Texas Instruments

LM5161PWPT  

DC Switching Voltage Regulators

LM5161PWPT Description

The LM5161PWPT from Texas Instruments is a high-performance, synchronous buck/flyback DC-DC converter designed for demanding industrial and automotive applications. This adjustable-output regulator supports a wide input voltage range of 4.5V to 100V, making it ideal for systems requiring robust power management in harsh environments. With an output current capability of 1A and an adjustable output voltage range of 2V to 92V, it offers exceptional flexibility for diverse power supply designs. The device operates at a switching frequency range of 50kHz to 1MHz, enabling optimization for efficiency or size. Packaged in a 14-pin HTSSOP and available in tape & reel (TR), it is suited for automated surface-mount assembly.

LM5161PWPT Features

• Wide Input Range (4.5V–100V): Supports high-voltage inputs, reducing the need for additional pre-regulation.
• Synchronous Rectification: Improves efficiency (up to 90%) and reduces heat dissipation compared to non-synchronous designs.
• Isolation-Capable Output: Enables use in isolated power topologies like flyback converters.
• Adjustable Frequency (50kHz–1MHz): Allows trade-offs between efficiency and component size.
• High Integration: Combines a MOSFET driver, precision reference, and protection features (thermal shutdown, UVLO).
• RoHS3 & REACH Compliant: Meets environmental and safety standards for global deployment.

LM5161PWPT Applications

• Industrial Automation: Power supplies for PLCs, motor drives, and sensors in 24V/48V systems.
• Automotive Electronics: On-board chargers, infotainment, and ADAS modules requiring high-voltage tolerance.
• Telecom/Networking: Isolated DC-DC converters for base stations and PoE applications.
• Renewable Energy: MPPT controllers and battery management in solar/wind systems.
• Medical Devices: Low-noise, isolated power for patient monitoring equipment.

Conclusion of LM5161PWPT

The LM5161PWPT stands out for its wide input range, high efficiency, and isolation capability, making it a versatile solution for high-voltage power conversion. Its synchronous topology and adjustable frequency provide design flexibility, while its robust package ensures reliability in demanding environments. Ideal for industrial, automotive, and telecom applications, this regulator combines performance with compliance to modern environmental standards. Engineers seeking a compact, high-efficiency solution for complex power architectures will find the LM5161PWPT an excellent choice.

LM5161PWPT Documents

Download datasheets and manufacturer documentation for LM5161PWPT

PCN Assembly/Origin :

Alt Base Metal 31/Jul/2020      

Datasheets :

LM5161 Datasheet      

HTML Datasheet :

LM5161 Datasheet      

PCN Design/Specification :

Marking Standardization 17/Dec/2021       LM5161 21/Feb/2018