LP87322FRHDTQ1

Overview

The LP87322FRHDTQ1 is an automotive-grade PMIC designed for TDA3x processors. It integrates two high-current buck converters and two linear regulators in a 28-pin VQFN package. The device operates with an input voltage range of 2.8 V to 5.5 V, supporting output currents up to 2 A per buck converter. Buck outputs are adjustable from 0.7 V to 3.6 V, while LDOs provide fixed or regulated outputs. Operating temperature spans -40°C to 125°C. Features include I2C control, spread-spectrum clocking, and power sequencing.

Feature Summary

• Integrates dual high-current step-down DC/DC converters and dual linear regulators for comprehensive power management.
• Supports I2C serial interface control for configuration and monitoring alongside hardware enable signals.
• Includes spread-spectrum clock generation capability to reduce electromagnetic interference emissions.
• Provides integrated power sequencing and thermal protection mechanisms for system reliability.

Applications

• Power supply design for Texas Instruments TDA3x automotive processors
• Advanced driver assistance systems (ADAS) requiring multi-rail power regulation
• Automotive radar and camera processing units
• In-vehicle infotainment processor platforms

Procurement Notes

Verify the complete part number including suffixes such as FRHDTQ1 against official Texas Instruments documentation to ensure correct package type, tape-and-reel quantity, and automotive qualification status. Confirm that the specific variant matches the required output voltage configurations and thermal performance specifications for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when designing power architectures for TDA3x-based automotive applications requiring integrated buck and LDO solutions. Ensure the 2.8 V to 5.5 V input range aligns with the vehicle's battery or bus voltage profile. Consider the 28-VQFN package constraints for thermal dissipation and PCB layout requirements relative to the 2 A current capacity of the buck converters.

Part Context

This device belongs to the LP8732 family of specialized power management ICs from Texas Instruments. It is engineered specifically to meet the stringent power delivery and regulatory requirements of modern automotive computing platforms. The integration of multiple regulators reduces component count and board space compared to discrete solutions.

Replacement Considerations

LP87322FRHDRQ1

FAQ

What is the maximum input voltage supported by the LP87322FRHDTQ1?

The device supports a maximum input voltage of 5.5 V.

Does the LP87322FRHDTQ1 support digital communication for control?

Yes, it features an I2C-compatible serial interface for configuration and monitoring.

What is the operating temperature range for this component?

The specified operating temperature range is -40°C to 125°C.