AP7315DQ-12W5-7

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

The AP7315DQ-12W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed 1.2V output with a maximum current of 150mA and operates within a 1.7V to 5.25V input voltage range. The device features a quiescent current as low as 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. It includes an enable pin for power 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

• Integrated auto-discharge function that pulls the output to ground when disabled
• Automotive compliance supporting PPAP documentation and AEC-Q100 Grade 1 qualification
• Low output noise and high ripple rejection suitable for sensitive RF applications

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

• Infotainment power supplies
• Automotive RF supply
• Cameras
• Automotive POL in ADAS
• Automotive wireless communication

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

Verify the specific ordering suffix matches the required package and discharge configuration. Confirm that the component meets the necessary automotive quality standards for your application. Ensure compatibility with your PCB layout requirements regarding thermal dissipation and capacitor placement. Check for any recent product change notifications or updates to the datasheet before finalizing procurement.

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

Select this component for designs requiring a fixed 1.2V rail with low noise characteristics. The integrated discharge feature is beneficial for systems needing rapid output voltage decay upon shutdown. Consider the SOT25 package size constraints and ensure adequate thermal management for the expected load conditions. Verify that the input voltage remains within the specified operating range under all transient conditions.

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

This part belongs to the AP7315Q family of low dropout regulators designed for automotive environments. It shares electrical specifications with the non-discharge variant but adds an internal resistor network to actively pull down the output voltage when the enable pin is low. This distinguishes it from standard LDOs that rely on external components for output discharge.

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

AP7315Q-12W5-7

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

What is the difference between AP7315Q and AP7315DQ?

The AP7315DQ includes an integrated auto-discharge function that pulls the output voltage to ground when the device is disabled. The AP7315Q does not have this feature.

Is the AP7315DQ-12W5-7 qualified for automotive use?

Yes, it is qualified to AEC-Q100 Grade 1 standards and is classified as Automotive Compliant, supporting PPAP documentation.