LP5912Q1.8DRVTQ1

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

The LP5912Q1.8DRVTQ1 is a Texas Instruments automotive-grade linear voltage regulator featuring a fixed 1.8V output and 500mA maximum current capability. It operates within an input voltage range of up to 6.5V, utilizing a 6-WSON (2x2) surface-mount package. The device maintains a typical quiescent current of 55 µA and supports operation across a junction temperature range of -40°C to 125°C. Key electrical specifications include a maximum dropout voltage of 0.25V at full load and power supply rejection ratios ranging from 80dB at 100Hz to 40dB at 100kHz.

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

• Integrated enable pin, power good indicator, and soft-start functionality for controlled system startup and monitoring.
• Comprehensive protection mechanisms including thermal shutdown, reverse polarity protection, and short-circuit current limiting.
• Designed for automotive environments with AEC-Q100 qualification and robust noise performance suitable for sensitive analog circuits.

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

• Automotive infotainment systems requiring stable low-noise power rails.
• Sensor interface circuits in vehicle control modules.
• Body control electronics and lighting management systems.
• Telematics units and onboard communication networks.

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

Verify the specific suffix DRVTQ1 to confirm the 1.8V fixed output and WSON-6 packaging configuration. Cross-reference the manufacturer part number against official Texas Instruments documentation to ensure authenticity. Confirm that the component meets AEC-Q100 standards if automotive reliability is required. Check for any end-of-life notices or production changes associated with this specific revision before finalizing procurement plans.

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

Select this component when a fixed 1.8V rail is needed for automotive applications with moderate current demands up to 500mA. It is suitable for designs prioritizing low static current consumption and high power supply rejection in noisy environments. Ensure the input voltage does not exceed 6.5V and that the PCB layout accommodates the 6-WSON footprint with adequate thermal dissipation for the expected operating conditions.

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

This device belongs to the LP5912-Q1 family of ultra-low-noise LDOs designed specifically for automotive use. The series offers various fixed output voltages while maintaining consistent performance characteristics such as low dropout voltage and high PSRR. The Q1 designation indicates compliance with automotive quality and reliability standards, distinguishing it from standard commercial grade counterparts in the same product line.

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

Consult the official LP5912-Q1 datasheet for verified alternative part numbers within the same family that offer different fixed output voltages or package options. Direct substitutes must match the 500mA current rating, 6.5V maximum input, and 6-WSON form factor to ensure compatibility without redesigning the printed circuit board.