LM536353QRNLTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM536353QRNLTQ1 is a synchronous step-down DC/DC converter from Texas Instruments, designed for automotive applications. It features a fixed 3.3 V output capable of delivering up to 3.5 A. The device operates with an input voltage range of 3.9 V to 36 V and utilizes a high switching frequency of 2.1 MHz. It is housed in a 22-VQFN-HR package and meets AEC-Q100 standards. The component supports a junction temperature range from -40°C to +150°C, ensuring reliability in harsh environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for efficient power conversion
• High switching frequency enables compact external component sizing
• Automotive-grade qualification ensures robust performance under varying thermal conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Instrument cluster power distribution
• ADAS sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes to ensure correct output voltage and package configuration. Confirm AEC-Q100 certification requirements match specific vehicle class standards. Check moisture sensitivity level handling procedures during assembly. Validate compatibility with existing PCB footprint and thermal design constraints before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this component when a fixed 3.3 V rail is required at 3.5 A in automotive contexts. The 2.1 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Ensure input voltage stays within the 3.9 V to 36 V window. Consider thermal dissipation needs given the high current capability and operating temperature range up to 150°C.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM53635-Q1 family of synchronous buck converters. It shares the same core architecture and packaging as other variants in the series, differing primarily in output voltage settings. The family is engineered for high-efficiency power management in demanding automotive electronic control units and peripheral devices.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM536355QRNLTQ1 offers identical specifications with a fixed 5 V output instead of 3.3 V.