AP7361EA-33DR-13

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

The AP7361EA-33DR-13 is a fixed-output linear regulator manufactured by Diodes Incorporated, delivering a nominal 3.3V output at up to 1A load current. It operates within an input voltage range of 2.2V to 6.0V and features a typical dropout voltage of 360mV at full load. The device incorporates an enable pin for power control and maintains a low quiescent current of approximately 68µA. It includes built-in current limiting, foldback short-circuit protection, and thermal shutdown circuitry. The component is housed in a TO252 (DPAK)R surface-mount package.

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

• Ultra-low dropout performance with high PSRR for clean power delivery
• Integrated enable function for precise system power management
• Comprehensive protection against overcurrent, short circuits, and overheating
• Stable operation with various capacitor types including MLCC and solid capacitors

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

• LCD TVs and monitors
• Set-top boxes
• Home electrical appliances

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

Verify the specific suffix DR corresponds to the TO252 (DPAK)R package variant when sourcing. Confirm that the -13 suffix indicates tape and reel packaging quantities. Ensure compatibility with RoHS 3 and halogen-free requirements if mandated by your design specifications. Cross-reference the datasheet revision to confirm pinout consistency for the DPAK form factor.

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

Select this part for applications requiring a stable 3.3V rail from inputs between 2.2V and 6.0V. The TO252 package offers higher power dissipation capabilities compared to smaller SOT packages, suitable for loads approaching 1A. Verify that the required dropout voltage remains within the 360mV typical specification under maximum load conditions. Consider the thermal resistance characteristics of the PCB layout for optimal heat dissipation.

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

This component belongs to the AP7361EA family of 1A low dropout regulators. The series supports both adjustable and fixed output voltages, offering flexibility across multiple package options including U-DFN3030-8, SOT89-5, SOT223, and SO-8EP. The AP7361EA variant specifically targets low-to-medium power consumer electronics requiring efficient linear regulation with minimal ground current consumption.

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

AP7361EA-33E-13

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

Does the TO252 (DPAK)R package include an enable pin?

No, the ON/OFF input feature is not available in the SOT223 and TO252 (DPAK)R packages. For these packages, the EN pin should be tied to the IN pin to keep the regulator output on at all times.

What is the typical quiescent current for this regulator?

The typical quiescent current is approximately 68µA when enabled and unloaded.