LP87332DRHDRQ1

Overview

The LP87332DRHDRQ1 is an automotive-grade PMIC featuring two high-current buck converters and two low-dropout linear regulators. It operates within a 2.5V to 5.5V supply range and supports switching frequencies up to 2MHz. The device provides four independent outputs: two buck channels delivering up to 3A each with adjustable voltages from 0.7V to 3.36V, and two LDO channels providing up to 300mA with output voltages ranging from 0.8V to 3.3V. Packaged in a 28-VQFN (5x5mm) with wettable flanks for inspection, it meets AEC-Q100 standards and functions reliably between -40°C and +125°C.

Feature Summary

• Integrates dual high-current synchronous buck converters and dual low-noise LDOs in a single compact package.
• Supports high-frequency operation at 2MHz to minimize external passive component size.
• Features wettable flank technology on the 28-VQFN package to enable automated optical inspection of solder joints.
• Designed specifically for automotive applications with robust thermal performance and reliability.

Applications

• Infotainment systems requiring multiple stable voltage rails
• Digital cockpit modules needing high-current processing power
• Telematics control units demanding compact power solutions
• ADAS sensor interfaces utilizing mixed-signal regulation

Procurement Notes

Verify the complete part number including suffixes such as RHDT or RHDR to ensure correct packaging and temperature grade. Confirm that the specific revision matches the design requirements, as manufacturing sites may vary. Check for moisture sensitivity level compliance during storage and handling. Ensure the order quantity aligns with the standard reel or cut-tape availability to avoid fulfillment delays.

Selection Notes

Select this component when designing automotive electronics requiring four distinct regulated outputs from a single IC. It is suitable for systems where board space is limited but high current delivery is necessary for processors or sensors. Consider the 2MHz switching frequency if minimizing inductor size is a priority. Verify that the input voltage range of 2.5V to 5.5V matches the vehicle's power bus characteristics.

Part Context

This device belongs to the LP8733x-Q1 family of multi-output power management integrated circuits. It shares architectural similarities with other members like the LP87330 and LP87336, differing primarily in output current capabilities and topology combinations. The family is designed to simplify power tree designs in complex automotive electronic control units by consolidating multiple regulator stages.

Replacement Considerations

LP873300RHDTQ1

FAQ

What is the maximum output current for the buck converters?

Each of the two buck converters can deliver up to 3A of output current.

Does the package support automated optical inspection?

Yes, the 28-VQFN package features wettable flanks, allowing for visual inspection of the bottom solder joints.

What is the operating temperature range?

The device is rated for an ambient operating temperature range of -40°C to +125°C.