TLE42994E V33

The TLE42994V33 is a monolithic integrated low dropout voltage regulator, especially designed for automotive applications that need to be in ON state during the car’s engine is turned off. An input voltage up to 45 V is regulated to an output voltage of 3.3 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 VQ,rt of typically 3.10 V. This threshold can be decreased by an external resistor divider. The power - on reset 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 undervoltage condition is indicated by setting the comparator’s output to low. Additionally, an enable function permitting enabling/disabling the regulator is also included. In case the regulator is disabled it consumes less current than 1 μA.

Applications

• General automotive applications.

Key features

• Output voltage 3.3 V ±2%
• Output current up to 150 mA
• Extreme low current consumption in ON state
• Enable function: Below 1 μA current consumption In OFF state
• Early warning
• Power - on and undervoltage reset with programmable delay time
• Reset low down to VQ = 1 V
• 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 4.4 V to 45 V
• Green Product (RoHS compliant)