AP7315D-295FS4-7B

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

The AP7315D-295FS4-7B is a low dropout regulator manufactured by Diodes Incorporated, featuring an integrated auto-discharge circuit. It provides a fixed output voltage of 2.95V with ±1% accuracy and supports up to 150mA of guaranteed output current. The device operates within a wide input voltage range from 1.7V to 5.25V. Key electrical characteristics include a ripple rejection ratio of 75dB at 1kHz and a low output noise of 60µVrms across the 10Hz to 100kHz bandwidth. Quiescent current is specified as low as 35µA.

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

• Integrated N-channel auto-discharge resistor activates when the enable pin is pulled low to rapidly discharge output capacitors.
• CMOS-based architecture ensures high output voltage accuracy and low on-resistance for efficient power management.
• Includes built-in short-circuit protection that clamps output current during fault conditions to prevent thermal damage.

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

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

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

Verify the specific ordering suffix FS4 corresponds to the X2-DFN1010-4 package configuration required for your PCB layout. Confirm the 'D' designation indicates the inclusion of the internal auto-discharge feature, which distinguishes this variant from non-discharge versions. Ensure compatibility with RoHS and halogen-free manufacturing standards before finalizing procurement orders.

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

Select this component when rapid output voltage decay is necessary upon shutdown, as provided by the internal discharge path. The 2.95V fixed output is suitable for powering 3.0V nominal logic or RF subsystems directly from lithium-ion sources. Verify that the 150mA current capability meets peak load requirements while maintaining stability with appropriate ceramic output capacitors.

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

This part belongs to the AP7315 series of low dropout regulators designed for portable handheld communication equipment. The series utilizes a CMOS process to achieve low quiescent current and high power supply rejection ratios. The AP7315D variant specifically incorporates an auto-discharge function, differentiating it from standard AP7315 models that lack this feature.

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

AP7315-295FS4-7B serves as a direct substitute if the auto-discharge functionality is not required in the application design.