AP7315DQ-15W5-7

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

The AP7315DQ-15W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed 1.5V output with a maximum current of 150mA. The device operates within a 1.7V to 5.25V input voltage range and supports junction temperatures from -40°C to +125°C. Key electrical characteristics include ±1% output voltage accuracy, 75dB ripple rejection at 1kHz, and 60µVrms output noise. It features an enable pin for shutdown control and includes an integrated auto-discharge function.

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
• High power supply ripple rejection of 75dB at 1kHz frequency
• Low output noise performance of 60µVrms across the 10Hz to 100kHz bandwidth

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

• Infotainment power supplies
• Automotive RF supply circuits
• Camera module power regulation
• Point-of-load (POL) converters in ADAS systems
• Automotive wireless communication modules

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

Verify that the specific part number suffix matches the required package type and output discharge configuration. Confirm compliance requirements such as RoHS and halogen-free status align with project specifications. Ensure the ordering quantity meets the manufacturer's standard tape and reel packaging constraints. Validate that the intended application environment falls within the specified operating temperature and voltage limits defined in the datasheet.

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

Select this component when high PSRR and low noise are critical for sensitive automotive loads. The integrated discharge feature distinguishes it from non-discharge variants, making it suitable for applications requiring fast output voltage collapse upon shutdown. Verify that the 150mA load requirement does not exceed the guaranteed output current limit under all operating conditions and thermal scenarios.

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

This device belongs to the AP7315Q series of low dropout regulators designed specifically for automotive environments. It utilizes a CMOS process to achieve low quiescent current and high efficiency. The series offers various fixed output voltages and packages, with the DQ variant specifically denoting the inclusion of the output discharge circuitry for enhanced system safety and power management.

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

The AP7315Q-15W5-7 serves as a direct substitute if the output discharge function is not required in the design. Both parts share identical electrical performance and pinouts but differ only in the internal discharge mechanism.