AP7343Q-12W5-7

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

The AP7343Q-12W5-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed 1.2V 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 thermal shutdown, current limit, and an enable pin for control. The component is housed in a surface-mount SOT-25-5 package.

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

• Automotive compliant design qualified to AEC-Q100 standards
• High ripple rejection capability for noise-sensitive applications
• Integrated enable pin for precise power management control
• Low quiescent current operation for efficient power usage

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

• Infotainment power supplies
• Automotive RF supplies
• Camera systems
• 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 SOT-25 package configuration required for your PCB layout. Confirm that the non-discharge variant meets system requirements, as discharge versions carry a different part number suffix. Ensure compliance with RoHS and halogen-free specifications if mandated by your manufacturing standards. Cross-reference the datasheet revision to confirm electrical characteristics match your design constraints.

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

Select this component when designing for automotive environments requiring strict reliability standards. The fixed 1.2V output suits digital logic or sensor interfaces needing stable low-voltage rails. Verify input voltage stability remains above the minimum threshold during transients. Consider the thermal dissipation capabilities of the SOT-25 package under maximum load conditions to ensure junction temperatures remain within safe operating limits.

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. The series offers various fixed output voltages ranging from 0.9V to 3.6V. It shares core architectural features with standard commercial variants but undergoes stricter qualification processes including PPAP capability and manufacturing in IATF 16949 certified facilities to meet automotive industry demands.

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

The AP7343DQ-12W5-7 serves as a direct functional substitute featuring built-in output discharge. Standard commercial equivalents like the AP7343-12W5-7 lack automotive qualification and may not meet long-term reliability requirements for vehicle electronics.