AP7343DQ-09FDUW-7

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

The AP7343DQ-09FDUW-7 is a fixed-output low-dropout (LDO) voltage regulator manufactured by Diodes Incorporated. It provides a stable 0.9 V output with a maximum load current of 300 mA. The device features a typical power supply rejection ratio (PSRR) of 75 dB and operates within an input voltage range of 1.7 V to 5.25 V. Quiescent current is specified at 35 uA. The unit is housed in a compact SOT-25-5 surface-mount package. It supports an extended operating temperature range from -40°C to +125°C and holds AEC-Q100 qualification for automotive reliability.

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

• AEC-Q100 qualified for automotive applications
• High PSRR and low noise performance
• Integrated enable control functionality

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

• Automotive electronic systems
• Battery-powered devices
• Noise-sensitive circuitry

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

Verify the specific suffix FD-UW against official Diodes Incorporated documentation to confirm pinout, tolerance, and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and thermal management requirements before integration. Confirm availability through authorized distributors as lead times may vary based on production schedules.

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

Select this component when a fixed 0.9 V rail is required for automotive-grade circuits. The 300 mA capacity suits moderate load applications. Verify that the input voltage remains above the dropout threshold for the expected load current. The SOT-25-5 package offers space efficiency for dense layouts.

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

This part belongs to the AP7343 series of LDO regulators designed for high PSRR and low noise. The DQ designation indicates automotive qualification under AEC-Q100 standards. The series supports various fixed output voltages and packages, providing flexibility for different power management needs in consumer and industrial electronics.

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

Check Diodes Incorporated datasheets for direct cross-references such as AP7343DQ-09W5-7 or other variants within the AP7343DQ family. Ensure replacement parts match the 0.9 V output, 300 mA current rating, and SOT-25-5 footprint.