AP7347E-30FDCWR-7R

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

The AP7347E-30FDCWR-7R is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a guaranteed output voltage of 3.0V with an accuracy of ±1%. The device supports an input voltage range from 1.7V to 5.5V and delivers up to 500mA of output current. Key electrical characteristics include a ripple rejection ratio of 75dB at 1kHz, an output noise of 60µVrms (10Hz to 100kHz), and a quiescent current of 75µA. It features a power-good indicator, active output discharge, and operates within a temperature range of -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 function to ensure known system startup states
• Fold-back short-circuit current limiting and thermal shutdown protection
• Low output noise and high ripple rejection suitable for noise-sensitive applications

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

• Desktops and notebooks
• Servers
• Gaming consoles
• Camera modules
• Medium-current, noise-sensitive applications

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

Verify the specific ordering suffix FDCWR corresponds to the U-DFN2020-6 (SWP) package type required for your design. Confirm that the 30 marking indicates the fixed 3.0V output version. Ensure compatibility with the 7R tape and reel packing quantity before finalizing procurement orders.

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

Select this component when a stable 3.0V rail is needed with strict noise requirements. The integrated power-good pin simplifies system sequencing logic. Verify that the input voltage remains above the dropout threshold under maximum load conditions to maintain regulation stability.

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

This part belongs to the AP7347E series, which offers high PSRR and low noise in compact packages. The FDCWR suffix denotes the U-DFN2020-6 (SWP) package variant. The '30' designation specifies the fixed 3.0V output voltage option within the family's adjustable or fixed range.

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

AP7347E-30FDCW-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 goes high-impedance when VOUT exceeds the threshold and pulls low when VOUT drops below the threshold or the device is disabled.

How does the device handle short circuits?

The regulator includes fold-back short-circuit protection that clamps the output current to approximately 180mA when VOUT is shorted to ground.