AP7361EA-SPR-13

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

The AP7361EA-SPR-13 is a 1A low dropout linear regulator with an enable function, manufactured by Diodes Incorporated. It operates within a 2.2V to 6.0V input voltage range and provides a fixed 2.5V output with ±1% accuracy. The device features a typical quiescent current of 68µA and a dropout voltage of 340mV at 1A load. It includes built-in current limiting (1.5A) and thermal shutdown protection. The component is housed in an SO-8EPR package and supports ambient temperatures from -40°C to +85°C.

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

• Ultra-low dropout performance with high power supply rejection ratio for stable regulation.
• Integrated enable pin allows for precise power management and system control.
• Comprehensive protection mechanisms including current limit, foldback short-circuit, and thermal shutdown.
• Stable operation with various capacitor types including MLCC, electrolytic, tantalum, and solid capacitors.

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

• Laptop computers
• Audio and video equipment
• Battery-powered devices

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

Verify the specific ordering suffix SPR corresponds to the SO-8EPR package configuration before procurement. Confirm that the fixed 2.5V output variant matches the design requirements, as other voltage options exist within the AP7361EA series. Ensure compatibility with RoHS 3 and halogen-free manufacturing standards if required by the target market regulations.

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

Select this component when a fixed 2.5V rail is needed with 1A capability and low quiescent current. The SO-8EPR package offers enhanced thermal dissipation via the exposed pad compared to smaller packages. Consider the 75dB PSRR at 1kHz for noise-sensitive applications. Verify that the input voltage remains above the minimum threshold while accounting for dropout voltage under maximum load conditions.

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

This part belongs to the AP7361EA family of 1A adjustable and fixed-mode regulators. The family shares core electrical characteristics but varies by output voltage and physical package. The SPR suffix specifically denotes the SO-8EPR tape and reel packaging format, distinguishing it from other variants like SOT-223 or DFN packages.

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

Direct replacements must match the 1A current rating, 2.5V fixed output, and SO-8EPR package. Other AP7361EA variants with different output voltages are not electrically compatible without circuit redesign. Cross-brand LDOs require verification of pinout, dropout voltage, and stability requirements with equivalent output capacitance.

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

What is the purpose of the EN pin on the AP7361EA-SPR-13?

The EN pin is an active-high enable input. Setting it to a logic-high level turns the regulator on, while pulling it low shuts down the output, allowing for power management control.

How does the AP7361EA handle short-circuit conditions?

The device incorporates foldback short-circuit protection that clamps the output current to approximately 400mA when the output is shorted to ground, protecting the IC from damage.