AP7347EQ-105FDCWR-7R

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

The AP7347EQ-105FDCWR-7R is a 500mA low-dropout regulator with ±1% output voltage accuracy. It operates within a 1.7V to 5.5V input range and provides a fixed 1.05V output. The device features 75dB ripple rejection at 1kHz, 60µVrms output noise from 10Hz to 100kHz, and 75µA quiescent current. It includes power-good indication, active output discharge, and thermal/short-circuit protection. Packaged in U-DFN2020-6 (SWP) Type UXC.

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

• Automotive-grade AEC-Q100 qualification for high-reliability applications
• High power supply rejection ratio of 75dB at 1kHz
• Integrated open-drain power-good indicator for system monitoring
• Active output discharge ensures safe shutdown state

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

• Infotainment power supplies
• Automotive RF supplies
• ADAS point-of-load regulation
• 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 package variant. Confirm the '7R' packing designation matches the required tape and reel specifications. Ensure the ordering code aligns with the intended 1.05V fixed output version. Cross-reference the datasheet revision against the supplier's documentation to ensure electrical characteristics match the design requirements.

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

Select this component for designs requiring high PSRR and low noise in automotive environments. The 1.05V fixed output eliminates external resistor dividers. Verify that the 500mA load current does not exceed the thermal limits for the chosen PCB layout. Consider the U-DFN2020-6 footprint constraints during the schematic capture phase.

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

This part belongs to the AP7347EQ series of high-performance LDOs designed for noise-sensitive automotive equipment. It shares core features like 500mA capability and AEC-Q100 compliance with other variants in the family, differing primarily in output voltage and package type.

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

AP7347EQ-105FDCW-7R offers identical electrical performance but uses the standard U-DFN2020-6 package instead of the R variant.