TPS7B81
- Wide input voltage range: 3 V to 40 V
- Output current: 150 mA
- Ultra-low quiescent current (IQ):
- 2.7 µA typical at light loads
- 4.5 µA maximum at light loads
- Accuracy: 1.5% over line, load, and temperature
- Typical dropout voltage: 180 mV at 100 mA
- Wide enable voltage range: 2 V to VIN (40 V max)
- Input voltage transient tolerance: 45 V
- Fixed 5-V and 3.3-V output options
- Current limit and thermal shutdown protection
- Stable with a wide range of capacitors (1 µF to 200 µF)(1)
- Junction temperature range: –40°C to +150°C
- High thermal performance packages:
- DGN (8-pin HVSSOP), RθJA = 63.9°C/W
- DRV (6-pin WSON), RθJA = 72.8°C/W
(1)
(1)See the output capacitor requirements in the Recomended Operation Conditions table
The TPS7B81 is a low-dropout (LDO) linear regulator that operates from input voltages up to 40 V and can supply up to 150 mA in current. With only 2.7 µA of quiescent current at light loads, the device is an excellent choice for wide input supply designs and high cell count battery applications that need very low standby power consumption. The 45-V transient tolerance provides additional headroom for applications where inductive kickback may be present, thereby reducing external circuitry for voltage suppression.
With integrated short-circuit and overcurrent limiting, the TPS7B81 protects the system during fault conditions. In addition to the low standby power consumption, the very low dropout voltage in light load conditions helps maintain regulation even when powered by depleted batteries.
The TPS7B81 is available in thermally enhanced, 8-pin HVSSOP and 6-pin WSON packages. Both packages offer high thermal conductivity, and their small size supports compact design, making them well suited for space-limited applications such as power tools or motor drive modules and battery packs.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS7B81 150-mA, 40-V, Ultra-Low-IQ, Low-Dropout Regulator datasheet | PDF | HTML | 2020年 4月 23日 |
| White paper | Understanding the Foundations of Quiescent Current in Linear Power Systems | 2021年 2月 18日 | ||
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019年 6月 27日 | ||
| E-book | LDO Basics (Rev. A) | 2019年 4月 8日 | ||
| Application note | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | 2019年 2月 22日 | |
| EVM User's guide | TPS7B81EVM-025 Evaluation Module User's Guide | 2019年 2月 15日 | ||
| Technical article | LDO basics: dropout | PDF | HTML | 2017年 3月 16日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS7B81EVM-025 — TPS7B81 150-mA、無電池 (40-V)、超低 IQ LDO 穩壓器評估模組
TPS7B81EVM-025 評估模組 (EVM) 之設計是專爲典型配置用於評估 TPS7B81 的運作和性能，其為一款 150mA、高電壓、超低 IQ 的低壓差 (LDO) 線性穩壓器。
EVM 電路板主要配置爲參考設計，可供需要高達 150 mA 動態負載電流的工程應用。
TIDA-010276 — 適用於 BLDC 馬達控制的 36V、50A 3 相 GaN 逆變器參考設計
PMP23454 — 通用輸入、430W 電動工具充電器參考設計
TIDA-010253 — 適用於儲能系統的電池控制單元參考設計
此設計使用高性能微控制器進行開發和測試應用。這些功能讓此參考設計適用於高容量電池架應用的中央控制器。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HVSSOP (DGN) | 8 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。