MP8126DR-LF-Z

Overview

The MP8126DR-LF-Z is a step-up DC-DC converter IC from Monolithic Power Systems, designed for Low Noise Block (LNB) applications. It features a single output with selectable voltages of 13V, 14V, 18V, or 19V. The device operates within an input voltage range of 8V to 14V and supports surface-mount installation in a 24-QFN (4x4) package. It complies with RoHS3 standards and functions across a temperature range of -40°C to 125°C.

Feature Summary

• Provides regulated output voltage suitable for satellite receiver LNB power supply requirements
• Integrates high-efficiency switching converter topology for compact design
• Includes thermal protection mechanisms to ensure safe operation under varying load conditions

Applications

• Satellite television receiver systems
• Low Noise Block downconverter power modules
• Set-top box power distribution circuits

Procurement Notes

Verify component authenticity through authorized MPS distributors or certified partners. Confirm the specific suffix matches project requirements, as packaging variations may exist. Check current lifecycle status, as this part is marked as not recommended for new designs. Ensure compliance with regional environmental regulations such as RoHS3 before integration into final products.

Selection Notes

Select this component when designing power stages for LNB modules requiring stable 13V to 19V outputs from a 12V nominal source. Evaluate thermal performance within the 24-QFN package against system heat dissipation capabilities. Consider the limited availability and end-of-life status compared to newer MPS alternatives for long-term production planning.

Part Context

This IC belongs to the MP8126 series of monolithic switching regulators. It is categorized under PMIC special-purpose regulators. The device utilizes silicon technology and is housed in a leadless QFN package to minimize footprint while maintaining robust electrical characteristics for automotive and industrial environments.

Replacement Considerations

Publicly confirmed substitute: MP8126DR-LF-P.