AP7347EQ-11FDCW-7R

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

The AP7347EQ-11FDCW-7R is a low dropout regulator manufactured by Diodes Incorporated, featuring high output voltage accuracy, low on-resistance, and high power supply rejection ratio. It operates within an input voltage range of 1.7V to 5.5V and guarantees an output current of 500mA. The device provides a fixed output voltage of 1.1V with ±1% accuracy. Key electrical parameters 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 capability for rapid shutdown
• Built-in short-circuit protection and thermal shutdown mechanisms

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 '7R' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the U-DFN2020-6 package code matches the footprint constraints of the target PCB design. Ensure compliance with RoHS and halogen-free requirements if mandated by the end-product specifications.

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

Select this component when designing circuits requiring precise 1.1V regulation with minimal noise interference. The low quiescent current makes it suitable for battery-powered systems, while the high PSRR ensures stable performance in noisy environments. Verify that the thermal dissipation capabilities of the U-DFN2020-6 package are sufficient for the expected load conditions.

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

This part belongs to the AP7347E series of LDO regulators designed for noise-sensitive equipment. It utilizes a CMOS process to achieve low power consumption and fast transient response. The series offers both fixed and adjustable output voltage options, packaged in compact surface-mount formats to support space-constrained electronic designs.

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

AP7347E-FDCW-7R (Adjustable version)

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 overcurrent conditions?

The AP7347E includes short-circuit protection that triggers when the output is shorted to ground, clamping the output current to approximately 180mA to prevent damage due to overheating.