AP7347E-25FDCWR-7R

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

The AP7347E-25FDCWR-7R is a fixed-output low dropout regulator manufactured by Diodes Incorporated, delivering a nominal output voltage of 2.5V with ±1% accuracy. It supports a guaranteed continuous output current of 500mA within an input voltage range of 1.7V to 5.5V. The device features a power-good indicator and operates at a quiescent current of 75µA. Packaged in the U-DFN2020-6 (SWP) Type UXC format with code FDCWR, it provides high ripple rejection of 75dB at 1kHz and low output noise of 60µVrms.

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

• Integrated power-good open-drain output for supply monitoring and sequencing
• Active output discharge capability to ensure known system startup states
• Fold-back short-circuit protection and thermal shutdown for enhanced reliability

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

• Noise-sensitive equipment requiring stable power rails
• Desktops and notebooks
• Servers and gaming consoles
• Camera modules

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

Verify that the specific part number matches the required package type and output voltage configuration. Confirm compliance with environmental directives such as RoHS and Halogen-free standards if applicable to your manufacturing process. Ensure proper handling procedures are followed during assembly due to the surface-mount nature of the component.

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

Select this component when a fixed 2.5V rail is needed with high precision and low noise characteristics. Consider the U-DFN2020-6 package for space-constrained designs requiring efficient thermal dissipation through the exposed pad. Evaluate the 500mA current capability against peak load requirements to ensure adequate headroom.

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

This device belongs to the AP7347E series of low dropout regulators designed for high performance and low power consumption. It utilizes a CMOS process to achieve low on-resistance and high power supply rejection ratio. The series offers both fixed and adjustable output options across various compact packages suitable for modern electronic applications.

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

AP7347E-25FDCW-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 has reached its valid regulation threshold. It goes into a high-impedance state when VOUT exceeds the threshold and pulls low when VOUT drops below the threshold or the device is disabled.

How does the active output discharge feature work?

When the enable pin is pulled low to disable the regulator, an internal MOSFET connects the output to ground through a specified resistance. This actively discharges the output capacitor, ensuring the system starts from a known state upon re-enablement.