AP7343Q-30FDUW-7

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

The AP7343Q-30FDUW-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a stable 3.0 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 dropout voltage of 220 mV at full load. It features a quiescent current of 35 uA and offers high power supply rejection ratio (PSRR) of 75 dB. Designed for automotive applications, it holds AEC-Q100 qualification and functions reliably across an extended temperature range from -40°C to +125°C.

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

• Automotive-grade reliability certified under the AEC-Q100 standard for robust performance in vehicle environments.
• Integrated enable control mechanism allows for precise power management and system-level shutdown capabilities.
• High power supply rejection ratio ensures clean output voltage stability despite input line noise variations.

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

• Powering electronic subsystems in automotive infotainment units
• Supplying regulated voltage to sensors in automotive safety systems
• Providing stable power rails for microcontrollers in automotive body electronics

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

Verify that the specific suffix FDUW corresponds to the W-DFN2020-6 package configuration as indicated by similar model data. Confirm AEC-Q100 compliance status directly with the manufacturer or authorized distributors. Ensure the ordering documentation explicitly states the 3.0 V fixed output voltage to prevent selection errors during procurement.

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

Select this component when automotive qualification is mandatory for the target application. The 300 mA output capacity suits moderate load requirements without excessive heat dissipation. The wide input voltage range accommodates various battery architectures common in automotive platforms. Verify thermal management requirements based on the specific PCB layout and ambient operating conditions.

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 AP7343 family. While the standard AP7343 serves general industrial needs, the Q-series specifically targets the stringent reliability standards required for automotive electronics. This distinction ensures compatibility with vehicle-specific environmental stresses and long-term durability requirements.

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

AP7343Q-30W5-7: Alternative SOT-25-5 package version with identical electrical specifications and automotive qualification.

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

What is the maximum input voltage for the AP7343Q-30FDUW-7?

The maximum input voltage is 5.25 V.

Does this regulator support external adjustment of the output voltage?

No, the AP7343Q-30FDUW-7 has a fixed output voltage of 3.0 V and does not support external adjustment.