AP7315D-25W5-7

Overview

The AP7315D-25W5-7 is a low dropout regulator manufactured by Diodes Incorporated, featuring an integrated resistor network for a fixed 2.5V output voltage. It operates within a wide input voltage range of 1.7V to 5.25V and guarantees a continuous output current of 150mA. The device utilizes a CMOS process and includes an enable pin for power control. It provides high ripple rejection of 75dB at 1kHz and maintains low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is as low as 35µA. The component incorporates auto-discharge functionality and is housed in a compact SOT25 package.

Feature Summary

• Integrated auto-discharge circuit that actively pulls the output voltage down when disabled
• High ripple rejection ratio ensuring effective suppression of input supply noise
• Low output noise characteristics suitable for sensitive analog and RF circuits
• Built-in enable pin allowing precise power management and system shutdown

Applications

• Smart Phone/PAD
• RF Supply
• Cameras
• Portable Videos
• Wireless Communication

Procurement Notes

Verify the specific suffix W5 confirms the SOT25 package configuration before ordering. Ensure the D suffix is required for the auto-discharge feature, as standard versions lack this function. Confirm the 25 designation matches the required 2.5V output level. Check RoHS compliance documentation if environmental regulations apply to your manufacturing process. Validate lead-free status against project specifications.

Selection Notes

Select this variant when a fixed 2.5V rail is needed with active discharge capabilities. The SOT25 package offers a balance between thermal performance and board space efficiency. Consider the 150mA current limit for powering moderate load applications. Verify input voltage stability remains above the dropout threshold under maximum load conditions. Evaluate PCB layout requirements for optimal transient response and noise reduction.

Part Context

This component belongs to the AP7315 series of low dropout regulators designed for portable electronics. The series emphasizes low power consumption and high accuracy. The AP7315D variant specifically adds an internal discharge path for the output capacitor, distinguishing it from non-discharge models. It targets applications requiring stable power delivery in compact form factors.

Replacement Considerations

AP7315-25W5-7 serves as a direct substitute if the auto-discharge feature is not required. Other AP7315 variants with different output voltages or packages may replace this part only if electrical parameters align with the design requirements. Cross-reference pinouts to ensure compatibility during physical replacement.