TLE42794GMXUMA2

OPTIREG Linear TLE42794 5V low drop fixed voltage regulator Features Output voltage 5 V 2% Output current up to 150 mA Very low current consumption Early Warning Power-on and undervoltage reset with programmable delay time Reset low down to V = 1 V Q Adjustable reset threshold Very low dropout voltage Output current limitation Reverse polarity protection Overtemperature protection Suitable for use in automotive electronics Wide temperature range from -40 C up to 150 C Input voltage range from -42 V to 45 V 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 TLE42794 is a monolithic integrated low dropout voltage regulator, especially designed for automotive applications. An input voltage up to 45 V is regulated to an output voltage of 5.0 V. The component is able to drive loads up to 150 mA. It is short-circuit protected by the implemented current limitation and has an integrated overtemperature shutdown. A reset signal is generated for an output voltage V of typically 4.65 V. This threshold can be decreased by an external resistor divider. The power-on reset Q,rt delay time can be programmed by the external delay capacitor. The additional sense comparator provides an early warning function: Any voltage (e.g. the input voltage) can be monitored, an under-voltage condition is indicated by setting the comparators output to low. If pull-up resistors are desired at the outputs of the reset Data Sheet 1 Rev. 1.3 www.infineon.com/OPTIREG-Linear 2018-10-02 OPTIREG Linear TLE42794 5V low drop fixed voltage regulator and the sense comparator, the TLE42694 with integrated pull-up resistors can be used instead of the TLE42794. Dimensioning information on external components The input capacitor C is recommended for compensation of line influences. The output capacitor C is I Q necessary for the stability of the control loop. Circuit description The control amplifier compares a reference voltage to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. The component also has a number of internal circuits for protection against: Overload Overtemperature Reverse polarity Type Package Marking TLE42794G PG-DSO-8 42794G TLE42794GM PG-DSO-14 42794GM TLE42794E PG-SSOP-14 exposed pad 42794E Data Sheet 2 Rev. 1.3 2018-10-02