LMR38010FSQDDARQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LMR38010FSQDDARQ1 is an automotive-grade synchronous buck converter from the SIMPLE SWITCHER family. It supports a wide input voltage range of 4.2 V to 80 V and delivers a continuous output current of 1 A. The device features a programmable switching frequency adjustable between 200 kHz and 2.2 MHz, with options for external clock synchronization and pseudo-random spread spectrum to minimize electromagnetic interference. It operates within a junction temperature range of -40°C to +150°C and includes integrated protection mechanisms such as cycle-by-cycle current limiting, hiccup mode short-circuit protection, and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust reliability in vehicle environments
• Integrated synchronous rectification and internal compensation to simplify design and reduce component count
• Configurable switching frequency allows optimization for either high efficiency or compact solution size
• Built-in power good flag with filtering and delay provides accurate system status indication without external monitors

Voltage Regulators - DC DC Switching Regulators Applications

• Multi-rail power distribution systems in automotive infotainment units
• Power management for advanced driver assistance systems (ADAS) controllers
• Industrial control systems requiring wide input voltage tolerance
• Motorized home entertainment (MHEV) subsystems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix matches the required package type and tape-and-reel specifications. Confirm the device meets the necessary AEC-Q100 grade requirements for your target automotive application. Ensure compatibility with your PCB footprint for the SO-PowerPAD-8 package. Cross-reference the datasheet revision to confirm pinout and electrical characteristics align with your design specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems that require high input voltage tolerance up to 80 V combined with low quiescent current. It is suitable for applications needing flexible switching frequency configuration to avoid noise-sensitive bands. Consider this part for designs prioritizing reduced electromagnetic interference through spread spectrum capabilities. It is ideal for space-constrained automotive layouts due to its integrated protection and minimal external component requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMR38010 series of synchronous buck converters designed by Texas Instruments. The series is engineered to handle wide input voltage ranges while minimizing external surge suppression components. The Q1 suffix indicates automotive qualification, distinguishing it from commercial variants. It shares architectural similarities with other SIMPLE SWITCHER devices but offers specific enhancements for automotive durability and EMI performance.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR38010FSDDAR: Commercial grade version lacking automotive qualification; verify if AEC-Q100 compliance is mandatory for your application.