LP87332DRHDR

Overview

The LP87332DRHDRQ1 is a Texas Instruments automotive-grade PMIC featuring four integrated power outputs in a 28-VQFN package. It combines two high-current buck converters and two low-dropout linear regulators (LDOs). The switching frequency operates at 2MHz. Input voltage ranges from 2.5V to 5.5V. Output 1 and 2 provide up to 3A with adjustable voltages from 0.7V to 3.36V. Output 3 provides 300mA with voltages from 0.8V to 3.3V. The device supports surface mount installation with wettable flanks and functions within an operating temperature range of -40°C to 125°C.

Feature Summary

• Integrates dual high-current buck converters and dual LDOs for compact multi-rail power architectures
• Features 2MHz switching frequency to support smaller external passive component sizes
• Includes wettable flank technology on the VQFN package to enhance solder joint inspection reliability

Applications

• Automotive infotainment systems requiring multiple regulated voltage rails
• Industrial appliance control units needing robust power management
• Test and measurement equipment utilizing mixed-signal power distribution

Procurement Notes

Verify that the specific suffix matches the required thermal and electrical specifications, as variations exist within the LP87332 family. Confirm AEC-Q100 qualification status if automotive compliance is mandatory. Check datasheet revisions for any updates to pin configurations or recommended circuit layouts. Ensure the 28-VQFN footprint aligns with the target PCB design constraints.

Selection Notes

Select this component when a single solution is needed for both high-current digital loads and precision analog supplies. Compare output current capabilities against load requirements, noting the distinction between the 3A buck channels and the 300mA LDO channel. Evaluate the 2.5V minimum input voltage against system battery profiles. Consider the 28-pin package density for space-constrained automotive applications.

Part Context

This part belongs to the LP8733x series of specialized power management ICs designed for complex electronic environments. It consolidates multiple regulator topologies into one small form factor. The series targets applications demanding high efficiency and precise voltage regulation across varying load conditions.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include LP873300RHDTQ1, LP87332ARHDRQ1, LP87332ARHDTQ1, LP87332BRHDRQ1, and LP87332BRHDTQ1.