AP7347EQ-105FDCW-7R

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

The AP7347EQ-105FDCW-7R is a low dropout regulator manufactured by Diodes Incorporated, featuring high output voltage accuracy and low noise. 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 1.05V with ±1% accuracy. Key electrical characteristics include a ripple rejection of 75dB at 1kHz and a low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is as low as 75µA. It includes a power-good indicator and active output discharge.

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

• Integrated power-good (PG) open-drain output for supply monitoring and sequencing
• Active output discharge ensures known system startup state when disabled
• Fold-back short-circuit current limit protects against overcurrent and overheating
• Thermal shutdown protection disables output at approximately +170°C

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 containing 3000 units per carrier. Confirm that the package code 'FDCW' matches the required U-DFN2020-6 (SWP) footprint for your PCB layout. Ensure the fixed output voltage designation '105' aligns with the target 1.05V requirement. Cross-reference the manufacturer part number with official Diodes Incorporated documentation to confirm availability and lead times before finalizing procurement plans.

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

Select this component for designs requiring high PSRR and low noise in compact form factors. The U-DFN2020-6 package offers a small footprint suitable for space-constrained boards. Consider the thermal resistance characteristics when designing for high ambient temperatures or heavy loads. Verify that the input voltage range covers the minimum operating requirements of the downstream circuitry while staying within absolute maximum ratings.

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

This LDO belongs to the AP7347E series, designed for noise-sensitive equipment. It utilizes a CMOS process to achieve low quiescent current and low on-resistance. The series supports both fixed and adjustable output voltages. It is packaged in U-DFN2020-6 and V-DFN3030-8 formats. The device integrates a voltage reference, error amplifier, and current limit circuit for robust performance.

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

AP7347DQ-105FDCW-7R