LNBH29QTR

Power Management - Specialized Overview

The LNBH29QTR is a specialized power management IC designed for satellite receiver applications. It functions as a low-noise LNB supply controller with an integrated step-up DC-DC converter. The device operates from a single input voltage source ranging from 8 V to 17.5 V, typically 12 V. It provides a programmable output voltage between 12.545 V and 19.457 V with a maximum output current of 750 mA. The component features I2C interface control and includes an internal 22 kHz tone generator. It is housed in a QFN-16 package and supports operation temperatures from -25 C to +125 C.

Power Management - Specialized Feature Summary

• Integrated step-up DC-DC converter enabling operation from a single 12 V supply source
• I2C bus interface for complete control and diagnostic monitoring of the LNB supply
• Built-in 22 kHz tone generator compliant with international satellite standards
• Internal protection mechanisms including overload, overtemperature, and short-circuit dynamic protection

Power Management - Specialized Applications

• Satellite receivers
• Single-tuner satellite receiver systems
• LNB powering and interfacing modules

Power Management - Specialized Procurement Notes

Verify the specific suffix QTR indicates the reel packaging format when ordering. Confirm that the required output voltage levels and current limits align with the target LNB specifications. Ensure the design accommodates the QFN-16 thermal requirements. Cross-reference the latest datasheet for any updates on RoHS compliance or environmental declarations before finalizing procurement.

Power Management - Specialized Selection Notes

Select this component for designs requiring a compact solution for LNB power supply control. The integrated nature reduces external component count compared to discrete solutions. Consider the I2C interface requirement for system integration. Verify compatibility with DiSEqC 1.x standards if signal switching is needed. Evaluate the thermal performance within the specified operating temperature range.

Power Management - Specialized Part Context

This part belongs to the LNBH29 series from STMicroelectronics, categorized under specialized PMICs. It is specifically engineered for satellite communication equipment. The QFN-16 package allows for surface-mount installation. The series focuses on providing efficient and reliable power management for low-noise block downconverters in consumer satellite reception hardware.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.