TPS65321QPWPRQ1

Overview

The TPS65321QPWPRQ1 is an automotive-grade PMIC featuring a dual-output topology with one buck converter and one LDO. It operates within a 3V to 36V supply range and supports switching frequencies from 100kHz to 2.5MHz. The buck output delivers up to 3.2A at voltages between 1.1V and 20V, while the LDO provides up to 280mA at 1.1V to 5.5V. Housed in a 14-HTSSOP package, it functions reliably from -40°C to 125°C and holds AEC-Q100 qualification.

Feature Summary

• Integrates a high-current buck converter and a low-dropout linear regulator for versatile power distribution.
• Features adjustable switching frequency to optimize efficiency and external component size.
• Includes integrated voltage monitoring capabilities for system protection.

Applications

• Automotive infotainment systems
• Digital instrument clusters
• Telematics control units

Procurement Notes

Verify the specific suffix 'QPWPRQ1' against the manufacturer's official datasheet to confirm pinout, thermal characteristics, and RoHS compliance status. Ensure the ordering part number matches the required tape-and-reel quantity and package variant. Cross-reference the AEC-Q100 grade requirements with your vehicle's reliability standards before finalizing procurement.

Selection Notes

Select this component when a compact solution is needed for automotive applications requiring both switched and linear regulation. The wide input voltage range accommodates various automotive bus conditions. Consider the 14-pin form factor for space-constrained PCB layouts where separate regulators would exceed available area.

Part Context

This device belongs to the TPS65321-Q1 family of automotive power management ICs. It is designed to replace discrete regulator solutions by integrating multiple power stages into a single chip. The Q1 designation indicates compliance with automotive quality and reliability standards set by the Automotive Electronics Council.

Replacement Considerations

The TPS65320QPWPRQ1 is a documented alternative within the same product family offering similar dual-regulator functionality. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.