TPS7A26
- Ultra-low IQ: 2.0 µA
- Input voltage: 2.4 V to 18 V
- Output voltage options available:
- Fixed: 1.25 V to 5.5 V
- Adjustable: 1.24 V to 17.4 V
- 1% accuracy over temperature
- Low dropout: 590 mV (max) at 500 mA
- Open-drain, power-good output
- Active overshoot pulldown protection
- Thermal shutdown and overcurrent protection
- Operating junction temperature: –40°C to +125°C
- Stable with 1-µF output capacitors
- Package: 6-pin WSON
The TPS7A26 low-dropout (LDO) linear voltage regulator supports a 2.4-V to 18-V input voltage range with very-low quiescent current (IQ). These features help modern appliances meet increasingly stringent energy requirements and help extend battery life in portable-power solutions.
The TPS7A26 is available in both fixed and adjustable versions. For more flexibility or higher output voltages, the adjustable version uses feedback resistors to set the output voltage from 1.24 V to 17.4 V. Both versions have 1% output regulation accuracy that provides precision regulation for microcontroller (MCU) references.
With the open-drain, power-good (PG) output the device can provide a reset to an MCU or be wire-ORed and level-shifted with other open-drain PGs to provide a system-wide PG or reset.
The TPS7A26 LDO operates more efficiently than standard linear regulators because the
maximum dropout voltage is less than 590 mV at 500 mA of current. This maximum dropout voltage
allows for 87.7% efficiency from a 5.7-V input voltage (VIN) to
5.0-V output voltage (VOUT).
For lower power applications, consider the TPS7A25.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS7A26 500-mA, 18-V, Ultra-Low IQ, Low-Dropout Linear Voltage Regulator With Power-Good datasheet (Rev. B) | PDF | HTML | 2019/10/11 | ||
| 應用說明 | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | 2025/9/23 | |||
| 白皮書 | Understanding the Foundations of Quiescent Current in Linear Power Systems | 2021/2/18 | ||||
| 應用說明 | A Topical Index of TI LDO Application Notes (Rev. F) | 2019/6/27 | ||||
| 電子書 | LDO Basics (Rev. A) | 2019/4/8 | ||||
| 技術文章 | LDO basics: dropout | PDF | HTML | 2017/3/16 |
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)。
TPS7A26EVM-021 — 具有電源良狀態好的 TPS7A26 500-mA 18-V 超低 IQ LDO 線性穩壓器評估模組
TPS7A26 評估模組 (EVM) 爲典型配置設計，用於評估 TPS7A26 裝置的運作和性能，其為 500mA 低壓差 (LDO) 線性穩壓器。
TPS7A26EVM-021 主要配置爲參考設計，可供需要高達 500 mA 動態負載電流的工程應用。
TIDA-010046 — 配備 IEEE802.3at Type-1 (≤ 12.95 W) PoE-PD 且符合 EMC 規範的 10/100-Mbps 乙太網路 PHY 參考設計
此參考設計使用低功耗乙太網路實體層 (PHY) DP83825 最佳化爲 10 至 100 Mbps，支援超過 CAT5e 電纜的 150 公尺長範圍，超出了 100 公尺 (328 英尺) 的標準乙太網路距離限制。此設計包含乙太網路纜線供電，並使用 IEEE802.3at Type-1 (13 W) PoE-PD TPS23755 裝置進行數據通訊，而此裝置具有整合式一次側穩壓返馳 DC/DC 控制器。此參考設計預先符合輻射放射、ESD 及 EFT 的測試規範。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DRV) | 6 | Ultra Librarian |
訂購與品質
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。