AP7315Q-33W5-7

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

The AP7315Q-33W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed 3.3V output with a maximum current of 150mA and operates within a 1.7V to 5.25V input range. The device features ±1% output voltage accuracy, 75dB ripple rejection at 1kHz, and 60µVrms output noise from 10Hz to 100kHz. Quiescent current is as low as 35µA. It supports -40°C to +125°C operation, utilizes SOT25 packaging, and lacks an internal output discharge function.

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

• Automotive compliant with AEC-Q100 Grade 1 qualification and PPAP capability for specific change control requirements.
• High power supply rejection ratio and low output noise suitable for sensitive automotive RF and infotainment applications.
• Integrated enable pin allows precise on/off control, supporting shutdown mode with minimal standby current.

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 part number suffix W5 corresponds to the SOT25 package and -7 indicates tape and reel packaging. Confirm that the Q suffix denotes automotive compliance and AEC-Q100 Grade 1 qualification. Ensure the absence of the D suffix confirms the non-discharge variant selection. Validate RoHS compliance and halogen-free status against project specifications.

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

Select this component when designing for noise-sensitive automotive environments requiring stable 3.3V regulation. The wide input voltage range accommodates varying battery conditions. The low quiescent current aids in extending battery life. Verify thermal dissipation requirements under maximum load and ambient temperature conditions to ensure junction temperatures remain within safe operating limits.

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

This device belongs to the AP7315Q series of low dropout regulators designed for automotive applications. It shares electrical characteristics with commercial variants but meets stricter automotive quality standards. The series offers multiple fixed output voltages and packages, providing flexibility for diverse power management needs in vehicle electronics.

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

The AP7315DQ-33W5-7 serves as a functional substitute if an internal output discharge feature is required instead of the non-discharge configuration. Both parts share identical electrical performance and automotive qualifications.

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

Does the AP7315Q-33W5-7 include an internal output discharge resistor?

No, the AP7315Q designation indicates a non-discharge version. The AP7315DQ variant includes an internal auto-discharge function.

What is the maximum input voltage for this regulator?

The recommended operating input voltage range extends up to 5.25V, with an absolute maximum rating of 6.0V.