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TPS53681是一款多相降壓控制器,具有雙通道,內(nèi)置非易失性存儲器(NVM)和PMBus?接口,兼容兼容采用TI NexFET?功率級。先進(jìn)的控制功能,如具有下沖減少(USR)的D-CAP +?架構(gòu),可提供快速瞬態(tài)響應(yīng),低輸出電容和高效率。該裝置還提供了新穎的相位交錯策略和動態(tài)相位切除,以在不同負(fù)載下提高效率。該器件支持具有可調(diào)節(jié)擺率的快速動態(tài)電壓轉(zhuǎn)換。此外,該器件還支持PMBus通信接口,用于報(bào)告系統(tǒng)的電壓,電流,功率,溫度和故障狀況的遙測。所有可編程參數(shù)均可通過PMBus接口進(jìn)行配置,并可作為新的默認(rèn)值存儲在NVM中,以最大限度地減少外部元件數(shù)量。
TPS53681器件采用耐熱增強(qiáng)型40引腳QFN封裝,額定值為工作溫度范圍為-40°C至125°C。
所有商標(biāo)均為其各自所有者的財(cái)產(chǎn)。
| ? |
|---|
| 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+ ? ? |