AP7343Q-10W5-7

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

The AP7343Q-10W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed 1.0V output with a guaranteed maximum current of 300mA. The device operates within an input voltage range of 1.7V to 5.25V and features high power supply rejection ratio performance of 75dB at 1kHz. It utilizes a CMOS process and includes integrated protection mechanisms such as thermal shutdown and current limiting.

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

• AEC-Q100 qualified for automotive applications requiring specific change control
• Integrated enable pin for precise power management and shutdown control
• Low output noise suitable for sensitive RF and infotainment circuits
• High output voltage accuracy with internal resistor network

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 part number suffix W5 corresponds to the SOT25 package configuration. Confirm that the Q suffix indicates AEC-Q100 qualification and PPAP capability. Ensure the ordering code matches the required fixed 1.0V output specification. Check datasheet revision DS41595 Rev. 5 for any updates to electrical characteristics or marking information before finalizing procurement.

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

Select this component when designing for noise-sensitive automotive environments requiring stable low-voltage rails. The SOT25 package offers a compact footprint for dense PCB layouts. Consider the 1.0V output specifically for powering digital logic or sensors operating at this voltage level. Verify input voltage stability remains within the 1.7V to 5.25V operational range under all load conditions.

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

This device belongs to the AP7343Q series of low dropout regulators designed for automotive compliance. It shares architectural similarities with standard AP7343 variants but includes enhanced qualification for automotive use. The series supports various fixed output voltages and packages, including W-DFN options, providing flexibility for different thermal and spatial constraints in vehicle electronics.

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

AP7343D-10W5-7: Standard commercial grade version without automotive qualification.

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

Does the AP7343Q-10W5-7 include an auto-discharge feature?

No, the AP7343Q variant does not include an auto-discharge feature. The AP7343DQ variant includes this function.

What is the recommended capacitor configuration for stability?

The datasheet recommends using ceramic capacitors with low ESR. A minimum 0.47μF input capacitor and an output capacitor are required for stability and transient response improvement.