AP7375Q-18WR-7

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

The AP7375Q-18WR-7 is a wide input voltage range, low quiescent current, low-dropout linear regulator (LDO) manufactured by Diodes Incorporated. It provides a fixed output voltage of 1.8V with a maximum load current of 300mA. The device operates within an input voltage range of 3V to 45V and features a typical quiescent current of 2.1µA. It includes an enable pin capable of handling up to 45V input. The component is housed in a SOT25 package with the WR code and offers high power supply rejection ratio of 85dB at 1kHz.

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

• Wide input voltage range supporting 3V to 45V operation
• Low quiescent current for extended battery life
• Integrated short-circuit and thermal shutdown protection
• Fast transient response against line and load changes

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 suffix 'WR' corresponds to the SOT25 package configuration required for your PCB layout. Confirm that the 1.8V fixed output aligns with system requirements. Ensure compliance with AEC-Q100 qualification standards if used in automotive applications requiring specific change control. Check datasheet for recommended input and output capacitor values to ensure stability.

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

Select this component when a wide input voltage range up to 45V is necessary alongside low static current consumption. The 1.8V output is suitable for powering sensitive digital logic or microcontrollers. Consider the SOT25 package size constraints and thermal dissipation capabilities under expected load conditions. Verify that the 300mA current limit meets peak load demands without triggering protection circuits.

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

This part belongs to the AP7375Q series of automotive-compliant ultra-low dropout regulators. The series is designed for applications requiring robust performance across varying input voltages and temperatures. It is manufactured in IATF 16949 certified facilities and is PPAP capable, making it suitable for strict automotive supply chain requirements.

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

AP7375Q-18W5-7: Identical electrical specifications but utilizes the W5 package variant of SOT25. Verify pinout compatibility before substitution.

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

What is the function of the EN pin on the AP7375Q-18WR-7?

The EN pin allows the user to enable or disable the LDO output. It can accept an input voltage of up to 45V.

Does the AP7375Q-18WR-7 include protection features?

Yes, it includes integrated short-circuit protection and thermal shutdown protection to prevent damage during overcurrent or excessive temperature conditions.