TLE42712XK Infineon

5-V Low Drop Fixed Voltage Regulator TLE 4271-2 Features Output voltage tolerance 2% Low-drop voltage Integrated overtemperature protection Reverse polarity protection Input voltage up to 42 V P-TO220-7-11 Overvoltage protection up to 65 V ( 400 ms) Short-circuit proof Suitable for use in automotive electronics Wide temperature range Adjustable reset and watchdog time Green Product (RoHS compliant) AEC Qualified Functional Description P-TO220-7-12 The TLE 4271-2 is functional and electrical identical to TLE 4271. The device is a 5-V low drop fixed voltage regulator. The maximum input voltage is 42 V (65 V, 400 ms). Up to an input voltage of 26 V and for an output current up to 550mA it regulates the output voltage within a 2% accuracy. The short circuit protection limits the output current of more than 650 mA. The IC can be switched off P-TO263-7-1 via the inhibit input. An integrated watchdog monitors the connected controller. The device incorporates overvoltage protection and temperature protection that disables the circuit at overtemperature. Type Package TLE 4271-2 PG-TO220-7-11 TLE 4271-2 S PG-TO220-7-12 TLE 4271-2 G PG-TO263-7-1 Data Sheet 1 Rev. 2.7, 2007-06-25 TLE 4271-2 PG-TO220-7-11 PG-TO220-7-12 PG-TO263-7-1 17 RO D Q INH GND WI 17 1 7 AEP01938 Q RO D Q RO D INH GND WI INH GND WI AEP02017 AEP01939 Figure 1 Pin Configuration (top view) Table 1 Pin Definitions and Functions Pin Symbol Function 1I Input block to ground directly on the IC with ceramic capacitor. 2INH Inhibit 3RO Reset Output the open collector output is connected to the 5 V output via an integrated resistor of 30 k . 4GND Ground 5D Reset Delay connect a capacitor to ground for delay time adjustment. 6WI Watchdog Input 7Q 5-V Output block to ground with 22 F capacitor, ESR < 3 . Data Sheet 2 Rev. 2.7, 2007-06-25