AP7347E-28FDCW-7R

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

The AP7347E-28FDCW-7R is a fixed-output low dropout regulator manufactured by Diodes Incorporated, providing a precise 2.8V output with ±1% accuracy. It operates within an input voltage range of 1.7V to 5.5V and delivers up to 500mA of guaranteed output current. The device features high power supply rejection ratio (PSRR) of 75dB at 1kHz and low output noise of 60µVrms from 10Hz to 100kHz. Quiescent current is maintained at a maximum of 75µA. It includes integrated thermal shutdown, current limit protection, and an active output discharge feature.

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

• Integrated power-good indicator for supply monitoring and sequencing
• Active output discharge capability for rapid shutdown
• High ripple rejection and low output noise for sensitive applications
• Built-in thermal shutdown and fold-back short-circuit protection

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

• Desktops and notebooks
• Servers
• Gaming consoles
• Camera modules
• Medium-current, noise-sensitive applications

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

Verify the specific package code FDCW corresponds to the U-DFN2020-6 (SWP) (Type UXC) footprint during design integration. Confirm that the '7R' suffix indicates tape and reel packaging. Ensure the selected component matches the required 2.8V fixed output specification. Cross-reference the datasheet revision DS46688 Rev. 1 - 2 for the most accurate electrical characteristics and pin assignments before finalizing procurement orders.

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

Select this component when a stable 2.8V rail is required with minimal noise in portable or server environments. The U-DFN2020-6 package offers a compact solution suitable for space-constrained PCB layouts. Consider the 75µA quiescent current for battery-operated devices requiring efficient standby modes. Verify that the input voltage remains within the 1.7V to 5.5V range under all operating conditions to ensure proper regulation and stability.

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

This part belongs to the AP7347E series of 500mA high PSRR low noise LDO regulators. The series supports both fixed and adjustable output voltages ranging from 1.0V to 5.0V. It is designed using a CMOS process to achieve low power consumption and fast transient response. The family is available in U-DFN2020-6 and V-DFN3030-8 packages, catering to various thermal and size requirements for modern electronic systems.

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

AP7347E-28FDCWR-7R: Identical electrical specifications but utilizes the U-DFN2020-6R (SWP) (Type UXC) package variant.