AP7361EA-33E-13

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

The AP7361EA-33E-13 is a fixed-output linear regulator manufactured by Diodes Incorporated, providing a stable 3.3V output with a maximum current capacity of 1A. It operates within an input voltage range of 2.2V to 6.0V and features a typical dropout voltage of 340mV at full load. The device incorporates an enable pin for power management, maintaining a low quiescent current of approximately 68µA. It includes built-in thermal shutdown and current limiting protection, housed in a SOT223 surface-mount package suitable for -40°C to +85°C operation.

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

• Ultra-low dropout performance ensures efficient regulation under minimal input-to-output voltage differentials.
• Integrated enable function allows precise control over power states through logic-level signals.
• Comprehensive protection mechanisms include foldback short-circuit current limiting and thermal shutdown to prevent damage during fault conditions.

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 suffix 'E' corresponds to the SOT223 package configuration as defined in the manufacturer's ordering guide. Confirm that the '-13' designation aligns with the required tape and reel packaging quantity. Ensure compatibility with RoHS 3 compliance standards if applicable to your manufacturing requirements. Cross-reference the datasheet revision to confirm electrical characteristics match your design specifications.

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

Select this component when a fixed 3.3V rail is required with high efficiency near the dropout threshold. The SOT223 package offers adequate thermal dissipation for moderate power loads. Consider the 68µA quiescent current for battery life optimization. Verify that the input voltage remains above the minimum requirement while accounting for line regulation variations across the operating temperature range.

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

This part belongs to the AP7361EA family of 1A low dropout regulators featuring adjustable and fixed output options. The series is designed for low-to-medium power applications requiring high power supply rejection ratios. It supports various packages including U-DFN3030-8, SOT89-5, and SO-8EP, offering flexibility for different PCB layout constraints and thermal management needs.

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

LM3940IMP-3.3/NOPB is listed as a similar alternative by distributors.

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

What is the typical dropout voltage for the AP7361EA-33E-13 at full load?

The typical dropout voltage is 340mV when delivering 1A of output current.

How does the enable pin function on this regulator?

The device turns on when the EN pin is set to a logic-high level and shuts down when pulled low, allowing for external power control.