LP873364RHDR

Overview

The LP873364RHDR is a specialized Power Management IC (PMIC) from the LP8733 series, manufactured by Texas Instruments. It integrates dual high-current buck converters and a low-dropout regulator within a single VQFN-28 package. The device operates with an input voltage range of 2.8 V to 5.5 V. Each buck converter channel supports an output current of 3 A, with adjustable output voltages ranging from 700 mV to 3.36 V. The component is designed for surface-mount installation and functions reliably across a wide temperature range from -40°C to +125°C.

Feature Summary

• Integrates two independent high-current synchronous buck converters capable of delivering up to 3 A each.
• Includes an integrated low-dropout linear regulator (LDO) for auxiliary power supply requirements.
• Features a compact VQFN-28 package design optimized for space-constrained printed circuit board layouts.

Applications

• Industrial appliances requiring multi-rail power distribution
• Test and measurement equipment needing stable voltage regulation
• General-purpose embedded systems utilizing mixed-signal power architectures

Procurement Notes

Verify that the specific suffix RHDR corresponds to the required VQFN-28 packaging and reel specifications for your assembly line. Confirm that the application environment remains within the specified -40°C to +125°C operating temperature limits. Ensure input voltage sources do not exceed the maximum 5.5 V rating to prevent device damage. Check for moisture sensitivity level requirements during storage and handling procedures.

Selection Notes

Select this component when a design requires two high-current buck outputs alongside an LDO in a minimal footprint. Compare against the LP87334FRHDR if a different output configuration or pin assignment is preferred. Consider the LP873364ARHDRQ1 variant if automotive qualification under AEC-Q100 standards is mandatory for the target application environment.

Part Context

This part belongs to the LP8733 family of multi-channel PMICs from Texas Instruments. These devices are engineered to consolidate multiple power rails into a single solution, reducing bill-of-materials complexity. The LP873364RHDR specifically targets applications demanding high efficiency and compact size without sacrificing current delivery capabilities.

Replacement Considerations

LP87334FRHDR offers similar functionality with potential differences in internal configuration or pin mapping. LP873364ARHDRQ1 provides equivalent electrical performance but includes automotive-grade reliability certification. Verify pin-to-pin compatibility and thermal characteristics before substituting these alternatives.