TS3431 Datasheet 1.24 V adjustable shunt voltage reference Features 3 Adjustable output voltage: 1.24 to 24 V 2 Several precision levels 25 C 2%, 1%, 0.5% and 0.25% 1 Sink current capability: 0.4 to 100 mA SOT23-3L Industrial temperature range: - 40 C to + 105 C (Plastic micropackage) Performance compatible with industry standard TL431 Reference 1 Applications 3 Anode Computers Instrumentation Cathode 2 Battery chargers SOT23-3L Switch mode power supply (top view) Battery operated equipment Description The TS3431 is an adjustable shunt voltage reference with guaranteed temperature stability over the entire operating temperature range (- 40 C to + 125 C). The output voltage can be set to any value between 1.24 V and 24 V with an external resistor bridge. Available in SOT23-3 surface mount package, it can be used in application designs where space saving is critical. Maturity status link TS3431 DS3673 - Rev 7 - May 2019 www.st.com For further information contact your local STMicroelectronics sales office. TS3431TS3431 Diagram 1 Diagram Figure 1. Block diagram Cathode Reference + - VREF Anode DS3673 - Rev 7 page 2/18