AP7343Q-185W5-7

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

The AP7343Q-185W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed output voltage of 1.85V with a guaranteed maximum output current of 300mA. The device operates within an input voltage range of 1.7V to 5.25V and features high ripple rejection of 75dB at 1kHz. It includes an enable pin for power control, short-circuit protection, and thermal shutdown. The component is housed in a SOT-25-5 surface-mount package and supports an operating temperature range 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
• High ripple rejection ratio for noise-sensitive applications
• Integrated enable pin for precise power management control
• Low quiescent current consumption for efficient operation

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

• Infotainment power supplies
• Automotive RF supplies
• Cameras
• Automotive POL in ADAS
• Automotive wireless communications

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

Verify the specific suffix 'W5' confirms the SOT-25-5 package type required for your PCB layout. Ensure the 'Q' designation aligns with your project's automotive compliance standards. Confirm that the non-discharge variant matches your system's power-down requirements. Validate that the 1.85V fixed output meets the target circuit specifications before finalizing procurement.

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

Select this component when designing for automotive environments requiring strict reliability standards. The wide input voltage range accommodates various battery architectures. High PSRR makes it suitable for sensitive analog or RF sections. Verify that the 300mA current capacity satisfies peak load demands while maintaining stability with recommended ceramic capacitors.

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

This part belongs to the AP7343Q series of low dropout regulators designed specifically for automotive applications. It shares electrical characteristics with standard variants but carries additional automotive qualification certifications. The series offers multiple fixed output voltages and package options to support diverse design constraints in modern vehicle electronics.

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

AP7343DQ-185W5-7 is an electrically similar alternative featuring built-in output discharge.