A8299SETTR-T

Overview

The A8299SETTR-T is a dual-channel LNB power and control regulator manufactured by Allegro MicroSystems. It integrates two high-side switches with independent current limiting and thermal protection, designed for satellite receiver applications. The device operates within an input voltage range of 10 V to 36 V, supporting standard LNB supply requirements. Each channel provides precise voltage regulation and overcurrent protection, ensuring reliable operation in harsh electromagnetic environments. The component utilizes a compact surface-mount package suitable for automated assembly.

Feature Summary

• Dual integrated high-side switch architecture for independent LNB channel control
• Built-in current limiting and thermal shutdown for enhanced circuit protection
• Wide operating input voltage range compatible with automotive and consumer power supplies

Applications

• Low Noise Block downconverter (LNB) power management in satellite receivers
• Dual-channel load switching for RF front-end modules
• Automotive infotainment system power distribution

Procurement Notes

Verify the specific suffix 'SETTR-T' against the manufacturer's official datasheet to confirm tape-and-reel packaging and lead-free status. Ensure compatibility with RoHS directives and check for any recent product change notices regarding pinout or thermal characteristics before finalizing procurement specifications.

Selection Notes

Select this component when designing systems requiring isolated dual-channel power delivery with integrated protection features. Evaluate the maximum load current requirements against the device's continuous output ratings. Consider the thermal performance in the intended enclosure environment due to the integrated power switches.

Part Context

This part belongs to the A8299 family of dual-channel regulators specialized for LNB applications. It replaces discrete switch solutions by integrating control logic and power stages into a single IC. The series is optimized for cost-sensitive consumer electronics and automotive satellite navigation systems requiring robust fault handling.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference availability through official Allegro MicroSystems channels or authorized distributor databases for direct pin-compatible alternatives.