TLE42344GHTSA1 Infineon

TLE42344G Low Dropout Linear Voltage Regulator Data Sheet Rev. 1.0, 2010-02-08 Automotive PowerLow Dropout Linear Voltage Regulator TLE42344G 1Overview Features Output voltage tolerance 2% Low dropout voltage Output current up to 100 mA Very low current consumption Overtemperature shutdown Output current limitation Suitable for use in automotive electronics Reverse polarity protection PG-SOT223-4 Green Product (RoHS compliant) AEC Qualified Functional Description TLE42344G is a 5 V low dropout fixed voltage regulator in an PG-SOT223-4 package. The IC regulates an input voltage V in the range 5.5 V < V < 45 V to V = 5.0 V. The maximum output current is more than 100 mA. This I I Qrated IC is protected against shortcircuit and overheat by the integrated output current limitation and the overtemperature shutdown Dimensioning Information on External Components The input capacitor C is necessary for compensating line influences. The output capacitor C is necessary for the i Q stability of the regulating circuit. Stability is guaranteed at values C 10 F and an ESR 10 within the Q operating temperature range. Circuit Description The control amplifier compares a reference voltage, which is kept highly precise by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control, working as a function of load current, prevents any over-saturation of the power element. Type Package Marking TLE42344G PG-SOT223-4 42344 Data Sheet 2 Rev. 1.0, 2010-02-08