L9001

Power Management - Specialized Overview

The L9001 is an automotive power supply IC featuring three voltage regulators: a buck converter, a configurable buck or linear regulator, and a dedicated ADC linear regulator. It operates within a 5.5 V to 18 V input range and delivers up to 1 A output current. The device integrates comprehensive supervision and diagnosis functions, including over-temperature detection, output under/over-voltage reset generation, and a configurable watchdog. Qualified to AEC-Q100 standards, it supports low-power operation modes while maintaining active main regulators.

Power Management - Specialized Feature Summary

• Integrates one asynchronous switch mode regulator, one configurable buck or linear regulator, and one dedicated ADC linear regulator for flexible power supply schemes.
• Includes integrated supervision and diagnosis blocks with fail-safe functionality, such as output under/over voltage reset generation and configurable watchdog.
• Supports low power operation mode with reduced battery consumption while keeping main regulators active.
• AEC-Q100 qualified for automotive applications with over-temperature shutdown protection.

Power Management - Specialized Applications

• Automotive microcontroller (μC) core and peripheral power supply
• ADC reference supply in automotive systems
• Smart power devices for multiple voltage regulation schemes

Power Management - Specialized Procurement Notes

Verify the specific ordering suffix to confirm package type and reel specifications. Confirm that the component meets AEC-Q100 qualification requirements for your target automotive application. Check datasheet details for humidity sensitivity level and storage conditions. Ensure compatibility with your system's input voltage range of 5.5 V to 18 V before procurement.

Power Management - Specialized Selection Notes

Select this device when a single solution is needed for multiple regulated outputs in automotive environments. Consider its configurable second stage for either buck or linear regulation based on efficiency and noise requirements. Evaluate the integrated diagnostic features if system reliability and fault monitoring are critical design constraints.

Power Management - Specialized Part Context

The L9001 belongs to STMicroelectronics' Simple Power Supply (SPS) family, designed specifically for automotive applications. It utilizes advanced BCD technology to integrate multiple regulators and diagnostic blocks into a compact PowerSSO-24 package. This series targets designers seeking consolidated power management solutions with built-in safety features.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official STMicroelectronics resources for potential cross-references or updated product line replacements.