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Product Detailed Parameters
- Description：POWER TRAIN & SAFETY
- Series：*
- Mfr：STMicroelectronics
- Package：Tube
- Topology：-
- Number of Outputs：-
- Frequency - Switching：-
- Voltage/Current - Output 1：-
- Voltage/Current - Output 2：-
- Voltage/Current - Output 3：-
- w/LED Driver：-
- w/Supervisor：-
- w/Sequencer：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The L9749TR is a specialized power management integrated circuit (PMIC) designed for automotive applications, specifically serving as a Power Train & Safety (PTS) Smartpower solution. It functions as a dual-loop digital multi-phase buck controller with built-in non-volatile memory (NVM). The component is engineered for STM32M2x microprocessor unit (MPU) series applications, targeting requirements for low power consumption and high efficiency in complex power architectures.
Feature Summary
- Dual-loop digital control architecture for multi-phase buck conversion
- Integrated non-volatile memory (NVM) for configuration retention
- Optimized for low power and high efficiency operation
- Designed specifically for automotive power train and safety systems
Applications
- Automotive power train management systems
- Automotive safety critical subsystems
- STM32M2x MPU series application power supplies
- Multi-phase DC-DC conversion interfaces
Procurement Notes
Verify the specific suffix TR indicates tape and reel packaging when sourcing. Confirm AEC-Q100 qualification status for automotive reliability compliance. Ensure compatibility with the target STM32M2x MPU family before integration. Check for updated datasheet revisions to confirm pinout and electrical characteristics match the design requirements.
Selection Notes
Select this component when designing automotive systems requiring a dedicated PMIC for STM32M2x processors. It is suitable for applications demanding precise multi-phase voltage regulation with embedded memory capabilities. Consider its automotive qualification level if operating in harsh environmental conditions. Evaluate system power budgets against its low-power design features.
Part Context
This part belongs to STMicroelectronics' Power Train & Safety (PTS) Smartpower portfolio. It complements the STM32M2x microcontroller family by providing dedicated power management infrastructure. The device integrates control logic and power stages into a single solution, reducing board space and simplifying design complexity for automotive electronic control units.
Replacement Considerations
The L9749BABA is listed as a variant within the same product family. Verify functional equivalence and package compatibility before substitution. No other direct cross-references are confirmed in available documentation.
