AP7347D-29FDZW-7B

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

The AP7347D-29FDZW-7B is a low-dropout regulator manufactured by Diodes Incorporated, featuring a fixed output voltage of 2.9V and housed in a W-DFN2020-6 (SWP) package. It operates within an input voltage range of 1.7V to 5.5V and guarantees an output current of 500mA. The device provides ±1% output voltage accuracy and achieves a ripple rejection of 75dB at 1kHz. Key electrical characteristics include a low output noise of 60µVrms from 10Hz to 100kHz and a quiescent current as low as 60µA.

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

• Integrated enable pin for power control with active discharge functionality upon shutdown
• High power density W-DFN2020-6 wettable flank package for dense PCB layouts
• Built-in thermal shutdown and foldback short-circuit protection mechanisms

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

• Portable and battery-powered equipment
• Desktops, notebooks, and ultrabooks
• Tablets and remote controls
• White goods and appliances

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

Verify the specific ordering suffix FDZW-7B against official Diodes Incorporated documentation to confirm the exact tape and reel packaging configuration. Ensure that the component selection aligns with the required 2.9V fixed output specification and the W-DFN2020-6 footprint constraints for your design.

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

Select this component when a compact form factor is required alongside high output precision and low noise performance. The wide input voltage range accommodates various supply sources, while the integrated enable feature supports system power management strategies effectively.

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

This part belongs to the AP7347D series of low-dropout regulators designed for noise-sensitive applications. The series utilizes a CMOS process to deliver high PSRR and low quiescent current. The AP7347DQ variant serves as the automotive-compliant counterpart within the same product family.

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

AP7347D-29FDZW-7

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

What is the function of the EN pin on the AP7347D?

The EN pin enables or disables the regulator. Driving it high turns the device on, while pulling it low activates shutdown mode with an internal active discharge.

How does the AP7347D handle short-circuit conditions?

It incorporates foldback short-circuit protection that clamps the output current to approximately 55mA when VOUT is shorted to GND, preventing overheating.