AP7347EQ-12FDCW-7R

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

The AP7347EQ-12FDCW-7R is a fixed-output low dropout regulator manufactured by Diodes Incorporated, delivering a precise 1.2V output at up to 500mA. It operates within an input voltage range of 1.7V to 5.5V and features a 75dB ripple rejection ratio at 1kHz alongside a low output noise of 60µVrms from 10Hz to 100kHz. The device incorporates a power-good indicator, active output discharge, and thermal shutdown protection. It is housed in a U-DFN2020-6 (SWP) package with code FDCW.

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

• Integrated power-good open-drain output for supply monitoring and sequencing
• Active output discharge ensures known system state upon disable
• Fold-back current limit protects against short circuits and overheating
• Thermal shutdown disables output above +170°C junction temperature

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

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

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

Verify the specific ordering suffix '7R' corresponds to tape-and-reel packaging when sourcing. Confirm that the 'FDCW' package code matches the required U-DFN2020-6 footprint for PCB layout compatibility. Ensure the fixed 1.2V output variant aligns with the target circuit design requirements before finalizing procurement.

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

Select this component for applications demanding high power supply rejection and low noise performance. The wide input voltage range accommodates various battery and rail configurations. Verify that the load transient response and capacitor ESR requirements are met to maintain stability across the operating temperature range.

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

This part belongs to the AP7347E series of low dropout regulators designed for high PSRR and low noise applications. The series includes both fixed and adjustable output versions available in U-DFN2020-6 and V-DFN3030-8 packages. It is engineered for use in consumer electronics and industrial systems where compact size and efficient power management are critical.

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

AP7347E-12FDCW-7R

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

How does the power-good pin function?

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

What happens during a short-circuit condition?

Short-circuit protection triggers and clamps the output current to approximately 180mA to prevent damage from overcurrent and overheating.