AP7375Q-33SP-13

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

The AP7375Q-33SP-13 is a fixed-output automotive compliant ultra-low-dropout linear regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.3V with a maximum load current capability of 300mA. The device operates within a wide input voltage range from 3V to 45V and features an enable pin that accepts 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 short-circuit and thermal shutdown protection functions.

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

• Wide input voltage range supporting up to 45V for robust operation in automotive environments
• Integrated enable pin allowing precise control over the LDO output state
• High output voltage accuracy ensuring stable regulated power delivery
• Built-in thermal shutdown and short-circuit protection for enhanced reliability

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

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

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

Verify the specific package type matches the design requirements, as this part number corresponds to the SO-8EP variant. Confirm compliance with AEC-Q100 standards and PPAP capabilities if required for the target automotive application. Ensure the ordering suffix aligns with the desired tape and reel quantity specifications provided in the manufacturer's documentation.

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 quiescent current consumption. The SO-8EP package offers improved thermal dissipation compared to smaller footprints. Consider the 3.3V fixed output requirement and the need for an enable function to manage system power states effectively during startup and shutdown sequences.

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

This device belongs to the AP7375Q series of automotive-grade ultra-low-dropout regulators. The series includes multiple output voltage options and package variants such as SOT89, SOT25, and U-DFN2020-6. The 'Q' designation indicates qualification for automotive applications requiring specific change control protocols and manufacturing in IATF 16949 certified facilities.

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

Compatible substitutes within the same family include AP7375Q-30SP-13 for 3.0V output and AP7375Q-50SP-13 for 5.0V output, maintaining identical package and feature sets. Non-automotive equivalents like the AP7375-33SP-13 share similar electrical parameters but lack AEC-Q100 qualification.