AP7375Q-33Y-13

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

The AP7375Q-33Y-13 is a fixed-output automotive compliant ultra-low-dropout (ULDO) linear regulator manufactured by Diodes Incorporated. It provides a nominal 3.3V output with a maximum load current of 300mA and operates within an input voltage range of 3V to 45V. The device features a low quiescent current of 2.1µA typical, high power supply rejection ratio of 85dB at 1kHz, and ±2% output voltage accuracy. Packaged in SOT-89-3, it includes an enable pin, thermal shutdown, and short-circuit protection.

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

• Includes an enable pin for controlling the LDO output state
• Provides fast response to line voltage and load current transients without overshoot
• Features integrated thermal shutdown and short-circuit protection mechanisms

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 that the specific part number suffix matches the required package type and tape-and-reel quantity. Confirm AEC-Q100 qualification status and PPAP capability requirements are met for the intended automotive application. Ensure compatibility with IATF 16949 certified manufacturing standards during procurement.

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

Select this component when a wide input voltage range up to 45V is required alongside a fixed 3.3V output. Consider the SOT-89 package for its thermal dissipation characteristics relative to available PCB space. Evaluate the need for the enable pin functionality and ensure the 300mA load current meets system demands under varying temperature conditions.

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

This device belongs to the AP7375Q series of automotive-grade ULDO regulators. The series offers multiple fixed output voltages including 1.8V, 3.0V, 3.3V, and 5.0V. It is designed for applications requiring specific change control and is manufactured in IATF 16949 certified facilities.

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

AP7375Q-33SP-13

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

What is the function of the EN pin on the AP7375Q?

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 provide protection against overcurrent conditions?

Yes, the device features integrated short-circuit protection and current-limit protection to prevent damage during overcurrent events.