LM536003QDSXRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM536003QDSXRQ1 is an automotive-grade synchronous buck converter from the LM53600-Q1 series. It operates with an input voltage range of 3.5 V to 36 V and provides a fixed 3.3 V output at up to 3 A. The device features a high switching frequency of 2.1 MHz, enabling compact passive component selection. It includes integrated protection mechanisms such as overcurrent protection and thermal shutdown. Qualified under AEC-Q100 standards, it supports junction temperatures up to +150°C and is housed in a compact WSON-10 package for surface-mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for enhanced efficiency
• Integrated high-side and low-side N-channel MOSFETs
• Fixed internal feedback network for simplified design
• Automotive reliability qualification

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body control modules
• Instrument clusters

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'QDSXRQ1' against the manufacturer's official datasheet to confirm the exact output voltage, current rating, and package variant. Ensure the procurement channel provides valid AEC-Q100 certification documentation. Cross-reference the part number with the latest Texas Instruments product status to confirm availability and lifecycle stage before finalizing orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing power stages for automotive environments requiring high input voltage tolerance up to 36 V. The fixed 3.3 V output eliminates external resistor networks, reducing board space. Consider the 2.1 MHz switching frequency for minimizing inductor size compared to lower-frequency alternatives. Ensure the application load does not exceed the 3 A continuous current limit within the specified thermal envelope.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5360x-Q1 family of wide-input voltage synchronous buck converters. These devices are engineered specifically for automotive electronics, offering robust performance across extreme temperature ranges. The family shares common architectural features but varies in output current capabilities and fixed voltage options to suit diverse system requirements.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include other members of the LM5360x-Q1 series, such as LM53601 or LM53602 variants, provided they match the required output current and voltage specifications. Verify pin-to-pin compatibility and thermal characteristics before substitution.