LM536003QDSXTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM536003QDSXTQ1 is an automotive-grade synchronous buck converter from Texas Instruments. It operates with an input voltage range of 3.5 V to 36 V and delivers a fixed 3.3 V output at up to 650 mA. The device integrates internal power switches and features a 2.1 MHz switching frequency. It includes protection mechanisms such as overcurrent protection, thermal shutdown, and soft-start. The component is qualified to AEC-Q100 standards and operates within a junction temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency
• Fixed 3.3 V output configuration
• Automotive qualification compliant with AEC-Q100
• Built-in thermal and current protection

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Body control modules
• Telematics units
• Sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix QDSXTQ1 against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required automotive grade and output voltage. Cross-reference the manufacturer's latest documentation for any pinout or functional updates before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V rail is required for automotive applications with input voltages up to 36 V. The 650 mA output current capability suits low-power logic and peripheral circuits. Consider the HTSSOP-16 or WSON package availability based on PCB space constraints and thermal requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM53600-Q1 family of synchronous step-down converters designed for automotive environments. It shares architectural similarities with other members like the LM53601 and LM53602 but differs in output voltage and current ratings. The family emphasizes compact design and robust performance under varying automotive electrical conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM53600NQDSXTQ1 offers a similar form factor with different output characteristics. LM53601AQDSXTQ1 provides adjustable output options within the same package family. Verify pin compatibility and thermal performance when substituting.