Texas Instruments

LM5145RGYT  

DC DC Switching Controllers

LM5145RGYT Description

The LM5145RGYT from Texas Instruments is a high-performance synchronous buck DC-DC controller designed for demanding power conversion applications. This ROHS3 Compliant and REACH Unaffected device operates over a wide 6V to 75V input range, making it suitable for industrial, automotive, and telecom systems. With a switching frequency range of 100kHz to 1MHz, it offers flexibility for optimizing efficiency and component size. The 20VQFN package with wettable flanks ensures reliable surface-mount assembly, while its MSL 2 (1 Year) rating guarantees moisture sensitivity compliance.

LM5145RGYT Features

• Wide Input Range: Supports 6V–75V, ideal for 12V/24V/48V bus applications.
• Synchronous Rectification: Enhances efficiency by reducing conduction losses.
• Advanced Control Features: Includes enable, frequency control, power good, and soft-start for robust system integration.
• Clock Synchronization: Allows synchronization to an external clock for noise-sensitive designs.
• 100% Duty Cycle Capability: Ensures continuous operation during input voltage dips.
• Surface-Mount Design: Wettable flank QFN package improves solder joint inspection in automated assembly.

LM5145RGYT Applications

• Industrial Power Systems: Used in PLCs, motor drives, and factory automation due to its wide input range and robustness.
• Automotive Electronics: Ideal for infotainment, ADAS, and 48V mild-hybrid systems, meeting stringent reliability requirements.
• Telecom/Server PSUs: Efficiently steps down high-voltage rails (e.g., 48V to 12V/5V) with minimal losses.
• Battery-Powered Equipment: Supports battery management systems (BMS) with low standby current and high efficiency.

Conclusion of LM5145RGYT

The LM5145RGYT stands out as a versatile, high-efficiency buck controller, combining wide input range, synchronous operation, and advanced control features. Its 1MHz switching frequency capability and wettable flank packaging make it a superior choice for modern power designs requiring reliability, efficiency, and manufacturability. Whether in automotive, industrial, or telecom applications, this controller delivers optimal performance while simplifying system integration.

LM5145RGYT Documents

Download datasheets and manufacturer documentation for LM5145RGYT

Datasheets :

LM5145 Datasheet      

HTML Datasheet :

LM5145 Datasheet