AP7347D-25FDZW-7B

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

The AP7347D-25FDZW-7B is a low-dropout regulator manufactured by Diodes Incorporated, featuring a fixed 2.5V output voltage and housed in a W-DFN2020-6 package. It supports an input voltage range of 1.7V to 5.5V and guarantees a continuous output current of 500mA with ±1% accuracy. The device incorporates high power supply rejection ratio (75dB at 1kHz) and low output noise (60µVrms). It includes an enable pin for shutdown control, thermal shutdown protection, and short-circuit current limiting.

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

• Integrated enable pin allows precise on/off control and reduces quiescent current during shutdown
• High ripple rejection and low output noise ensure stable power delivery for sensitive electronics
• Built-in thermal shutdown and foldback short-circuit protection safeguard against overcurrent and overheating

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 suffix 'B' indicates the tape and reel packaging configuration as documented in the ordering information section. Confirm that the W-DFN2020-6 package type matches the required PCB footprint and thermal dissipation needs. Ensure the EN pin is driven correctly to maintain functionality, as floating states are not supported.

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

Select this component when a fixed 2.5V rail is required with high PSRR and low noise characteristics. The W-DFN2020-6 package offers a compact footprint suitable for dense layouts. Consider the 500mA current capability and the 1.7V minimum input voltage for compatibility with single-cell lithium-ion or similar power sources.

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 achieve low quiescent current and high output voltage accuracy. It is available in multiple fixed output voltages ranging from 1.0V to 5.0V across SOT25 and W-DFN2020-6 packages.

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

AP7347D-25FDZW-7 is the standard tape and reel version without the B suffix. AP7347DQ variants offer automotive compliance but require separate datasheet verification. Cross-referencing requires matching the 2.5V output, 500mA current rating, and W-DFN2020-6 package dimensions.