L9300TU80T

Power Management - Specialized Overview

The L9300TU80T is an automotive-grade flexible U-chip power management IC designed for braking and transmission applications. It features four voltage regulators, including one configurable buck regulator (5 V or 6.5 V), one linear/tracking regulator, and two selectable linear regulators. The device integrates six low-side/high-side current control drivers with integrated current sense paths and two high-side NFET pre-drivers. Electrical specifications include a 5.5 V to 19 V input voltage range, 1.3 A output current capability, and a switching frequency of 470 Hz. It operates within a temperature range of -40°C to +135°C and utilizes an 80-TQFP-EP package.

Power Management - Specialized Feature Summary

• Configurable supply block and valve driver stages tailored for transmission applications
• Integrated CAN transceiver with dual watchdogs and SPI interface
• High-precision current control with variable and fixed frequency algorithms
• AEC-Q100 qualified for automotive environment reliability

Power Management - Specialized Applications

• Automotive transmission systems
• Braking system control modules
• Wheel speed sensor interfaces

Power Management - Specialized Procurement Notes

Verify the specific suffix 'TU80T' against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration, as other suffixes may indicate tray packaging. Ensure the component meets the required AEC-Q100 qualification standards for your specific automotive application. Cross-reference the part number with the latest Product Change Notifications to verify any recent manufacturing updates or material changes.

Power Management - Specialized Selection Notes

Select this component when designing automotive transmission or braking systems requiring a highly integrated solution. The device combines multiple regulators and current-controlled drivers in a single package, reducing board space. Consider its BCD8s_auto technology implementation for robust performance in harsh environments. Verify that the 5.5 V to 19 V input range matches your vehicle's electrical architecture.

Power Management - Specialized Part Context

The L9300 belongs to STMicroelectronics' flexible U-chip family, specifically engineered for automotive power management. It is implemented in BCD8s_auto technology, ensuring compatibility with automotive environmental standards. The series addresses the need for integrated solutions in transmission and braking applications, combining power regulation with precise current control capabilities in a compact TQFP package.

Power Management - Specialized Replacement Considerations

Consult the official STMicroelectronics replacement guide for verified substitute part numbers. Ensure any alternative maintains the same 80-TQFP-EP footprint and AEC-Q100 qualification. Verify pin-to-pin compatibility and functional equivalence for all integrated regulators and drivers before substitution.