AP7347D-18W5-7

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

The AP7347D-18W5-7 is a low-dropout regulator manufactured by Diodes Incorporated, featuring an 1.8V fixed output voltage and a guaranteed maximum output current of 500mA. It operates within an input voltage range of 1.7V to 5.5V and maintains high accuracy with a ±1% tolerance on the output voltage. The device incorporates a 75dB ripple rejection capability at 1kHz and exhibits a low output noise of 60µVrms across a 10Hz to 100kHz bandwidth. Quiescent current is specified as low as 60µA. It utilizes an SOT25 (Type A1) package and includes integrated thermal shutdown and short-circuit protection mechanisms.

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

• Integrates an enable pin for precise power management control
• Provides high ripple rejection and low output noise for sensitive circuits
• Includes built-in thermal shutdown and foldback short-circuit protection

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 component matches the specific 1.8V output designation and SOT25 package configuration required for your design. Confirm compliance with RoHS standards and ensure the ordering suffix aligns with tape-and-reel packaging requirements. Cross-reference the datasheet revision to validate electrical characteristics against your system specifications before finalizing procurement.

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

Select this regulator when designing systems requiring a stable 1.8V rail with minimal noise interference. Ensure the input voltage remains within the 1.7V to 5.5V operational window. Evaluate the PCB layout to accommodate the SOT25 footprint and verify that external capacitors meet stability requirements. Consider the thermal dissipation capabilities if operating near maximum load currents.

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

This component belongs to the AP7347D series of low-dropout regulators designed for automotive and consumer electronics. It shares common features such as CMOS construction and high PSRR with other variants in the family, differing primarily in output voltage settings and package options like W-DFN2020-6.

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

The AP7347DQ-18W5-7 serves as the automotive-compliant alternative within the same series. Verify that the Q-series variant meets all environmental and reliability standards required for your specific application context.