LM61435AANQRJRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM61435AANQRJRRQ1 is an automotive-grade, synchronous step-down DC-DC converter from Texas Instruments. It integrates high-side and low-side MOSFETs to deliver up to 3.5 A of output current. The device operates with an input voltage range of 3 V to 36 V and provides an adjustable output voltage between 1 V and 34.2 V. It supports switching frequencies from 200 kHz to 2.2 MHz and features a typical quiescent current of 600 nA. The component is housed in a 14-pin VQFN-HR package and is rated for operation between -40°C and +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side power MOSFETs for compact design
• Automotive qualification compliant with AEC-Q100 standards
• Low electromagnetic interference (EMI) performance capabilities
• Adjustable switching frequency for optimized efficiency

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Instrument clusters and body control modules
• Telematics units
• ADAS sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as 'RRQ1' to ensure correct packaging and automotive grade specification. Confirm that the ordering information matches the required tape-and-reel quantity. Cross-reference the datasheet revision date to ensure compatibility with latest design guidelines. Check for any specific handling instructions related to moisture sensitivity level indicated in the product data sheet.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an automotive-rated buck converter with integrated switches is required for space-constrained designs. It is suitable for applications needing input voltages up to 36 V and output currents around 3.5 A. Consider the thermal performance of the VQFN-HR package for your PCB layout. Ensure the desired switching frequency falls within the 200 kHz to 2.2 MHz range to meet EMI requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM614x0 family of automotive synchronous step-down converters. It shares architectural similarities with parts like the LMQ61460AFSQRJRRQ1 but offers lower current capability. The family is designed for robust performance in harsh automotive environments, featuring high efficiency and low standby current. It complements other PMIC solutions by providing a simple, single-output regulation stage.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the LMQ61460AFSQRJRRQ1 for higher current needs or the LM61440AANRJRR for non-automotive applications. Verify pinout compatibility and thermal characteristics before swapping. Ensure the replacement meets the same AEC-Q100 qualification if automotive reliability is required.