LM63635CA5QDRRRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM63635CA5QDRRRQ1 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 output voltage of 5 V. The device supports a maximum output current of 3.25 A. Key electrical parameters include a quiescent current of 23 uA and an adjustable switching frequency ranging from 250 kHz to 2.2 MHz. It features a WSON-12 package, operates within a junction temperature range of -40°C to +150°C, and includes shutdown functionality.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency in a compact footprint
• Adjustable switching frequency allows optimization for size and performance
• Automotive qualification ensures reliability in harsh environments
• Low quiescent current extends battery life in standby modes

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 specific suffix 'CA5' confirms the fixed 5 V output configuration, as variants exist with different fixed voltages or adjustable outputs. Ensure the 'Q1' designation aligns with your project's AEC-Q100 requirements. Confirm the 'RRR' suffix matches the required tape and reel packaging specifications for your assembly line equipment. Cross-reference the datasheet revision date to ensure compatibility with your design constraints.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V rail is required from a 3.5 V to 36 V input source in automotive applications. The 3.25 A output capability suits moderate load demands. Consider the WSON-12 package if board space is limited compared to larger QFN packages. Evaluate the thermal performance at maximum load against your PCB copper area capabilities. Compare against the LM63635 family for alternative voltage options if 5 V is not strictly necessary.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM63635-Q1 family of simple switcher regulators designed for automotive use. It shares architectural similarities with other members like the LM63635CAQDRRRQ1 but differs in its fixed output voltage setting. The family emphasizes ease of design-in with minimal external components while maintaining robust protection features typical of TI's automotive power management portfolio.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include LM63635CA3QDRRRQ1 (3.3 V output) or LM63635CAQDRRRQ1 (adjustable output), provided the voltage requirement can be adapted. For higher current needs, consider the LM53635 series. Verify pinout compatibility before substitution to avoid PCB redesign.