AP7347EQ-FGECW-13A

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

The AP7347EQ-FGECW-13A is a low dropout regulator manufactured by Diodes Incorporated, featuring high output voltage accuracy, low on-resistance, high power supply rejection ratio (PSRR), and low output noise. It operates with an input voltage range of 1.7V to 5.5V and guarantees an output current of 500mA. The device offers fixed output voltages from 1.0V to 5.0V or adjustable configurations within the same range. Key electrical characteristics include a ripple rejection of 75dB at 1kHz, 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 package code FGECW corresponds to the V-DFN3030-8/SWP (Type UX) footprint during procurement. Confirm that the ordering suffix 13A matches the required tape and reel carrier specifications. Ensure the selected output voltage variant aligns with the system requirements before finalizing orders.

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

Select this component for designs requiring high PSRR and low noise in medium-current applications. Consider the V-DFN3030-8 package for improved thermal dissipation compared to smaller footprints. Verify that the input voltage range accommodates the minimum dropout requirements for the chosen output voltage under maximum load conditions.

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 utilizes a CMOS process to achieve low power consumption and fast transient response. It includes integrated features such as a voltage reference, error amplifier, current limit circuit, and enable input for flexible system control.

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

AP7347E-FDCW-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 power-good 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 is the output voltage adjusted?

For adjustable versions, the output voltage is set using an external resistor divider connected between the output, ground, and the FB/NC pin. The internal reference voltage is 0.8V, and the feedback resistor R2 should be kept smaller than 80kΩ to maintain stability.