AP7361C-33SP-13

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

The AP7361C-33SP-13 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated. It provides a regulated 3.3V output with a maximum current of 1A. The device operates within an input voltage range of 2.2V to 6.0V and features an enable pin for power control. It utilizes the SO-8EP surface-mount package and includes built-in thermal shutdown and current limit protection. The typical quiescent current is 60µA, and it maintains stability with ceramic output capacitors of at least 2.2µF.

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

• Integrated enable pin allows active high logic control for power management
• Built-in thermal shutdown and fold-back short circuit protection prevent damage during fault conditions
• Capable of driving loads up to 1A with ultra-low dropout characteristics
• Stable operation ensured with standard MLCC, E-Cap, or solid capacitors

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

• Laptop computers
• Audio and video applications
• Battery-powered devices
• LCD-TV and monitors
• Set-top-boxes

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

Verify that the specific part number suffix matches the required package type and output voltage configuration before ordering. Confirm RoHS compliance and lead-free status requirements align with project specifications. Ensure the supply channel is authorized to guarantee product authenticity and traceability. Review datasheet revision history for any potential design changes affecting compatibility.

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

Select this component when a fixed 3.3V rail is required with high current capability in a compact footprint. The SO-8EP package offers improved thermal dissipation compared to smaller alternatives. Consider the 60µA quiescent current for battery life optimization. Verify that the input voltage remains within the specified 2.2V to 6.0V range under all operating conditions.

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

This device belongs to the AP7361C family of 1A low dropout regulators. The series includes adjustable versions and various fixed output voltages. Different package options such as U-DFN3030-8, SOT89-5, and SOT223 are available within the same functional family to suit diverse PCB layout constraints.

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

Direct substitutes include other AP7361C variants with different output voltages or packages, provided the electrical parameters match the application requirements. Cross-manufacturer replacements must be evaluated for pinout compatibility and thermal performance differences.

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

What is the minimum output capacitance required for stability?

The AP7361C requires a minimum output capacitance of 2.2µF to ensure stability. Ceramic capacitors are recommended.

How does the thermal shutdown function operate?

Thermal shutdown disables the output when the junction temperature reaches approximately +150°C. The output re-enables when the temperature drops to approximately +130°C.

Is the adjustable version available in the SO-8EP package?

Yes, the AP7361C-ADJSP-13 variant provides an adjustable output voltage range from 0.8V to 5.0V using the SO-8EP package.