AP7343Q-33FDZW-7

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

The AP7343Q-33FDZW-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed 3.3V output with a guaranteed maximum current of 300mA. The device operates within an input voltage range of 1.7V to 5.25V and supports an ambient temperature range from -40°C to +125°C. Key electrical specifications include a quiescent current of 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms. It utilizes the W-DFN2020-6 (SWP) Type A1 package.

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

• Automotive compliant design qualified to AEC-Q100 standards for use in noise-sensitive automotive applications
• Integrated enable pin allows for precise power management control and shutdown functionality
• CMOS process technology ensures high output voltage accuracy and low power consumption
• Includes built-in thermal shutdown and current limit circuits for enhanced protection

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 that the specific part number suffix FDZW corresponds to the W-DFN2020-6 (SWP) Type A1 package configuration required for your PCB layout. Confirm that the non-discharge variant meets system requirements, as discharge versions utilize different suffixes. Ensure compliance with RoHS and halogen-free definitions during procurement.

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

Select this component when designing for automotive environments requiring strict change control and PPAP documentation. The W-DFN2020-6 package offers a small footprint suitable for dense layouts. Verify that the 300mA load capability and 3.3V fixed output align with downstream circuit demands without exceeding thermal limits.

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

This component belongs to the AP7343Q series of low dropout regulators designed specifically for automotive applications. Unlike standard industrial variants, these parts are manufactured in IATF 16949 certified facilities and support specific automotive quality standards. The series includes various output voltages and package options to accommodate diverse system architectures.

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

AP7343DQ-33FDZW-7: Identical electrical and thermal performance but includes an internal auto-discharge feature on the output.