LM61480Q3RPHRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM61480Q3RPHRQ1 is an automotive-grade synchronous buck converter from Texas Instruments, designed for high-efficiency power conversion in demanding environments. It features a wide input voltage range of 3 V to 36 V and delivers a fixed 3.3 V output at up to 8 A. The device operates with a switching frequency between 200 kHz and 2.2 MHz and maintains a low quiescent current of 10 µA. It is housed in a compact 16-pin VQFN-HR package and supports junction temperatures from -40°C to +150°C, ensuring robust performance in automotive applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for enhanced efficiency across load ranges
• Wide input voltage tolerance suitable for noisy automotive bus conditions
• Configurable switching frequency allows optimization for size or noise
• Low standby current consumption extends battery life in sleep modes

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment system power distribution
• Telematics control unit voltage regulation
• ADAS sensor module power supply
• Body control module DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix RPHRQ1 matches the required tape-and-reel packaging configuration. Confirm that the Q3 designation aligns with the intended 3.3 V fixed output requirement. Ensure component authenticity through authorized channels to guarantee AEC-Q100 qualification status. Check for any recent product change notices affecting pinout or thermal characteristics before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V rail is required with up to 8 A continuous current capability. It is appropriate for designs needing a wide 36 V input tolerance and adjustable switching frequencies. Consider alternative models within the LM614xx family if different output voltages or current limits are necessary. Evaluate thermal management requirements based on the VQFN-HR package's heat dissipation capabilities under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM61495/LM61480/LM62460-Q1 family of automotive buck converters. These devices share similar architectural features but differ in current ratings and specific output configurations. The LM61480 variant specifically targets mid-range current applications requiring reliable operation in harsh automotive electrical environments while maintaining small footprint constraints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM61495Q3RPHRQ1 offers higher current capacity but shares the same package and pinout. LM61480Q5RPHRQ1 provides a fixed 5 V output instead of 3.3 V. Verify compatibility with existing PCB layouts and thermal designs when substituting these related parts.