LM63635CAQDRRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM63635CAQDRRRQ1 is an automotive-qualified synchronous step-down DC/DC converter from Texas Instruments. It operates with an input voltage range of 3.5 V to 36 V and delivers a fixed output voltage of 3.3 V at up to 3.25 A. The device integrates a 12-WFDFN (WSON) package with exposed thermal pad for efficient heat dissipation. Key electrical specifications include a quiescent current of 23 uA, adjustable switching frequency between 250 kHz and 2.2 MHz, and operation across a junction temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in vehicle environments.
• Integrated synchronous rectification provides high efficiency across wide load and line conditions.
• Flexible switching frequency adjustment allows optimization for size and transient response requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• On-board infotainment systems requiring stable power rails.
• Instrument clusters and dashboard control modules.
• Body control modules (BCM) and gateway applications.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes against official Texas Instruments documentation to ensure correct output voltage and package variant. Confirm AEC-Q100 qualification status and RoHS compliance through manufacturer datasheets or authorized distributor certificates before integration into production designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required for automotive applications. Ensure the design accommodates the 12-WFDFN footprint and thermal management needs. Validate that the input voltage range covers the system's operational extremes and that the 3.25 A current capability meets peak load demands without exceeding thermal limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM63635-Q1 family of Simple Switcher converters designed for automotive use. It shares architectural similarities with other members like the LM63635CA3QDRRRQ1 but differs in fixed output voltage configuration. The family targets compact power solutions for space-constrained automotive electronics requiring high efficiency and wide input ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include LM63635CA3QDRRRQ1 for different fixed voltages. Cross-family replacements may require evaluation of pin compatibility and thermal characteristics. Verify functional equivalence through updated datasheets before substitution.