TPS78550QKVURQ1

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The TPS78550QKVURQ1 is an automotive-grade low-dropout (LDO) voltage regulator from the Texas Instruments TPS785 series. It provides a fixed 5 V output with a maximum continuous current of 1 A. The device operates within an input voltage range of 1.7 V to 6 V and maintains a typical dropout voltage of 425 mV. It features a low quiescent current of 25 uA and offers high power supply rejection ratio (PSRR) of 60 dB. The regulator supports adjustable or fixed output configurations, with an adjustable range of 1.2 V to 5.5 V. It is housed in a TO-252-5 package and functions reliably across a temperature range of -40°C to +150°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Automotive qualification for reliable operation in vehicle environments
• High accuracy regulation with low dropout voltage characteristics
• Low quiescent current consumption for energy efficiency
• Robust thermal performance supporting extended industrial temperature ranges

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Automotive electronic control units requiring stable 5 V power rails
• Infotainment systems needing low-noise linear regulation
• Sensor interface circuits demanding high PSRR performance
• Body control modules operating under wide temperature conditions

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and humidity sensitivity level prior to assembly. Ensure storage conditions meet moisture protection requirements to prevent damage during soldering processes. Cross-reference datasheet specifications with design requirements to validate electrical parameters.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this LDO when automotive reliability and high accuracy are required. The fixed 5 V output suits standard logic levels. Consider the TO-252-5 package for surface mount applications. Evaluate thermal dissipation needs based on load current and ambient temperature. Verify input voltage compatibility within the 1.7 V to 6 V range.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the TPS785 family of high-accuracy LDO regulators designed for automotive applications. The series emphasizes low noise and high PSRR, making it suitable for sensitive analog and digital circuits. The Q suffix indicates automotive grade qualification, while KVU denotes the specific package type and pin configuration used in this variant.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Check TPS78501QKVURQ1 for similar automotive LDO specifications with potentially different dropout characteristics. Verify pin compatibility and thermal performance before substitution. Ensure replacement parts meet the same automotive quality standards and electrical tolerances.