LM61495Q3RPHRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM61495Q3RPHRQ1 is an automotive-grade synchronous buck converter from Texas Instruments, designed for high-efficiency power management in vehicle systems. It delivers a fixed 3.3 V output at up to 10 A with an input voltage range of 3 V to 36 V. Operating within a junction temperature range of -40°C to +150°C, the device features a 400 kHz switching frequency and ultra-low quiescent current of 10 µA. Packaged in a compact 16-pin VQFN-HR (4.5x3.5 mm) surface-mount footprint, it supports AEC-Q100 qualification for robust automotive reliability.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-qualified synchronous step-down topology optimized for vehicle electrical architectures
• Integrated shutdown control for system power management and standby current reduction
• Compact VQFN-HR package with wettable flanks for enhanced solder joint inspection

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment and display power distribution
• ADAS sensor and processing unit power supplies
• Body control module (BCM) voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'Q3' confirms the fixed 3.3 V output variant. Confirm 'RPHR' indicates the 16-VQFN-HR package with wettable flanks. Ensure AEC-Q100 certification status matches project requirements. Check moisture sensitivity level (MSL 2) for storage and reflow constraints. Validate that the specific revision aligns with the latest datasheet documentation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V rail is required for automotive loads up to 10 A. The 3–36 V input range suits direct battery connection or pre-regulated sources. Consider the 400 kHz frequency for balancing efficiency and passive size. The VQFN-HR package aids thermal performance and automated optical inspection compared to standard QFN variants.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM61495-Q1 family, which includes other output voltage options such as the LM61495Q5RPHRQ1 (5 V). This series targets high-current automotive applications requiring small solution size and high efficiency. The LM61495 complements TI’s broader portfolio of automotive DC/DC converters like the LMR614xx series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM61495Q5RPHRQ1 offers identical performance with a fixed 5 V output instead of 3.3 V.