TPS65300QRHFRQ1

Overview

The TPS65300QRHFRQ1 is a Texas Instruments PMIC designed for automotive applications, featuring one switching regulator and three linear regulators. It operates with an input voltage range of 5.6V to 40V and supports transient loads up to 45V. The switching buck converter delivers a peak current of 1.2A with a frequency between 2MHz and 3MHz. The linear section includes one fixed 5V LDO, one adjustable 3.3V LDO controller, and one adjustable 1.234V LDO controller. It integrates voltage monitors for the main outputs and provides programmable power-on reset delays.

Feature Summary

• Integrates a high-side switch buck converter with a 1.2A peak current capability and integrated 45V power MOSFET.
• Includes three linear regulation channels: one fixed 5V output and two adjustable controllers for flexible voltage generation.
• Features built-in voltage monitoring for the switching regulator and key linear outputs to ensure system reliability.
• Supports external clock synchronization and offers programmable power-on reset delays with filter timers.

Applications

• Automotive infotainment systems requiring stable multi-rail power distribution
• Body control modules (BCM) needing robust voltage regulation under load transients
• Telematics units operating within harsh automotive electrical environments

Procurement Notes

Verify the specific suffix 'RHFR' confirms the VQFN package type and tape-and-reel quantity against the official datasheet. Ensure the Q1 designation aligns with your project's AEC-Q100 qualification requirements. Confirm that the thermal performance of the selected package meets your system's heat dissipation constraints before finalizing procurement.

Selection Notes

Select this component when a single-chip solution is required for automotive power management combining switching efficiency with linear precision. It is suitable for designs needing a 1.2A buck source alongside multiple low-noise or fixed-voltage rails. Consider the 24-pin VQFN package for space-constrained PCB layouts while ensuring adequate thermal relief is provided on the board.

Part Context

This device belongs to the TPS65300-Q1 family of automotive power management ICs. It is part of Texas Instruments' portfolio of integrated solutions designed to simplify power architecture in vehicles. The family typically combines switching and linear technologies to optimize efficiency and noise performance for sensitive automotive electronics.

Replacement Considerations

Check the TPS65300QPWPRQ1 for pin-compatible alternatives in HTSSOP packages. Verify functional equivalence regarding output currents and voltage ranges before substitution.