AP7347EQ-FDCW-7R

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

The AP7347EQ-FDCW-7R is a low dropout regulator manufactured by Diodes Incorporated, packaged in U-DFN2020-6 (SWP) with package code FDCW. It provides a guaranteed output current of 500mA and operates within an input voltage range of 1.7V to 5.5V. The device features a fixed output voltage accuracy of ±1% and includes a power-good indicator for supply monitoring. Key electrical characteristics include a ripple rejection of 75dB at 1kHz, low output noise of 60µVrms from 10Hz to 100kHz, and a quiescent current as low as 75µA.

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

• Integrated power-good indicator for supply monitoring and sequencing
• Active output discharge functionality upon shutdown
• Fold-back short-circuit current protection mechanism
• Thermal shutdown protection circuit

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

• Desktops
• Notebooks
• Servers
• Gaming consoles
• Camera modules

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

Verify the specific ordering suffix matches the required tape and reel packing quantity. Confirm that the package code corresponds to the intended PCB footprint. Ensure the fixed output voltage selection aligns with the system design requirements before finalizing procurement orders.

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

Select this component for applications requiring high PSRR and low noise performance. Consider the thermal resistance values when designing heat dissipation paths. Verify that the load transient response meets the dynamic requirements of the target electronic equipment.

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. It utilizes a CMOS process and offers both fixed and adjustable output voltage versions. The series supports automotive applications through separate qualification processes.

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

AP7347E-FDCWR-7R

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

What is the function of the PG pin?

The Power-Good (PG) pin is an open-drain output that indicates when the output voltage exceeds the threshold. It goes into a high-impedance state when VOUT is above the threshold and is pulled low when VOUT drops below the threshold or the device is disabled.

How does the device handle short circuits?

When the output is short-circuited to ground, the short-circuit protection triggers and clamps the output current to approximately 180mA to prevent damage due to overheating.