AP7347DQ-29FDZW-7

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

The AP7347DQ-29FDZW-7 is an automotive-compliant low dropout regulator manufactured by Diodes Incorporated. It provides a fixed output voltage of 2.9V with ±1% accuracy and supports up to 500mA output current. The device operates within a 1.7V to 5.5V input voltage range and features a typical power supply rejection ratio of 75dB at 1kHz. It utilizes the W-DFN2020-6 (SWP) package, offers a quiescent current as low as 60µA, and includes integrated thermal shutdown and short-circuit protection.

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

• Automotive-grade qualification including AEC-Q100 certification and PPAP capability for strict change control requirements.
• Integrated enable pin with active discharge functionality to ensure known system startup states when disabled.
• High noise performance with low output noise and high ripple rejection suitable for sensitive RF and infotainment applications.

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

• Infotainment power supplies
• Automotive RF supplies
• ADAS point-of-load (POL) applications

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

Verify that the specific suffix FDZW corresponds to the W-DFN2020-6 wettable flanks package type required for your PCB layout. Confirm the ordering code matches the exact 2.9V fixed output specification. Ensure compliance with RoHS and halogen-free standards if mandated by your assembly specifications.

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

Select this component when designing for automotive environments requiring high PSRR and low noise in a compact footprint. The W-DFN2020-6 package provides superior thermal dissipation compared to smaller alternatives. Verify that the 2.9V fixed output aligns with the target load requirements without needing external adjustment resistors.

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

This part belongs to the AP7347DQ series of low dropout regulators designed specifically for automotive applications. The series is characterized by its CMOS process technology, which enables low quiescent current and high output accuracy. It is manufactured in IATF 16949 certified facilities to meet automotive quality standards.

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

AP7347DQ-29W5-7

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

What is the function of the EN pin on the AP7347DQ-29FDZW-7?

The EN pin controls the regulator's operation; driving it high enables the output, while pulling it low activates shutdown mode with an internal active discharge feature.

Does the AP7347DQ-29FDZW-7 support adjustable output voltages?

No, the AP7347DQ-29FDZW-7 is a fixed output version providing exactly 2.9V via an integrated resistor network.