UA78M
- Input voltage range (VIN): 5.3V to 30V
- Absolute maximum input voltage:
- Legacy chip: 35V
- New chip: 45V
- Fixed output voltage range (VOUT): 3.3V to 12V
- Output current (IOUT): Up to 500mA
- Quiescent current IQ: 4.5mA
- Built-in, short-circuit current limiting and thermal protection
- Stable without any external components
- Operating junction temperature range:
- Legacy chip C versions: 0°C to +125°C
- Legacy chip I version: –40°C to +125°C
- New chip: –40°C to +125°C
The UA78M fixed-voltage integrated-circuit voltage regulator is designed for a wide range of applications. Use the UA78M for on-card regulation to attenuate post regulation noise and distribution problems associated with single-point regulation. The UA78M delivers up to 500mA of output current. Additionally, the UA78M does not need external components for stable operation across the load current range. The internal current-limiting and thermal-shutdown features of this regulator help protect the device from overload.
The UA78M is characterized for the junction temperature range of –40°C to +125°C. Device performance for new and legacy chips is denoted throughout the document. See the Device Nomenclature table for more details.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UA78M 500mA, Positive-Voltage Linear Regulator datasheet (Rev. V) | PDF | HTML | 2025年 2月 20日 |
| Application note | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | 2025年 9月 23日 | |
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020年 8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 | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017年 8月 9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)。
MLTLDO2EVM-037 — 適用於 DCY、DDA 和 KVU 封裝的通用 LDO 線性電壓穩壓器評估模組
MLTLDO2EVM-037 多重封裝低壓差 (LDO) 評估模組 (EVM) 可讓設計工程師評估多種常用線性穩壓器封裝的運作情形及性能,以利在自己的電路應用中使用。此 EVM 配置包含 DDA、3 針腳和 5 針腳 KVU,以及用於工程師焊接和評估其零件的 DCY 封裝板上配置。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-223 (DCY) | 4 | Ultra Librarian |
| TO-220 (KCS) | 3 | Ultra Librarian |
| TO-252 (KVU) | 3 | 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。