AP7347EQ-18FGECW-13A

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

The AP7347EQ-18FGECW-13A is a fixed-output low dropout regulator manufactured by Diodes Incorporated, delivering an output voltage of 1.8V with a guaranteed maximum current of 500mA. It operates within an input voltage range of 1.7V to 5.5V and maintains a tight output accuracy of ±1%. The device features a power-good indicator, active output discharge, and high ripple rejection of 75dB at 1kHz. Packaged in the V-DFN3030-8/SWP (Type UX) format, it supports operation from -40°C to +125°C.

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

• Integrated power-good open-drain output for supply monitoring and sequencing
• Active output discharge ensures known system startup states when disabled
• Fold-back short-circuit protection limits output current during fault conditions
• Thermal shutdown circuitry protects against overheating under excessive load

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

• Noise-sensitive camera modules
• Desktops and notebooks
• Servers
• Gaming consoles
• Medium-current noise-sensitive applications

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

Verify that the specific suffix FGECW corresponds to the V-DFN3030-8/SWP package type as documented in the official datasheet ordering information. Confirm the '18' designation matches the required 1.8V fixed output voltage. Ensure the '13A' packing code aligns with the specified tape and reel carrier requirements for your manufacturing line.

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

Select this component for designs requiring high ripple rejection and low output noise in compact form factors. The V-DFN3030-8/SWP package provides enhanced thermal dissipation compared to smaller alternatives. Consider the integrated power-good feature if system sequencing or supply monitoring is necessary without additional external logic components.

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

This part belongs to the AP7347E series of low dropout regulators designed for noise-sensitive equipment. The series offers both fixed and adjustable output versions across various packages. The AP7347E family utilizes a CMOS process to achieve low quiescent current and high performance, making it suitable for portable and industrial electronics where space and efficiency are critical constraints.

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

AP7347E-FGECW-13A

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

How does the power-good pin function?

The power-good pin is an open-drain output that goes into a high-impedance state when the output voltage exceeds the threshold and pulls low when the output drops below the threshold or the device is disabled.

What is the purpose of the active output discharge?

The active output discharge feature ensures that the output capacitor discharges rapidly when the enable pin is pulled low, guaranteeing a known state upon system startup.