Datasheet - TS33 - Micropower high precision series voltage reference
Document overview
- Manufacturer or author: STMICROELECTRONICS
- PDF pages: 24
Technical content
Datasheet sections
- 1 Pin configuration
- 2 Maximum ratings
- 3 Typical application
- 4 Electrical characteristics
- 5 Typical performance characteristics
- 6 Package information
- 6.1 QFN8 package information
- 6.2 SOT23-3L package information
- 6.3 SOT323-3L package information
- 7 Ordering information
Features
- Ultra low operating current: 3.9 μA (typ.) at 25 °C
- High initial accuracy: +/-0.15 %
- Stable when used with capacitive loads
- Extended temperature range: -40 to +125 °C
- 30 ppm/°C maximum temperature coefficient
- Available in QFN8 1.5x1.5, SOT23-3L and SOT323-3L packages.
Applications
- Portable equipment
- Data acquisition systems
- Instrumentation
- Medical equipment
- Test equipment
Description
The TS33 family of low power series voltage references is capable of providing stable and precise output voltages with an initial accuracy of 0.15% over an extended temperature range (-40 to +125 °C). The ultra low operating current is a key advantage for power-restricted designs. In addition, the TS33 is very stable over the entire operating temperature range, making it suitable for high-precision applications. Available in QFN8, SOT23-3L and SOT323-3L surface mount packages, the TS33 can be designed in applications where space saving is a critical issue. QFN8 1.5x1.5 SOT23-3L SOT323-3L Maturity status link TS33 Micropower high precision series voltage reference TS33 Datasheet DS12001 - Rev 6 - December 2025 For further information, contact your local STMicroelectronics sales office.
1 Pin configuration
Figure 1. Pin configuration (top view)
2 Maximum ratings
Table 1. Absolute maximum ratings
- Pd has been calculated with Tamb = 25 °C and Tjmax = 150 °C
operation under these conditions is not implied. Table 2. Thermal data Table 3. Recommended operating conditions
3 Typical application
Figure 2. Typical application circuit
4 Electrical characteristics
VIN = 5 V, ILOAD = 0 mA, Tamb = 25 °C (unless otherwise specified). Table 4. Electrical characteristics for TS3312
Electrical characteristics
Table 5. Electrical characteristics for TS3320
Table 6. Electrical characteristics for TS3325
Table 7. Electrical characteristics for TS3330
Table 8. Electrical characteristics for TS3333
5 Typical performance characteristics
Figure 3. Output voltage vs. temperature Figure 4. Output voltage vs. input voltage Figure 5. Quiescent current vs. input voltage Figure 6. Dropout voltage vs. load current
6 Package information
To meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions, and product status are available at: www.st.com. ECOPACK is an ST trademark.
6.1 QFN8 package information
Figure 19. QFN8 package outline
Package information
DS12001 - Rev 6 page 13/24
Table 9. QFN8 mechanical data Table 10. QFN8 tolerance of form and position Figure 20. QFN8 recommended footprint DS12001 - Rev 6 page 14/24
6.2 SOT23-3L package information
Figure 21. SOT23-3L package outline DS12001 - Rev 6 page 15/24
Table 11. SOT23-3L mechanical data Figure 22. SOT23-3L recommended footprint DS12001 - Rev 6 page 16/24
6.3 SOT323-3L package information
Figure 23. SOT323-3L package outline Table 12. SOT323-3L mechanical data DS12001 - Rev 6 page 17/24
Figure 24. SOT323-3L recommended footprint DS12001 - Rev 6 page 18/24
7 Ordering information
Table 13. Order codes
Ordering information
DS12001 - Rev 6 page 19/24
Revision history
Table 14. Document revision history 05-Sep-2017 1 Initial release. 26-Sep-2018 2 Added new order codes TS3325AQPR and TS3333AQPR in Table 9. Order codes. 16-Mar-2020 3 Added Table 5. Electrical characteristics for TS3325. Removed footnote in Table 10. Table 5 new order code in Section 7. 07-Dec-2021 5 Removed footnote Table 13. Order codes. 15-Dec-2025 6 Updated features and description on the cover page.
IMPORTANT NOTICE – READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. In the event of any conflict between the provisions of this document and the provisions of any contractual arrangement in force between the purchasers and ST, the provisions of such contractual arrangement shall prevail. The purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgment. The purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of the purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. If the purchasers identify an ST product that meets their functional and performance requirements but that is not designated for the purchasers' market segment, the purchasers shall contact ST for more information. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2025 STMicroelectronics – All rights reserved TS33 DS12001 - Rev 6 page 24/24