AP7347DQ-29W5-7

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

The AP7347DQ-29W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed output voltage of 2.9V with ±1% accuracy and supports up to 500mA output current. The device operates within a wide input voltage range of 1.7V to 5.5V, featuring a typical ripple rejection ratio of 75dB at 1kHz and low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is maintained at a maximum of 60µA. Packaged in SOT-25 (Type A1), it includes thermal shutdown and short-circuit protection for reliable operation across temperatures from -40°C to +125°C.

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

• Automotive compliant with AEC-Q100 qualification and PPAP capability for use in IATF 16949 certified facilities
• Integrated enable pin allows precise power management control with low quiescent current consumption
• High power supply rejection ratio and low output noise ensure stable performance in sensitive applications
• Built-in thermal shutdown and fold-back short-circuit protection safeguard against overcurrent and overheating

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

• Infotainment power supplies
• Automotive RF supplies
• Cameras
• Automotive POL in ADAS
• Automotive wireless communication systems

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

Verify the specific ordering suffix W5 corresponds to the SOT-25 package type when sourcing components. Confirm that the Q suffix indicates compliance with automotive standards including AEC-Q100 qualification. Ensure the datasheet revision matches the required specifications for your design implementation. Check for any recent updates regarding manufacturing location or quality certifications before finalizing procurement plans.

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

Select this component for designs requiring high precision voltage regulation under varying load conditions. The low dropout characteristic makes it suitable for battery-powered systems where input voltage may approach the output level. Consider the thermal resistance values provided in the datasheet to determine adequate PCB copper area for heat dissipation. Verify that the required output capacitor ESR falls within the stability region specified in the application information section.

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

This part belongs to the AP7347DQ family of low dropout regulators designed specifically for automotive environments. The series offers various fixed output voltages ranging from 1.0V to 5.0V while maintaining consistent electrical characteristics. The W5 suffix denotes the SOT-25 package variant, providing a compact footprint suitable for dense PCB layouts. Other members of the family share similar features but differ in output voltage settings and packaging options.

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

Direct replacements include other AP7347DQ variants with different output voltages such as AP7347DQ-33W5-7 for 3.3V applications. For non-automotive contexts, standard AP7347D parts without the Q suffix may be considered if automotive compliance is not required. Always verify pin compatibility and electrical parameters match before substituting.