AP7347EQ-29FGECW-13A

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

The AP7347EQ-29FGECW-13A is a low dropout regulator manufactured by Diodes Incorporated. It provides a fixed output voltage of 2.9V with an accuracy of ±1%. The device guarantees an output current of 500mA and operates within an input voltage range of 1.7V to 5.5V. Key electrical characteristics include a ripple rejection of 75dB at 1kHz, an output noise of 60µVrms from 10Hz to 100kHz, and a quiescent current as low as 75µA. It features a power-good indicator and active output discharge.

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

• Includes a power-good (PG) open-drain output for supply monitoring and sequencing
• Features active output discharge to ensure known system startup states when disabled
• Integrated thermal shutdown and fold-back short-circuit current protection

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) housing. Confirm that the 'E' suffix in the model number aligns with the AP7347E series specifications rather than the AP7347DQ automotive variant. Ensure the ordering suffix matches the required tape and reel packing quantity of 3000 units.

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

Select this component for designs requiring high output precision and low noise in compact form factors. The V-DFN3030-8/SWP package offers improved thermal dissipation compared to smaller alternatives. Verify that the application load does not exceed the guaranteed 500mA continuous output current rating under maximum ambient temperature conditions.

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

This part belongs to the AP7347E family of high PSRR, low noise LDO regulators. It is designed for noise-sensitive equipment and utilizes a CMOS process. The device integrates a voltage reference, error amplifier, and current limit circuit. It is available in U-DFN2020-6 and V-DFN3030-8 packages.

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

AP7347E-29FGECW-13A

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

How is the Power-Good (PG) pin configured?

The PG pin is an open-drain output. It goes into a high-impedance state when VOUT exceeds the threshold and is pulled low by an internal MOSFET when VOUT drops below the threshold or the device is disabled.

What is the function of the EN pin if it is not used?

If the enable feature is not utilized, the EN pin should be tied to the VIN pin to keep the regulator output on at all times. It must not be left floating.