LMR36015SC3QRNXRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR36015SC3QRNXRQ1 is a synchronous step-down converter from Texas Instruments, designed for automotive and industrial environments. It operates with an input voltage range of 4.2 V to 60 V and delivers a fixed output of 3.3 V at up to 1.5 A. The device features a 2.1 MHz switching frequency and a low quiescent current of 24 uA. It is housed in a compact VQFN-HR-12 package and supports an operating temperature range from -40°C to +125°C. The component holds AEC-Q100 qualification and is functional safety capable.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous buck topology for high efficiency in ultra-small form factor
• Wide input voltage capability supporting 4.2 V to 60 V sources
• Automotive-grade reliability with AEC-Q100 qualification and extended temperature range
• Functional safety design capabilities supported by dedicated documentation

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Industrial control modules
• Point-of-load regulation in high-voltage bus architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix SC3 confirms the fixed 3.3 V output configuration, as other variants may offer adjustable or different fixed voltages. Ensure the QRNXRQ1 designation matches the required tape-and-reel packaging and automotive grade specifications. Cross-reference the manufacturer datasheet to confirm pinout compatibility and thermal performance requirements for the target PCB layout.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V rail is required from a wide input range up to 60 V. The 1.5 A output current suits moderate load applications. The 2.1 MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the VQFN-HR-12 package size constraints and thermal dissipation needs for the specific enclosure environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR36015-Q1 family of ultra-small synchronous step-down converters. It shares the core architecture with other members like the LMR36015FSCQRNXTQ1 but differs in output configuration. While some family members offer adjustable outputs, this specific variant provides a fixed 3.3 V output, simplifying design implementation for standard logic supply rails.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR36015FSCQRNXTQ1 offers similar electrical characteristics but typically features an adjustable output voltage rather than a fixed 3.3 V. Verify that the fixed output requirement can be met by the alternative's adjustability range or if a fixed-output variant exists within the same package.