LM63635CC5QDRRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM63635CC5QDRRRQ1 is an automotive-grade synchronous step-down DC/DC converter from Texas Instruments. It operates with an input voltage range of 3.5 V to 36 V and provides a fixed positive output of 5 V at up to 3.25 A. The device utilizes a 12-WSON (3x3 mm) package with exposed pad for surface mount installation. It supports switching frequencies between 250 kHz and 2.2 MHz and features a typical quiescent current of 23 µA. The component is rated for junction temperatures from -40°C to +150°C and includes shutdown functionality.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology designed for rugged automotive environments
• Wide input voltage range supporting 3.5 V to 36 V sources
• Fixed 5 V output configuration with high current capability
• Compact 12-WSON package with thermally enhanced exposed pad

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment system power distribution
• Telematics control unit voltage regulation
• Body control module power supplies
• ADAS sensor interface power conditioning

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'CC5' confirms the fixed 5 V output variant, as other suffixes indicate adjustable or different fixed voltages. Ensure the 'Q1' designation matches automotive reliability requirements. Confirm the 'RRR' suffix corresponds to the correct reel packaging specification for your assembly line equipment. Cross-reference the 12-WSON footprint against your PCB design guidelines.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a stable 5 V rail is required from a wide automotive input range. The fixed output eliminates external resistor divider networks, simplifying design. Consider the 3.25 A current limit for load requirements. Evaluate thermal performance in the 12-WSON package based on expected ambient conditions and PCB copper area for heat dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM63635-Q1 family of automotive step-down converters. It shares core architecture with variants like LM63635CAQDRRRQ1 but differs in output configuration. The CC5 suffix specifically denotes the fixed 5 V output version, distinguishing it from adjustable or other fixed voltage options within the same series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM63635CAQDRRRQ1: Adjustable output variant; requires external feedback network. LM63635CC3QDRRRQ1: Fixed 3.3 V output variant. Verify pin compatibility and thermal characteristics before substitution.