AP7315DQ-30W5-7

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

The AP7315DQ-30W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed 3.0V output with a maximum current of 150mA and operates within an input voltage range of 1.7V to 5.25V. The device features high ripple rejection of 75dB at 1kHz, low output noise of 60µVrms from 10Hz to 100kHz, and a quiescent current as low as 35µA. It includes an enable pin for shutdown control and an integrated auto-discharge function. Qualified to AEC-Q100 Grade 1 standards, it supports PPAP documentation and operates across a temperature range of -40°C to +125°C.

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

• Automotive compliant with AEC-Q100 Grade 1 qualification and PPAP support
• Integrated N-channel auto-discharge function for rapid output voltage decay upon shutdown
• High power supply ripple rejection and ultra-low output noise suitable for sensitive subsystems
• CMOS-based architecture providing low quiescent current and precise output voltage accuracy

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

• Infotainment power supplies
• Automotive RF supply circuits
• Camera modules in ADAS systems
• Automotive point-of-load (POL) regulation
• Wireless communication subsystems

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

Verify the specific suffix W5 corresponds to the SOT25 package and -7 indicates tape and reel packaging. Confirm that the DQ designation ensures the presence of the output discharge feature required for your system's power-down sequence. Ensure the component meets AEC-Q100 Grade 1 requirements if used in safety-critical automotive environments. Validate that the 3.0V fixed output aligns with the target load specifications before finalizing procurement.

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

Select this component when designing for noise-sensitive automotive applications requiring strict power management. The integrated discharge function distinguishes it from standard variants, making it ideal for systems needing fast output voltage collapse. Consider the 150mA current limit and 1.7V minimum input voltage to ensure compatibility with battery-operated or wide-input voltage sources. Verify thermal dissipation capabilities within the SOT25 package for the intended ambient operating conditions.

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

This part belongs to the AP7315Q family of low dropout regulators designed specifically for automotive compliance. Unlike commercial versions, these devices are manufactured in IATF 16949 certified facilities and support full PPAP documentation. The series offers various fixed output voltages and packages, with the DQ variant uniquely featuring built-in output discharge for enhanced system safety during disable states.

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

The AP7315Q-30W5-7 serves as a direct non-discharge functional substitute within the same package and electrical specification profile. Both parts share identical electrical characteristics and automotive qualifications, differing only in the presence of the internal output discharge circuitry.