AP7343Q-25FDUW-7

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

The AP7343Q-25FDUW-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a stable 2.5 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 maintains a typical power supply rejection ratio of 75 dB. Quiescent current is specified at 35 uA. It features a dropout voltage of 260 mV and line regulation of 0.02 %/V. The component supports operation from -40 °C to +125 °C, meets AEC-Q100 automotive qualification standards, and utilizes a WDFN2020-6 surface-mount package.

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

• Automotive-grade reliability compliant with AEC-Q100 standards for extended temperature operation
• High power supply rejection ratio ensures effective noise suppression in sensitive circuits
• Low quiescent current design optimizes battery life in portable applications
• Compact footprint enables efficient space utilization on dense printed circuit boards

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

• Automotive infotainment system power distribution
• Electronic control unit (ECU) logic supply regulation
• Sensor node power management in vehicle networks
• Body control module voltage conditioning

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

Verify the specific suffix FDUW against official Diodes Incorporated documentation to confirm the exact package variant and tape-and-reel specifications. Ensure the procurement channel sources genuine components with traceable lot codes to maintain AEC-Q100 compliance. Cross-reference the datasheet revision date to validate parameter accuracy before integration into production designs.

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

Select this component when automotive qualification is mandatory for systems requiring a fixed 2.5 V rail. The WDFN2020-6 package offers thermal advantages over larger footprints while maintaining high current capability. Consider the 300 mA limit and 260 mV dropout when designing for minimum input voltage margins under full load conditions.

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

This part belongs to the AP7343Q series, which represents the automotive-qualified extension of the standard AP7343 LDO family. While sharing core electrical characteristics such as 300 mA output and high PSRR, the Q-series variants are specifically engineered and tested to withstand the rigorous environmental and reliability demands of automotive electronics environments.

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

Direct substitutes include AP7343Q-25W5-7 and AP7343Q-25FS4-7. Verify pinout compatibility and package dimensions before substitution, as the WDFN2020-6 differs physically from SOT-25 or X2-DFN1010-4 packages.