AP7347D-33FDZW-7B

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

The AP7347D-33FDZW-7B is a low-dropout regulator manufactured by Diodes Incorporated, featuring a fixed 3.3V output voltage and packaged in the W-DFN2020-6 (SWP) format. It supports an input voltage range of 1.7V to 5.5V and guarantees an output current of 500mA with ±1% accuracy. The device incorporates an enable pin, active discharge function, and thermal shutdown protection. Key electrical characteristics include a ripple rejection of 75dB at 1kHz, an 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 control with built-in active discharge for known system startup states
• High power density W-DFN2020-6 (SWP) package designed for dense PCB layouts
• Low output noise and high ripple rejection suitable for noise-sensitive applications
• Comprehensive protection mechanisms including thermal shutdown and short-circuit current limiting

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 that the specific ordering suffix matches the required package type and packing quantity. Confirm the exact output voltage code corresponds to the design requirement. Ensure compliance with RoHS and lead-free standards if mandated by the project specifications. Cross-reference the datasheet revision to confirm all technical parameters align with the intended application constraints.

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

Select this component when a compact footprint is required alongside stable 3.3V regulation. The W-DFN2020-6 package offers superior thermal dissipation compared to smaller alternatives. Consider the enable pin functionality if system power sequencing or standby current reduction is necessary. Verify that the input voltage range adequately covers the source supply variations expected in the final product environment.

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

This part belongs to the AP7347D series of low-dropout regulators designed for general-purpose and automotive-grade applications. The series provides various fixed output voltages ranging from 1.0V to 5.0V. It utilizes a CMOS process to achieve low power consumption and fast transient response. The AP7347DQ variant serves as the automotive-compliant version of this family.

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

AP7347D-33FDZW-7 is the standard tape and reel equivalent without the B suffix.