AP7375Q-18W5-7

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

The AP7375Q-18W5-7 is a fixed-output low-dropout linear regulator manufactured by Diodes Incorporated. It provides a regulated 1.8V output with a maximum load current of 300mA. The device supports a wide input voltage range from 3V to 45V and features a dedicated enable pin capable of handling up to 45V. Key electrical characteristics include a typical quiescent current of 2.1µA, high power supply rejection ratio of 85dB at 1kHz, and excellent line and load regulation. It incorporates integrated thermal shutdown and short-circuit protection functions.

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

• Wide input voltage range supporting operation from 3V to 45V
• Integrated enable pin for controlling output state
• High output voltage accuracy with ±2% tolerance
• Built-in thermal shutdown and short-circuit protection

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

• Powering MCUs and CAN/LIN transceivers
• Automotive head units
• EV and HEV battery management systems
• Body control modules
• Transmission control units (TCUs)

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

Verify the specific package code W5 corresponds to the SOT25 configuration required for your PCB layout. Confirm that the 1.8V fixed output aligns with your system's voltage requirements. Ensure the 300mA current capability meets peak load demands. Check for AEC-Q100 qualification if automotive compliance is mandatory. Validate component authenticity through authorized distribution channels.

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

Select this component when a stable 1.8V rail is needed from a high-voltage source up to 45V. The low quiescent current makes it suitable for battery-powered applications where standby consumption must be minimized. The SOT25 package offers a compact footprint for space-constrained designs. Consider the thermal resistance characteristics if operating near maximum load currents or high ambient temperatures.

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

This part belongs to the AP7375Q series of automotive-compliant ULDO regulators. The series includes variants with different fixed output voltages such as 3.0V, 3.3V, and 5.0V. Other package options in the family include SOT89, SO-8EP, and U-DFN2020-6. All variants share the same core specifications regarding input voltage range, output current, and protection features.

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

Direct substitutes within the same family include AP7375Q-30W5-7, AP7375Q-33W5-7, and AP7375Q-50W5-7, which offer different fixed output voltages but maintain identical pinouts and performance characteristics.