AP7347E-12FDCW-7R

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

The AP7347E-12FDCW-7R is a low dropout regulator manufactured by Diodes Incorporated, featuring a fixed 1.2V output voltage and housed in a U-DFN2020-6 (SWP) package with code FDCW. It supports an input voltage range of 1.7V to 5.5V and guarantees a continuous output current of 500mA. The device provides ±1% output voltage accuracy at 25°C and maintains ripple rejection of 75dB at 1kHz. It operates within a junction temperature range of -40°C to +125°C.

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

• Integrated power-good indicator for supply monitoring and sequencing
• Active output discharge ensures known system startup states when disabled
• Fold-back short-circuit protection limits output current during fault conditions
• Thermal shutdown protection prevents damage from overheating

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 matches the required tape and reel packaging configuration. Confirm that the U-DFN2020-6 package variant aligns with the designated footprint on the target printed circuit board. Ensure the fixed 1.2V output specification satisfies the precise voltage requirements of the downstream load circuitry before finalizing procurement.

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

Select this component for designs requiring high power supply rejection ratio and low output noise in compact form factors. The integrated enable pin allows for precise power management control. Verify that the thermal dissipation capabilities of the U-DFN2020-6 package are sufficient for the expected ambient temperatures and load currents in the final application environment.

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 offers both fixed and adjustable output voltage options across various packages. The AP7347E-12FDCW-7R specifically utilizes the U-DFN2020-6 package, providing a small footprint suitable for dense PCB layouts while maintaining robust electrical performance characteristics.

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

AP7347E-12FDCWR-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 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 active output discharge feature work?

When the enable pin is pulled low to shut down the regulator, an internal N-channel MOSFET activates to actively discharge the output capacitor. This ensures the system starts up in a known state rather than floating.