AP7315-15W5-7

Overview

The AP7315-15W5-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a nominal output voltage of 1.5V with a guaranteed maximum load current of 150mA. It operates within an input voltage range of 1.7V to 5.25V and features high power supply rejection ratio (PSRR) of 75dB at 1kHz and low output noise of 60µVrms from 10Hz to 100kHz. The device utilizes a CMOS process, includes an enable pin for shutdown control, and incorporates short-circuit protection. It is housed in a SOT25 package.

Feature Summary

• CMOS-based low dropout regulator architecture with integrated voltage reference and error amplifier
• High ripple rejection and low output noise characteristics suitable for sensitive RF applications
• Integrated enable input allowing precise on/off control and low standby current consumption
• Built-in short-circuit protection to clamp output current during fault conditions

Applications

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

Procurement Notes

Verify the specific ordering suffix W5 corresponds to the SOT25 package configuration required for your PCB layout. Confirm that the non-discharge variant matches your system's power-down requirements, as discharge versions exist under different part numbers. Ensure compliance with RoHS 3 standards if applicable to your manufacturing region. Validate component authenticity through authorized distribution channels.

Selection Notes

Select this component when a stable 1.5V rail is needed with minimal footprint in portable devices. The SOT25 package offers a balance between thermal performance and space efficiency. Consider the 150mA current limit against peak load demands. Verify input voltage stability remains above the dropout threshold across all operating temperatures and load conditions.

Part Context

This device belongs to the AP7315 family of low dropout regulators designed for handheld communication equipment. The series provides various fixed output voltages ranging from 1.1V to 3.3V. It is engineered for dense PCB layouts using small surface-mount packages including X2-DFN1010-4, SOT23, and SOT25.

Replacement Considerations

AP7315D-15W5-7 serves as a direct substitute if output discharge functionality is required instead of the non-discharge version provided by the standard AP7315 model.