LP87332DRHDT

Overview

The LP87332DRHDT is a specialized Power Management IC (PMIC) from Texas Instruments, featuring four integrated output regulators within a single package. It combines two high-current buck converters and two low-dropout linear regulators to provide flexible power distribution for complex system architectures. The device operates with an input voltage range of 2.5V to 5.5V and supports switching frequencies up to 2MHz. Outputs include dual 3A buck channels adjustable from 0.7V to 3.36V, and dual 300mA LDO channels adjustable from 0.8V to 3.3V. It is housed in a compact 28-VQFN package rated for industrial temperatures between -40°C and +125°C.

Feature Summary

• Integrates two independent high-current synchronous buck converters capable of delivering up to 3A each for efficient voltage step-down applications.
• Includes two additional low-dropout linear regulators providing stable auxiliary power rails with low noise characteristics for sensitive analog circuits.
• Supports high-frequency operation at 2MHz to minimize external passive component size while maintaining dynamic response stability.
• Features a compact surface-mount VQFN-28 package design optimized for space-constrained printed circuit board layouts.

Applications

• Portable electronic devices requiring multiple distinct voltage rails from a single power source
• Industrial control systems needing robust power management in harsh thermal environments
• Automotive infotainment units utilizing mixed-signal power distribution strategies

Procurement Notes

Verify the specific suffix DRHDT against official Texas Instruments documentation to confirm pinout compatibility and thermal pad configuration. Ensure that the selected variant matches the required operating temperature range and regulatory compliance standards for your target application environment before finalizing procurement decisions.

Selection Notes

Select this component when a design requires both high-efficiency switching regulation and low-noise linear regulation within a limited footprint. Evaluate the total current demand across all four outputs to ensure the package thermal dissipation capabilities remain within safe operating limits under maximum load conditions and ambient temperatures.

Part Context

This part belongs to the LP8733 series of multi-output PMICs designed by Texas Instruments. The series focuses on integrating multiple regulator types to reduce bill-of-materials count and simplify power tree design for embedded systems. The LP87332 variant specifically targets applications needing two high-power buck stages alongside auxiliary linear supplies.

Replacement Considerations

LP87332DRHDRQ1