TLE42364G Infineon

TLE42364G Low Dropout Linear Voltage Regulator TLE42364G Data Sheet Rev. 1.0, 2010-02-08 Automotive PowerLow Dropout Linear Voltage Regulator TLE42364G 1Overview Features Output voltage 5 V Output voltage tolerance 2% 100 mA current capability Very low current consumption Low dropout voltage Overtemperature shutdown Reverse polarity protection Output current limitation PG-SOT223-4 Wide temperature range Suitable for use in automotive electronics Enable Green Product (RoHS compliant) AEC Qualified Functional Description TLE42364G is a low dropout voltage regulator for 5 V supply in a PG-SOT223-4 SMD package. The IC regulates an input voltage V in the range of 5.5 V < V < 45 V to V = 5 V. The maximum output current is more than 100 I I Q,nom mA. The IC can be switched off via the enable input, which causes the current consumption to drop below 10 A. The IC is protected against shortcircuit and overheat by the incorporated output current limitation and the overtemperature shutdown. Choosing 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 whole Q operating temperature range. Circuit Description The device includes a precise reference voltage, which is very accurate due to resistor adjustment. A control amplifier compares the divided output voltage to this reference voltage and drives the base of the PNP series transistor through a buffer. Saturation control as a function of the load current prevents any oversaturation of the power element. Type Package Marking TLE42364G PG-SOT223-4 42364 Data Sheet 2 Rev. 1.0, 2010-02-08