AP7315-23FS4-7B

Overview

The AP7315-23FS4-7B is a low dropout regulator manufactured by Diodes Incorporated, featuring a fixed 2.3V output voltage and housed in an X2-DFN1010-4 package. It operates within a wide input voltage range of 1.7V to 5.25V and guarantees an output current of 150mA. The device provides high output voltage accuracy with a tolerance of ±1% at room temperature. It incorporates a non-discharge architecture, ensuring the output remains stable when disabled. Key electrical characteristics include a ripple rejection ratio of 75dB at 1kHz and a low output noise of 60µVrms from 10Hz to 100kHz.

Feature Summary

• Integrated enable pin for precise power management control
• High ripple rejection capability suitable for sensitive RF applications
• Low output noise design optimized for portable media devices
• Built-in short circuit protection to prevent thermal damage

Applications

• Smartphones and tablet devices
• RF supply circuits
• Cameras
• Portable video players
• Wireless communication equipment

Procurement Notes

Verify the specific ordering suffix FS4-7B to confirm the X2-DFN1010-4 package type and tape-and-reel packaging quantity. Ensure the part number matches the required 2.3V fixed output voltage. Confirm compliance with RoHS directives and halogen-free requirements before finalizing procurement specifications.

Selection Notes

Select this component for designs requiring a compact footprint and low quiescent current. The non-discharge feature distinguishes it from variants ending in 'D', making it suitable where output hold-up is necessary. Verify that the input voltage range accommodates the source supply under all operating conditions.

Part Context

This part belongs to the AP7315 family of low dropout regulators designed for handheld communication equipment. It utilizes a CMOS process to achieve low on-resistance and high power supply rejection ratios. The series offers various fixed output voltages and packages to support dense PCB layouts in modern consumer electronics.

Replacement Considerations

AP7315-23FS4-7D serves as a direct functional substitute if an auto-discharge feature is acceptable instead of the non-discharge configuration.