LP873220RHDT

Overview

The LP873220RHDT is a specialized power management IC featuring two high-efficiency step-down (buck) converters and two low-dropout linear regulators. It operates within an input voltage range of 2.5 V to 5.5 V, with buck outputs adjustable from 700 mV to 3.6 V. The device integrates a switching frequency of 2 MHz and supports surface-mount installation in a 28-pin VQFN package. It is designed for industrial applications with an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates dual high-efficiency buck converters and dual LDOs for comprehensive power sequencing
• Supports fixed 2 MHz switching frequency for compact external component sizing
• Includes internal soft-start and tracking capabilities for controlled power-up sequences

Applications

• Industrial control systems requiring multi-rail power distribution
• Embedded processors needing synchronized buck and LDO outputs
• Automotive entry-level infotainment or gateway modules

Procurement Notes

Verify the specific suffix RHDT against the manufacturer's current datasheet to confirm pinout compatibility and thermal performance specifications. Ensure the procurement channel provides original manufacturer packaging to maintain component integrity during storage and handling. Cross-reference the revision level to avoid discrepancies in electrical characteristics or application circuit recommendations.

Selection Notes

Select this component when a single IC solution is required to provide both switched and linear regulation rails. It is suitable for designs prioritizing board space reduction over maximum efficiency at very light loads. Consider the 28-VQFN package constraints for thermal dissipation requirements in enclosed industrial enclosures.

Part Context

This part belongs to the LP8732 family of integrated power supplies. It combines multiple regulator types into a single package to simplify bill-of-materials and reduce layout complexity. The design targets applications requiring precise voltage sequencing and tight load regulation across varying ambient temperatures.

Replacement Considerations

Check for LP873220RHDR as a potential tape-and-reel alternative if reel quantity requirements differ. Verify functional equivalence with LP873220RHDTQ1 if automotive qualification is required instead of industrial grade.