AP7343DQ-25FDUW-7

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

The AP7343DQ-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, ensuring efficient operation in battery-powered applications. The component supports an extended operating temperature range from -40°C to +125°C and meets AEC-Q100 automotive qualification standards. It is housed in a compact W-DFN2020-6 surface-mount package.

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 output voltage under varying input conditions
• Low quiescent current design optimizes energy efficiency in portable and battery-operated systems

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

• Automotive infotainment and sensor power supplies
• Portable electronic devices requiring stable low-voltage rails
• Battery-powered IoT modules and wireless communication equipment

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

Verify the specific suffix FDUW corresponds to the W-DFN2020-6 package configuration when sourcing. Confirm that the DQ designation indicates AEC-Q100 automotive qualification status required for your application. Ensure the ordering quantity matches the manufacturer's standard reel specifications. Cross-reference the datasheet revision date to guarantee compatibility with your design requirements.

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

Select this component when a fixed 2.5 V rail is needed with automotive-grade durability. The wide input voltage range accommodates single-cell lithium batteries or unregulated sources. Consider the thermal performance of the W-DFN2020-6 package for high-current scenarios. Verify that the 300 mA output capability aligns with the peak load demands of the downstream circuitry.

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

This part belongs to the AP7343 series of low-dropout regulators designed for general-purpose and automotive applications. The series offers various fixed output voltages and packaging options to suit different space and current constraints. The AP7343DQ variant specifically targets the automotive market with enhanced reliability testing and extended temperature coverage compared to commercial grade parts.

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

AP7343DQ-25W5-7 is a verified alternative offering identical electrical characteristics but packaged in SOT-25-5 instead of W-DFN2020-6. Designers must adjust the PCB footprint layout when substituting between these package types. Other AP7343 variants with different output voltages are not direct replacements unless voltage adjustment is acceptable.