LM5019MR/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5019MR/NOPB is a synchronous buck regulator from Texas Instruments featuring a constant on-time control architecture. It supports an input voltage range of 7.5 V to 100 V and delivers up to 100 mA output current. The device integrates high-side and low-side N-channel MOSFETs, enabling efficient power conversion in a compact SO-PowerPAD-8 package. It operates with a fixed switching frequency of 1 MHz and includes adjustable soft-start functionality. The component functions reliably across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel MOSFETs for synchronous rectification
• Utilizes constant on-time control architecture for fast transient response
• Supports wide input voltage range suitable for industrial applications

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive electronics power distribution
• Communication equipment power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MR' indicates the tube packaging format distinct from the 'MRX' reel variant. Confirm RoHS compliance status via the manufacturer datasheet before integration. Ensure the SO-PowerPAD-8 thermal pad connection is properly managed during assembly to maintain specified operating temperatures.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 100 V is required with moderate output current capabilities. The constant on-time topology offers simpler compensation compared to voltage mode control. Consider the integrated MOSFETs to reduce external component count and board space requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5019 family of high-voltage synchronous buck regulators. It shares architectural similarities with the LM5018 but differs in output current capacity. The device is designed for applications requiring robust performance under varying load conditions within automotive and industrial environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5019SDX/NOPB serves as a pin-compatible alternative in a smaller WSON-8 package. Verify thermal performance differences between the SO-PowerPAD-8 and WSON-8 packages when substituting.