AP7368D-10RS4-7

Special Purpose Regulators Overview

The AP7368D-10RS4-7 is a low-noise Low Dropout (LDO) voltage regulator manufactured by Diodes Incorporated. It provides a fixed output voltage of 1.0V with a maximum output current capability of 1A. The device features an input voltage range from 1.7V to 5.5V and delivers high Power Supply Rejection Ratio (PSRR) of 80 dB at 1 kHz for outputs ≥1.8V, though specific PSRR for the 1.0V variant may vary per datasheet constraints. It operates within a temperature range of -40°C to +85°C. The component is housed in an X1-DFN1612-8 (Type B) package with an exposed thermal pad, measuring 1.2mm x 1.6mm, designed for surface mount applications.

Special Purpose Regulators Feature Summary

• High power supply rejection ratio (PSRR) effectively suppresses line-borne noise in audio, video, and RF subsystems
• Ultra-low dropout voltage maximizes available power supply headroom, particularly beneficial in battery-powered devices
• Built-in active output discharge circuit ensures known system state upon startup when enable pin is deasserted
• Compact X1-DFN1612-8 package with exposed pad supports high power density point-of-load applications

Special Purpose Regulators Applications

• Camera modules requiring low-noise power rails
• RF power distribution networks
• Wireless adapters and connectivity devices
• Smartphones and tablets
• Portable media players

Special Purpose Regulators Procurement Notes

Verify that the specific part number AP7368D-10RS4-7 matches the required 1.0V fixed output configuration, as the AP7368 series includes multiple voltage options. Confirm the suffix RS4-7 corresponds to the correct X1-DFN1612-8 packaging and tape-and-reel quantity. Ensure compatibility with AEC-Q100 qualification requirements if automotive grade is needed, although standard industrial grade is typically specified for this series unless explicitly marked otherwise.

Special Purpose Regulators Selection Notes

Select this component when a fixed 1.0V output is required with high current capability up to 1A. Consider the ultra-low dropout characteristic for efficient operation near minimum input voltages. Evaluate the thermal performance given the small footprint and exposed pad design for heat dissipation. Verify that the 80 dB PSRR specification meets the noise sensitivity requirements of the downstream load, especially for sensitive analog or RF circuits.

Special Purpose Regulators Part Context

The AP7368 series consists of low-noise LDO regulators optimized for portable applications. It offers selectable output currents of 0.5A or 1A to balance performance and thermal management. The series includes built-in current foldback protection to mitigate thermal shutdown during short-circuit conditions. The high-level active enable pin controls both regulation and active output discharge, ensuring safe system initialization.

Special Purpose Regulators Replacement Considerations

Cross-reference with other AP7368 variants such as AP7368D-18RS4-7 or AP7368D-33RS4-7 if different output voltages are acceptable. Verify package compatibility with X1-DFN1612-8 footprints. Check thermal resistance values and PSRR specifications against original design requirements to ensure equivalent performance in the target application.