AP7347EQ-15FDCWR-7R

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

The AP7347EQ-15FDCWR-7R is a fixed-output low-dropout regulator manufactured by Diodes Incorporated. It provides a 1.5V output with ±1% accuracy and supports up to 500mA load current. The device operates within a 1.7V to 5.5V input range, featuring 75dB ripple rejection at 1kHz and 60µVrms output noise. It includes an enable pin, active output discharge, and power-good indicator. Packaged in U-DFN2020-6 (SWP) Type UXC, it is AEC-Q100 qualified for automotive applications.

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

• AEC-Q100 Grade 1 qualified for automotive environments
• Integrated power-good open-drain output for supply monitoring
• Active output discharge ensures known system state upon shutdown
• Foldback current limiting protects against short circuits

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

• Automotive ADAS point-of-load regulation
• Infotainment power supplies
• Automotive RF subsystems
• Automotive wireless communication systems

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

Verify the specific suffix FDCWR corresponds to the U-DFN2020-6 (SWP) Type UXC package configuration. Confirm that the '15' designation matches the required 1.5V fixed output voltage. Ensure the ordering code includes the '-7R' tape and reel specification if bulk packaging is required for automated assembly processes.

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

Select this component when high PSRR and low noise are critical for noise-sensitive automotive loads. The 1.5V fixed output eliminates external resistor networks required for adjustable versions. Verify that the thermal dissipation requirements fit within the U-DFN2020-6 package constraints for the target ambient temperature and load conditions.

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

This part belongs to the AP7347EQ series of high-performance LDOs designed specifically for automotive markets. Unlike standard industrial regulators, these devices undergo rigorous qualification including PPAP capability and manufacturing in IATF 16949 certified facilities. The series offers both fixed and adjustable variants across multiple package options.

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

AP7347EQ-15FDCW-7R

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

What is the function of the PG pin?

The Power-Good (PG) pin is an open-drain output that indicates when VOUT exceeds the PG threshold. It goes into a high-impedance state when valid and pulls low if VOUT drops below the threshold or the device is disabled.

How does the device handle short-circuit conditions?

The AP7347EQ features foldback current limiting that clamps the output current to approximately 180mA when VOUT is shorted to ground, protecting the regulator from overheating damage.