AP7347DQ-50W5-7

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

The AP7347DQ-50W5-7 is a CMOS-based low dropout regulator with a fixed 5.0V output, manufactured by Diodes Incorporated. It supports up to 500mA output current within a 1.7V to 5.5V input voltage range. The device features ±1% output voltage accuracy and operates across a temperature range of -40°C to +125°C. Key electrical parameters include a typical ripple rejection of 75dB at 1kHz, an output noise of 60µVrms (10Hz to 100kHz), and a quiescent current of 60µA. It utilizes a SOT25 (Type A1) package.

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

• Automotive compliant with AEC-Q100 qualification and PPAP capability for strict change control requirements.
• Integrated enable pin with active discharge functionality to ensure known system startup states when disabled.
• Includes built-in thermal shutdown and short-circuit protection with fold-back current limiting.

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

• Infotainment power supplies
• Automotive RF supplies
• ADAS point-of-load applications

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

Verify the specific ordering suffix W5 corresponds to the SOT25 (Type A1) package configuration required for your design. Confirm that the automotive compliance attributes, including IATF 16949 manufacturing certification, meet your project's quality standards. Ensure the fixed 5.0V output aligns with your load requirements before finalizing procurement.

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

Select this component for designs requiring high power supply rejection ratio in noise-sensitive environments. The integrated enable feature allows for precise power management control. Verify that the input voltage remains within the specified 1.7V to 5.5V window under all operating conditions to maintain regulation stability.

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

This part belongs to the AP7347DQ series of low dropout regulators designed for automotive applications. It is manufactured in IATF 16949 certified facilities and supports production part approval processes. The series offers various fixed output voltages and packaging options to accommodate different PCB layout constraints.

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

Direct substitutes within the same family include AP7347DQ-33W5-7 for 3.3V output or AP7347DQ-18W5-7 for 1.8V output, provided the voltage requirement differs. Other packages like W-DFN2020-6 are available but require footprint redesign.

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

What is the function of the EN pin?

The EN pin enables or disables the regulator. Driving it high turns the device on, while pulling it low activates shutdown mode with an internal active discharge to ensure a known state.

Is the AP7347DQ-50W5-7 suitable for automotive use?

Yes, it is AEC-Q100 qualified and manufactured in IATF 16949 certified facilities, making it suitable for automotive applications requiring specific change control.