Infineon Technologies AG Linear Voltage Regulators for Automotive Applications | OPTIREG™ TLF80511TC

The TLF80511TC is a linear low dropout voltage regulator for load currents up to 400 mA in D²PAK, DPAK and DSO8-EP packages with fixed output voltage (5V and 3.3V).

An input voltage of up to 40 V is regulated to V _Q,nom = 5 V with ±2 % precision. The TLF80511TC with a typical quiescent current of 38 µA, is the ideal solution for systems requiring very low operating currents, such as those permanently connected to a battery. It features a very low dropout voltage of 100 mV, when the output current is less than 100 mA. In addition, the dropout region begins at input voltages of 3.3 V (extended operating range). This makes the TLF80511 suitable to supply automotive systems. In addition, the TLF80511TC’s new fast regulation concept requires only a single, 1 µF output capacitor to maintain stable regulation.

Summary of Features

• Output Voltage 5 V
• Output Voltage Precision ± 2 %
• Output Current up to 400 mA
• Ultra Low Current Consumption 38 µA
• Very Low Dropout Voltage: 100 mV at 100 mA Output Current
• Extended Operating Range Starting at 3.3 V
• Small Output Capacitor 1 µF
• Output Current Limitation
• Overtemperature Shutdown
• Suitable for Use in Automotive Electronics
• Wide Temperature Range from -40 °C up to 150 °C
• Green Product (RoHS compliant)
• AEC Qualified

Benefits

• Very Wide Input Voltage Range
• Fast Voltage Regulation Loop
• Supports Voltage Cranking Application
• Very Low Dropout

Potential Applications

• Automotive General ECU
• Automotive Dashboard
• Clima Control (HVAC)
• Start-Stop Control Unit

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