AP7347EQ-115FGECW-13A

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

The AP7347EQ-115FGECW-13A is a low-dropout regulator with high output-voltage accuracy, low RDS(ON), high PSRR, low output noise, and low quiescent current. It operates within an input voltage range of 1.7V to 5.5V and guarantees an output current of 500mA. The fixed output voltage is 1.15V with ±1% accuracy. Ripple rejection is 75dB at 1kHz, and output noise is 60µVrms from 10Hz to 100kHz. Quiescent current is as low as 75µA. It features a power-good indicator and active output discharge.

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

• Includes a power-good (PG) open-drain output for supply monitoring and sequencing.
• Features active output discharge to ensure known system startup states when disabled.
• Integrated resistor network provides fixed output voltage options.
• Compliant with AEC-Q100 standards and PPAP capable for automotive applications.

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

• Infotainment power supplies
• Automotive RF supplies
• Cameras
• Automotive POL in ADAS
• Automotive wireless communication systems

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

Verify the specific package code FGECW corresponds to the V-DFN3030-8/SWP (Type UX) housing. Confirm that the ordering suffix -13A indicates tape and reel packing. Ensure the component meets RoHS and halogen-free requirements if mandated by project specifications. Validate electrical characteristics against the datasheet for the intended operating temperature range.

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

Select this part for noise-sensitive automotive equipment requiring stable power delivery. The wide input voltage range accommodates various automotive bus conditions. The integrated power-good pin facilitates system sequencing. Consider thermal dissipation requirements based on the junction-to-ambient resistance of the selected package type during high-load operations.

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

This component belongs to the AP7347EQ series of 500mA high-PSRR low-noise LDOs. It is manufactured using a CMOS process and includes internal voltage reference, error amplifier, and current-limit circuits. The series supports both fixed and adjustable output voltages, designed for high reliability in demanding environments.

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

AP7347EQ-FGECW-13A

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

What is the function of the FB/NC pin in the fixed version?

In the fixed output version, the FB/NC pin is a No Connect. It is not connected internally but should be connected to GND to maximize PCB copper for thermal dissipation.

How does the device handle short-circuit conditions?

When the VOUT pin is shorted to GND, short-circuit protection triggers and clamps the output current to approximately 180mA to prevent damage due to overheating.