LM53635AQRNLTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM53635AQRNLTQ1 is a synchronous step-down DC/DC converter from Texas Instruments, designed for automotive applications. It operates with an input voltage range of 3.9 V to 36 V and delivers up to 3.5 A of output current. The device features a fixed 5 V output and integrates a 2.1 MHz switching frequency. It utilizes a VQFN-HR-22 package and supports junction temperatures from -40°C to +150°C. Key electrical parameters include a quiescent current of 6 uA and an operating supply current of 18 uA. The component holds AEC-Q100 qualification.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous buck topology for high efficiency
• Automotive-grade reliability with extended temperature support
• Compact footprint utilizing wettable flank VQFN packaging

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and thermal characteristics. Ensure compatibility with AEC-Q100 requirements for your target application. Check for moisture sensitivity level (MSL) ratings prior to PCB assembly to prevent damage during reflow soldering processes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required at 3.5 A in automotive environments. The 2.1 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the VQFN-HR-22 package for thermal performance and space-constrained designs requiring wettable flank visibility.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM53635-Q1 family of high-efficiency synchronous buck converters. It shares the same core architecture as variants like LM536353QRNLTQ1 but differs in fixed output voltage settings. The family targets robust power management solutions for demanding automotive electronic loads.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM536353QRNLTQ1 offers similar electrical specifications but provides a fixed 3.3 V output instead of 5 V. Verify that the load requirements align with the available fixed voltage options within the series before substituting.