LM5019MRX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5019MRX/NOPB is a synchronous buck regulator from Texas Instruments featuring integrated high-side and low-side N-channel MOSFETs. It operates with an input voltage range of 7.5 V to 100 V and delivers up to 100 mA output current. The device utilizes a constant on-time control architecture for fast transient response. Key electrical parameters include a fixed switching frequency of 1 MHz, a maximum output voltage of 7.6 V, and a quiescent current of 1.75 mA. It functions within a temperature range of -40°C to +125°C and is housed in an 8-pin WSON package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel MOSFETs for compact design
• Employs constant on-time control architecture for rapid load 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 against official datasheets to confirm pinout and thermal pad configuration. Ensure compatibility with the target PCB footprint for the WSON-8 package. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 100 V is required alongside moderate output current capabilities. The integrated MOSFETs simplify bill of materials compared to discrete solutions. Consider the constant on-time topology for applications demanding fast transient response without external compensation networks. Evaluate thermal performance requirements based on the small form factor package.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM5019 family of synchronous buck regulators designed for high-voltage applications. It shares architectural similarities with other TI high-voltage controllers but distinguishes itself through integrated power switches. The family targets robust power management in environments requiring wide input ranges and reliable operation under varying load conditions.

Voltage Regulators - DC DC Switching Regulators FAQ

What control architecture does the LM5019 utilize?

It uses a constant on-time (COT) control architecture.

Is the LM5019MRX/NOPB a controller or a complete regulator?

It is a complete synchronous buck regulator with integrated high-side and low-side MOSFETs.