Synchronization Multiple Outputs PMBus Phase Interleaving Remote Sense | Adjustable Current Limit Dynamic Voltage Scaling Enable Frequency Synchronization Phase Interleaving Power Good Pre-Bias Start-Up Remote Sense Synchronous Rectification UVLO Adjustable Voltage Margining | Adjustable Current Limit Dynamic Voltage Scaling Enable Frequency Synchronization PMBus Phase Interleaving Power Good Pre-Bias Start-Up Remote Sense Synchronous Rectification UVLO Adjustable Voltage Margining | Adjustable Current Limit Dynamic Voltage Scaling Enable Light Load Efficiency Output Discharge PMBus Phase Interleaving Power Good Pre-Bias Start-Up Remote Sense Synchronous Rectification UVLO Adjustable Voltage Margining | Adjustable Current Limit Dynamic Voltage Scaling Enable Light Load Efficiency PMBus Phase Interleaving Power Good Pre-Bias Start-Up Remote Sense Synchronous Rectification UVLO Adjustable Voltage Margining |
| 50 | 90 | 46 | 46 | 50 | 50 |
| -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| WQFN | VQFN WQFN | VQFN | VQFN | WQFN | WQFN |
| D-CAP+ | Voltage Mode | Voltage Mode | Voltage Mode | D-CAP+ | D-CAP+ |
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