AP7347DQ-18FDZW-7

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

The AP7347DQ-18FDZW-7 is a fixed-output automotive compliant low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 1.8V with an accuracy of ±1%. The device supports a guaranteed output current of 500mA and operates within an input voltage range of 1.7V to 5.5V. Key electrical characteristics include a ripple rejection ratio of 75dB at 1kHz, an output noise voltage of 60µVrms (10Hz to 100kHz), and a quiescent current of 60µA. It features integrated short-circuit protection with fold-back current limiting and thermal shutdown.

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

• Automotive qualified with AEC-Q100 certification and PPAP capability for strict change control requirements.
• High power density packaging in W-DFN2020-6 (SWP) format with wettable flanks for reliable soldering.
• Integrated enable pin with active discharge function to ensure known system startup states when disabled.

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

• Infotainment power supplies
• Automotive RF supplies
• ADAS load point applications

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

Verify the specific suffix FDZW corresponds to the W-DFN2020-6 package type during procurement. Confirm that the ordering quantity aligns with the standard tape and reel packing quantity specified by the manufacturer. Ensure compliance with RoHS and halogen-free material definitions required for the application environment.

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

Select this component for designs requiring high PSRR and low noise in compact automotive layouts. The W-DFN2020-6 package offers superior thermal dissipation compared to smaller alternatives. Verify that the 1.8V fixed output matches the target rail requirement without needing external resistor networks.

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

This part belongs to the AP7347DQ series of low dropout regulators designed for noise-sensitive automotive equipment. The series includes various fixed output voltages ranging from 1.0V to 5.0V. It is manufactured in IATF 16949 certified facilities to support automotive production standards.

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

Cross-reference with other AP7347DQ variants sharing the FDZW suffix if different output voltages are needed. Verify pinout compatibility before substituting with non-Diodes equivalents.