LM5157RTER

Voltage Regulators - DC DC Switching Regulators Overview

The LM5157RTER is a switching voltage regulator from Texas Instruments, housed in a 16-WQFN package. It supports Boost, Flyback, and SEPIC topologies with an adjustable output voltage ranging from 1.5 V to 48 V. The device accepts an input voltage between 2.9 V and 45 V and provides a switch current of 6.5 A. Operating frequencies range from 100 kHz to 2.2 MHz. It functions within a temperature range of -40°C to +125°C TJ.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports multiple converter topologies including boost, flyback, and SEPIC configurations.
• Features an integrated power stage capable of delivering high switch currents for efficient power conversion.
• Includes programmable switching frequency to optimize external component size and system performance.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supply systems requiring isolated or non-isolated regulation
• Automotive electronics utilizing standard grade components
• Point-of-load (POL) conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'RTER' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the standard commercial temperature rating aligns with the thermal design of the target application environment before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single IC must support diverse topologies such as flyback or SEPIC alongside standard boost applications. Ensure the input voltage range covers the minimum source requirements and that the 6.5 A switch current capability meets peak load demands without exceeding thermal limits in the WQFN-16 package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5157 family of wide input voltage synchronous buck/boost controllers. Unlike automotive-qualified variants like the LM51571QRTERQ1, this specific model is designed for general industrial and commercial use, offering flexibility in topology selection while maintaining compact footprint requirements through its surface-mount packaging.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct functional substitutes include other members of the LM515x family, such as the LM5158RTER for higher voltage handling or the LM51571RTER for similar specifications. Verify pin compatibility and thermal characteristics when transitioning between these related devices.