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.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TL1963A 1.5A Low-Noise Fast-Transient-Response Low-Dropout Regulator datasheet (Rev. H) | PDF | HTML | Jun 24, 2026 |
| Application note | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | Sep 23, 2025 | |
| Application note | Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) | Apr 7, 2021 | ||
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | Aug 18, 2020 | |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | Jun 27, 2019 | ||
| E-book | LDO Basics (Rev. A) | Apr 8, 2019 | ||
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | Aug 9, 2017 | |
| Technical article | LDO basics: dropout | PDF | HTML | Mar 16, 2017 | |
| Test report | TI Power Reference Design for Xilinx® Kintex®-7 (KC705) (Rev. A) | Dec 16, 2014 | ||
| Test report | TI Power Reference Design for Xilinx® Artix®-7 (AC701) | May 12, 2014 | ||
| User guide | PMP7977 User's Guide | Sep 11, 2013 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-223 (DCQ) | 6 | Ultra Librarian |
| TO-263 (KTT) | 5 | Ultra Librarian |
| SOT-223 (DCY) | 4 | Ultra Librarian |
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