L5150GJ

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

The L5150GJ is an automotive-grade low dropout linear regulator featuring integrated microprocessor control functions, including power-on reset, low-voltage reset, and early warning circuits. It provides a fixed 5 V output with ±2% accuracy over a wide temperature range. The device operates within a DC supply voltage range of 5.6 V to 40 V and delivers up to 150 mA of output current. Quiescent current consumption is typically 55 µA in enabled mode and drops to 5 µA when disabled. It includes thermal shutdown, short-circuit protection, and an enable input for power management.

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

• Integrated microprocessor supervision functions including power-on reset, low-voltage reset, and early warning monitoring
• Automotive qualification compliant with AEC-Q100 standards for reliability
• Adjustable reset threshold allowing configuration down to 3.5 V via external voltage divider
• Stable operation with only low-value ceramic capacitors required on the output

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

• Microprocessor power supply systems requiring supervision
• Automotive electronic control units (ECUs)
• Industrial control systems needing reliable voltage regulation
• Battery-powered devices requiring low quiescent current modes

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

Verify the specific suffix and package variant against the manufacturer's official datasheet to ensure compatibility with your design requirements. Confirm that the component meets the necessary automotive qualification standards if used in safety-critical applications. Check the latest documentation for any updates regarding pinout or electrical characteristics before finalizing procurement.

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

Select this regulator when a fixed 5 V output with high accuracy is required alongside integrated system supervision features. It is suitable for designs needing low standby current consumption and robust protection against thermal overload. Ensure the input voltage remains within the specified 5.6 V to 40 V range and that the load current does not exceed the internal limit.

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

This component belongs to STMicroelectronics' portfolio of low dropout linear regulators designed for automotive and industrial environments. It combines standard voltage regulation capabilities with advanced monitoring functions, reducing the need for external supervisor ICs. The series is engineered to provide stable performance across wide variations in line and load conditions.

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

Consult official substitution lists for compatible alternatives. Verify that any replacement part matches the 5 V output, 150 mA current capability, and SOIC-12 package dimensions. Ensure equivalent or superior automotive qualification and functional safety ratings are maintained.