AP7361C-18ER-13

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

The AP7361C-18ER-13 is a fixed-output linear regulator from Diodes Incorporated, providing an 18V nominal output with a maximum continuous current of 1A. It operates within an input voltage range of 2.2V to 6.0V and features a typical dropout voltage of 570mV at full load. The device incorporates an enable pin for power management, achieving a low quiescent current of 60µA. It includes built-in thermal shutdown and fold-back short-circuit protection, ensuring reliability under fault conditions.

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

• Integrated enable control for active-high power switching
• Built-in thermal shutdown and fold-back short-circuit protection
• Stable operation with ceramic, tantalum, or solid capacitors
• High power supply rejection ratio for noise reduction

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

• Battery-powered portable devices
• Audio and video equipment
• Laptop computers
• Set-top boxes

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

Verify the specific suffix ER indicates the SOT223R package configuration. Confirm RoHS compliance and halogen-free status requirements match project specifications. Ensure EN pin logic levels align with system control signals. Validate thermal dissipation capabilities based on PCB layout and ambient temperature constraints.

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

Select this component when a fixed 1.8V rail is required with high current capability. The SOT223R package offers a balance between thermal performance and board space. Consider the enable pin functionality if system power sequencing is necessary. Verify that the input voltage remains above the minimum threshold during all operating conditions.

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

This part belongs to the AP7361C family of ultra-low dropout regulators. The series supports both adjustable and fixed output voltages across various packages including U-DFN3030-8, SOT89-5, and SO-8EP. The AP7361C design emphasizes efficiency in low-to-medium power applications while maintaining stability with small output capacitors.

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

AP7361C-18E-13 (SOT223 package)

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

Is the AP7361C-18ER-13 available in an adjustable version?

No, the '18' suffix denotes a fixed 1.8V output. Adjustable versions use the 'ADJ' suffix.

What is the function of the EN pin?

The EN pin is an active-high enable input. Setting it high turns the regulator on, while pulling it low shuts down the output.