LP8731QYZRRQ1

Overview

The LP8731QYZRRQ1 is an automotive-grade Power Management IC (PMIC) from Texas Instruments, designed for low-power FPGAs, microprocessors, and DSPs. It integrates two high-current synchronous step-down DC/DC converters and two linear regulators (LDOs). The device operates with an input voltage range of 2.8 V to 5.5 V. Each buck converter provides a maximum output current of 1.2 A, with adjustable output voltages ranging from 700 mV to 3.6 V. The unit features an I²C interface for configuration and monitoring. It is qualified under AEC-Q100 standards and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates dual high-current synchronous buck converters and dual linear regulators in a single package
• Supports digital control and monitoring via standard I²C interface
• Qualified for automotive applications meeting AEC-Q100 reliability standards

Applications

• Power supply solutions for Field Programmable Gate Arrays (FPGAs)
• Voltage regulation for microprocessors and digital signal processors (DSPs)
• Automotive electronic systems requiring multi-rail power management

Procurement Notes

Verify the specific suffix 'YZRR' against the official datasheet to confirm the package type (25-DSBGA) and tape-and-reel quantity. Confirm that the component meets the required AEC-Q100 grade for your specific automotive application environment. Check for any recent product lifecycle notices as some listings may indicate obsolete status.

Selection Notes

Select this component when designing systems that require multiple regulated rails from a single 2.8 V to 5.5 V source. It is suitable for applications needing precise digital control over voltage levels via I²C. Ensure the thermal design accommodates the power dissipation of the integrated buck and LDO sections within the specified operating temperature range.

Part Context

This part belongs to the LP8731-Q1 family of PMICs optimized for low-power processing units. It consolidates multiple power stages into one small footprint, reducing board space compared to discrete solutions. The integration simplifies the power tree design for complex digital logic devices in automotive environments.

Replacement Considerations

Check for direct pin-to-pin replacements within the LP8731 series or newer generations from Texas Instruments. Verify compatibility with existing I²C addresses and register maps if substituting with similar PMICs.