AP7343Q-185FDUW-7

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

The AP7343Q-185FDUW-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a stable 1.85 V output with a maximum load current of 300 mA. The device operates within an input voltage range of 1.7 V to 5.25 V and features a typical power supply rejection ratio of 75 dB. Quiescent current is specified at 35 uA, ensuring efficient operation in battery-powered applications. The unit supports surface mount installation in a W-DFN2020-6 package and is qualified for automotive environments under AEC-Q100 standards.

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

• Automotive-grade qualification compliant with AEC-Q100 standards for enhanced reliability
• High power supply rejection ratio ensures effective noise suppression in sensitive circuits
• Low quiescent current design optimizes energy efficiency during standby and active modes

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

• Automotive electronic systems requiring robust voltage regulation
• Battery-powered portable devices needing extended operational life
• Noise-sensitive analog signal processing circuits

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

Verify the specific suffix FDUW against official Diodes Incorporated documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint and reflow soldering profile. Confirm that the automotive grade designation meets your project's quality requirements before finalizing procurement.

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

Select this component when automotive reliability and high PSRR are critical. The 300 mA output capability suits moderate load applications. Verify that the 1.85 V fixed output aligns with your system voltage rails. Consider the W-DFN2020-6 package constraints for thermal management and board space availability.

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

This part belongs to the AP7343Q series, which represents the automotive-qualified variant of the standard AP7343 LDO family. While sharing core electrical characteristics like 300 mA output and high PSRR, the Q-series specifically targets automotive applications requiring stricter durability and temperature performance standards compared to commercial grade counterparts.

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

AP7343Q-18W5-7 offers identical electrical performance in an SOT-25-5 package.