AP7343Q-11FDUW-7

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

The AP7343Q-11FDUW-7 is a fixed-output low-dropout (LDO) voltage regulator manufactured by Diodes Incorporated. It provides a stable 1.1 V output with a maximum load current of 300 mA. The device features a typical power supply rejection ratio (PSRR) of 75 dB and a quiescent current of 35 uA. It operates within an input voltage range of 1.7 V to 5.25 V and supports junction temperatures from -40°C to +125°C. The component is housed in a W-DFN2020-6 package and meets AEC-Q100 automotive qualification standards.

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

• Automotive-grade reliability compliant with AEC-Q100 standards for harsh environment operation
• High power supply rejection ratio ensures clean power delivery for noise-sensitive circuits
• Ultra-low quiescent current extends battery life in portable applications
• Integrated thermal shutdown and current limiting protect against overload conditions

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

• Powering microcontrollers and sensors in automotive electronic control units
• Voltage regulation for battery-powered consumer electronics
• Supply conditioning for RF modules requiring low noise performance
• Embedded systems in industrial equipment operating under wide temperature ranges

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

Verify the specific suffix FDUW corresponds to the W-DFN2020-6 package and tape-and-reel quantity when sourcing. Confirm AEC-Q100 certification status through official Diodes Incorporated documentation or authorized distributor datasheets. Ensure compatibility with PCB footprint dimensions for the specified surface-mount package before finalizing procurement orders.

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

Select this component when a fixed 1.1 V rail is required for automotive or high-reliability applications. The 300 mA output capability suits moderate load demands, while the low dropout voltage allows efficient operation near the input rail. Consider the W-DFN2020-6 package size for space-constrained designs requiring robust thermal performance and small form factor integration.

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

This part belongs to the AP7343Q series of automotive LDO regulators designed by Diodes Incorporated. The series emphasizes high PSRR and low noise characteristics suitable for sensitive analog and digital loads. The Q-series designation indicates compliance with automotive quality standards, distinguishing it from commercial variants like the AP7343D which may have different temperature ratings or packaging options.

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

Direct substitutes include other AP7343Q variants with different fixed output voltages such as AP7343Q-18FDUW-7 or AP7343Q-28FDUW-7 if voltage adjustment is permissible. Cross-reference with AP7343D series parts only if automotive qualification is not strictly required and temperature range adjustments are acceptable.