AP7343Q-25W5-7

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

The AP7343Q-25W5-7 is a CMOS-based low dropout regulator with an output voltage of 2.5V and a guaranteed maximum output current of 300mA. It operates within an input voltage range of 1.7V to 5.25V and supports an ambient temperature range from -40°C to +125°C. The device features high ripple rejection of 75dB at 1kHz, low output noise of 60µVrms (10Hz to 100kHz), and a typical quiescent current of 35µA. It includes an enable pin for power control and short-circuit protection.

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

• Automotive compliant with AEC-Q100 qualification and PPAP capability
• High power supply ripple rejection for noise-sensitive applications
• Integrated enable pin for precise power management control
• Low output noise suitable for RF and camera circuits

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 corresponds to the SOT25 package when sourcing. Confirm that the Q designation indicates automotive compliance and AEC-Q100 qualification. Ensure the ordering code matches the required fixed output voltage of 2.5V. Check datasheet revision DS41595 Rev. 5 for any updates on electrical characteristics or marking information before finalizing procurement specifications.

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

Select this component for designs requiring automotive-grade reliability and low noise performance. The SOT25 package offers a compact footprint for dense PCB layouts. Verify that the input voltage remains within the 1.7V to 5.25V range under all operating conditions. Consider thermal dissipation requirements if the load current approaches the 300mA limit.

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

This part belongs to the AP7343Q series of automotive-compliant LDOs manufactured by Diodes Incorporated. It shares core electrical specifications with other variants in the family but differs in output voltage and packaging options. The series is designed for high PSRR and low noise applications in demanding automotive environments.

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

AP7343DQ-25W5-7: Includes built-in output discharge feature; otherwise electrically identical.

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

Does the AP7343Q-25W5-7 include an internal discharge resistor?

No, the AP7343Q variant does not include an internal discharge resistor. The AP7343DQ variant includes this feature.

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.