TPS65145IPWPRQ1

The Texas Instruments TPS65145IPWPRQ1 is a specialized power management integrated circuit designed to provide the necessary voltages for thin-film transistor (TFT) LCD displays. This device offers a compact power supply solution with four channels, including a boost converter, a negative regulated charge pump, and a positive regulated charge pump, along with an auxiliary 3.3-V linear regulator controller.

Key electrical specifications include an input voltage range of 2.7V to 5.8V. The main output (VO1) is a boost converter capable of up to 15V. The second output (VO2) is a negative regulated charge pump down to -12V with 20mA capability, and the third output (VO3) is a positive regulated charge pump up to 30V with 20mA capability. The output voltage accuracy is less than 1%. The device features a fixed switching frequency of 1.6 MHz and a switch current limit of 2.3 A.

This IC is qualified for automotive applications and is AEC-Q100 qualified. It operates within a temperature range of -40°C to 85°C. The TPS65145IPWPRQ1 is available in a 24-HTSSOP package, suitable for surface mount applications. Protection features include short-circuit detection, overvoltage protection for all outputs, and thermal shutdown.

The auxiliary linear regulator controller can be utilized to generate a 3.3-V logic power rail, particularly useful in systems powered solely by a 5-V supply rail. This makes the TPS65145IPWPRQ1 a versatile component for various display power applications.