A8294SESTR-T

Overview

The A8294SESTR-T is a single LNB supply and control voltage regulator manufactured by Allegro MicroSystems. It operates within an input voltage range of 10 V to 16 V and features a maximum operating temperature of +85°C and a minimum of -20°C. The device is housed in a QFN-16 surface-mount package with dimensions suitable for compact designs. It draws a typical operating supply current of 15 mA, ensuring efficient power management for satellite signal receiver applications requiring stable low-noise biasing.

Feature Summary

• Provides regulated output voltage specifically designed for Low Noise Block downconverter (LNB) power supply and control requirements.
• Integrates protection mechanisms to ensure reliable operation under varying load conditions typical in satellite reception systems.
• Utilizes a compact QFN-16 surface mount package to facilitate automated assembly and minimize printed circuit board footprint.

Applications

• Satellite signal receivers
• Digital satellite television tuners
• Low noise block downconverter (LNB) bias tees

Procurement Notes

Verify the specific suffix and tape-and-reel packaging configuration against the manufacturer's latest datasheet before ordering. Confirm that the QFN-16 thermal pad soldering process aligns with your assembly capabilities. Ensure the component meets RoHS compliance standards required for your target market regulations. Cross-reference the part number with authorized distributors to avoid counterfeit sources.

Selection Notes

Select this component when a dedicated linear regulator is required for LNB biasing within a 10 V to 16 V input window. It is appropriate for designs prioritizing low quiescent current and compact form factors over high-current delivery. Consider thermal dissipation requirements based on the voltage drop across the regulator and the expected load current of the connected LNB unit.

Part Context

This part belongs to the A829x series of specialized power management integrated circuits from Allegro MicroSystems. These devices are engineered specifically for the satellite communications industry, offering integrated solutions for powering and controlling downstream components in digital satellite receiving equipment.

Replacement Considerations

Publicly confirmed substitutes include the A8293SESTR-T and A8296SESTR-T. Verify pin compatibility and electrical specifications before substituting, as these parts share similar LNB regulator functions within the same product family.