AP7343DQ-29FDUW-7

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

The AP7343DQ-29FDUW-7 is a dual low dropout regulator manufactured by Diodes Incorporated. It provides two fixed output voltages of 2.9V and 1.8V within a compact W-DFN2020-6 package. The device supports an input voltage range from 1.7V to 5.25V with a maximum output current of 300mA per channel. Key electrical specifications include a typical power supply rejection ratio (PSRR) of 75dB, a quiescent current of 35µA, and a line regulation of 0.02%/V. It operates reliably across a temperature range of -40°C to +125°C and meets AEC-Q100 automotive qualification standards.

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

• Dual-channel architecture providing independent regulated outputs in a single compact package
• Automotive-grade reliability certified under AEC-Q100 standards for harsh environments
• High power supply rejection ratio ensures stable performance against input noise
• Low quiescent current consumption extends battery life in portable applications

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

• Automotive infotainment systems requiring multiple stable voltage rails
• Portable electronic devices utilizing battery power sources
• Embedded control modules in industrial equipment
• Communication infrastructure powering sensitive analog circuits

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

Verify the specific suffix FDUW corresponds to the W-DFN2020-6 package and pinout configuration required for your PCB layout. Confirm that the 2.9V/1.8V dual output combination matches your system design needs. Ensure compliance with RoHS directives if applicable to your region. Check for any specific handling requirements associated with the small outline package during assembly.

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

Select this component when a dual LDO solution is needed to save board space compared to using two separate regulators. The AEC-Q100 qualification makes it suitable for automotive applications where high temperature operation up to 125°C is mandatory. Consider the 300mA output capability per channel to ensure it meets the load requirements of both downstream circuits without exceeding thermal limits.

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

This part belongs to the AP734x series of dual low dropout regulators from Diodes Incorporated. The series is designed to offer high accuracy and low noise for power-sensitive applications. The DQ suffix indicates automotive grade qualification, while the FDUW suffix specifies the specific output voltages and packaging type. This family allows designers to consolidate power management functions efficiently.

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

Direct substitutes must match the dual-output configuration, W-DFN2020-6 package, and AEC-Q100 qualification. Verify that alternative parts provide identical 2.9V and 1.8V outputs with comparable PSRR and current capabilities. Cross-reference pinouts carefully as package variations may exist within the same series.