TL1963A
- Input voltage range: 2.4V to 20V
- Output voltage range (adjustable): 1.21V to 20V
- Output voltage range (fixed):
- Legacy chip: 1.5V, 1.8V, 2.5V and 3.3V
- New chip: 1.8V, 3.3V
- Output accuracy (over line, load
and temperature):
- Legacy chip: ±3% (all packages)
- New chip:
- +3%/-2% (DCY only)
- ±1.5% (DCQ and KTT only)
- Maximum output current (IOUT): Up to 1.5A
- Dropout voltage: 340mV (typical) for IOUT = 1.5A
- Output capacitor for stable operation: ≥ 10µF with ESR ≤ 3Ω
- Low noise: 23µVRMS (10Hz to 100kHz) for VOUT = 1.21V
- Integrated fault protection:
- Reverse-current, thermal shutdown and overcurrent protection (both legacy and new chip)
- Reverse-battery protection (legacy chip only)
- Package:
- 4-pin SOT-223 (DCY)
- 6-pin SOT-223 (DCQ)
- 5-pin DDPAK/TO-263 (KTT)
The TL1963A-xx regulators are low-dropout (LDO) regulators provides a robust, easy-to-use power management design for wide variety of applications. The device can supply 1.5A of output current with a dropout voltage of 340mV (typical) and supports wide output range (from 1.21V to 20V) in adjustable configuration. In addition, TL1963A-xx also supports tighter output accuracy ±1.5% across line, load and temperature (for DCQ, KTT package of new chip), fast transient response, and low output noise (23µVRMS in unity-gain adjustable configuration), making it an excellent choice for sensitive RF supply applications.
The TL1963A-xx regulators are stable with output capacitor as low as 10µF and supports ESR range up-to 3Ω. The TL1963A-xx (both legacy chip and new chip) has built-in protection mechanism for over-current, over-temperature (thermal shutdown) and reverse-current protection for reliable operation of the LDO and the legacy chip of TL1963A-xx also includes reverse-battery protection.
The TL1963A-xx is available in a 6.50mm × 7.0mm, 4-pin SOT-223 (DCY) [only fixed], 6.50mm × 7.06mm, 6-pin SOT-223 (DCQ) and 10.16mm × 15.24mm, 5-pin DDPAK/TO-263 (KTT) package for fixed and adjustable outputs.
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 | TL1963A 1.5A Low-Noise Fast-Transient-Response Low-Dropout Regulator datasheet (Rev. H) | PDF | HTML | 2026/6/24 | ||
| 應用說明 | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | 2025/9/23 | |||
| 應用說明 | Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) | 2021/4/7 | ||||
| 應用說明 | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020/8/18 | |||
| 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 | ||||
| 應用說明 | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017/8/9 | |||
| 技術文章 | LDO basics: dropout | PDF | HTML | 2017/3/16 | |||
| 測試報告 | TI Power Reference Design for Xilinx® Kintex®-7 (KC705) (Rev. A) | 2014/12/16 | ||||
| 測試報告 | TI Power Reference Design for Xilinx® Artix®-7 (AC701) | 2014/5/12 | ||||
| 使用指南 | PMP7977 User's Guide | 2013/9/11 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-223 (DCQ) | 6 | Ultra Librarian |
| TO-263 (KTT) | 5 | Ultra Librarian |
| SOT-223 (DCY) | 4 | 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。