OPTIREG linear TLE4254 High accuracy low dropout voltage tracking regulator Features 70 mA output current capability Very tight output tracking tolerance to reference Output voltage adjustable down to 2.0 V PG-DSO-8 Stable operation with 1 F ceramic output capacitor Flexibility of output voltage adjust higher or lower than reference, proportional to the reference voltage (version GA / EJ A) Status output to indicate short circuits at the output (version GS / EJ S) Very low dropout voltage of typ. 0.2 V maximum output current Combined reference / enable input Very low current consumption in OFF mode Wide input voltage range -20 V V +45 V I Wide temperature range: -40 C T 150 C j PG-DSO-8 Output protected against short circuit to GND and battery exposed pad Input protected against reverse polarity Overtemperature protection Green product (RoHS compliant) Potential applications General automotive applications. Product validation Qualified for automotive applications. Product validation according to AEC-Q100/101. Description The OPTIREG linear TLE4254 is a monolithic integrated low-dropout voltage tracking regulator with high accuracy in small PG-DSO-8 packages. The IC is designed to supply off-board systems, e.g. sensors in powertrain management systems under the severe conditions of automotive applications. Therefore, the IC is equipped with additional protection functions against reverse polarity and short circuit to GND and battery. With supply voltages up to 40 V, the output voltage follows a reference voltage applied at the adjust input with very high accuracy. The reference voltage applied directly to the adjust input or by an e. g. external resistor divider can be 2.0 V at minimum. Datasheet Rev. 1.3 www.infineon.com/OPTIREG-linear 1 2021-06-15 OPTIREG linear TLE4254 High accuracy low dropout voltage tracking regulator The output is able to drive loads up to 70 mA while the device follows with high accuracy the e. g. 5 V output of a main voltage regulator acting as reference. The TLE4254 can be set into shutdown mode in order to reduce the current consumption to a minimum. This suits the IC for low power battery applications. Versions GS and EJ S offer an open collector status output indicating an overvoltage and undervoltage error condition of the output voltage. Versions GA and EJ A allow setting the output voltage to higher value than the reference voltage by connecting a voltage divider to the feedback pin FB. Type Package Marking TLE4254GA PG-DSO-8 4254GA TLE4254GS PG-DSO-8 4254GS TLE4254EJA PG-DSO-8 exposed pad 4254EJA TLE4254EJS PG-DSO-8 exposed pad 4254EJS Datasheet 2 Rev. 1.3 2021-06-15