Infineon's TLF4277-2 is the ideal companion IC to supply active antennas for car infotainment applications. An adjustable output voltage means the TLF4277-2 can supply the majority of standard active antennas such as FM/AM, DAB, XM and SIRIUS.
The TLF4277-2 is a monolithic integrated low dropout voltage regulator capable of supplying loads up to 300 mA. For an input voltage up to 40 V, the TLF4277-2 provides an adjustable output voltage in a range from 5 V up to 12 V.
The integrated current monitoring function is a unique feature that provides diagnosis and system protection functionality. Fault conditions such as overtemperature and output overvoltage are monitored and indicated at the current sense output. The maximum output current limit of the device is adjustable to provide additional protection for the connected load.
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The IC can be disabled via the enable function to lower power consumption. The PG-SSOP14 EP package provides enhanced thermal performance on an SO8 footprint.
Features
- Integrated current monitor
- Overvoltage, overtemperature and overcurrent protection
- Adjustable output voltage
- Output current up to 300 mA
- Adjustable output current
Applications
- Active antennae for AM/FM, DAB, GPS, satellite systems
- Microphones for hands-free car kits
- ATV camera systems
- Industrial applications
- LNAs (digital TV, AM FM, ...)
