Triple Voltage Regulator TLE 4471 Features Triple Voltage Regulator Output Voltage 5 V with 450 mA Current Capability Two tracked Outputs for 50 mA and 100 mA Enable Function for main and tracked Output(s) Reset with adjustable Threshold Undervoltage- and Power On-Reset Watchdog Independent Watchdog- and Reset delay Wide Temperature Range Overtemperature Protection Overvoltage Protection Reverse Polarity Proof Green Product (RoHS compliant) AEC Qualified Functional Description The TLE 4471 is a monolithic integrated very low-drop triple voltage regulator. The main output supplies loads up to 450 mA and the additional tracked outputs can provide up to 50 mA and 100 mA. In addition the device includes a watchdog for microcontroller- supervision, an undervoltage reset, a power on reset and extended enabling features. The watchdog and reset timing can be chosen independently of each other. The TLE4471 is available in a Power PG-DSO-20 package. It is designed to supply microprocessor systems under the severe condition of automotive applications and therefore it is equipped with additional protection against overload, short circuit and overtemperature. Of course the TLE 4471 can be used in other applications as well. The TLE 4471 operates in the temperature range of T = -40 to 150 C. j Type Package TLE 4471 G Power PG-DSO-20 Data Sheet 1 Rev. 1.6, 2009-02-03 TLE 4471 Self Protection - Over Temperature - Short Circuit - Reverse Polarity Proof ESD Protection I Main E1 1 5 V 2%, 450 mA Regulator E2 Q1 E3 Tracker 1 Q2 100 mA, 0.5% Tracking REF2 Reference Voltage Tracker 2 50 mA, 0.5% Tracking EN Q3 Reference Voltage REF3 Reset Generator Reset DR Delay R Reset RADJ Level Adjust W Watchdog DW TLE 4471 AES02864 Figure 1 Block Diagram Data Sheet 2 Rev. 1.6, 2009-02-03