AP7347D-33W5-7

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

The AP7347D-33W5-7 is a low-dropout regulator from Diodes Incorporated, featuring a fixed 3.3V output with ±1% accuracy. It operates within an input voltage range of 1.7V to 5.5V and guarantees 500mA output current. Key electrical parameters include 75dB ripple rejection at 1kHz and 60µVrms output noise (10Hz–100kHz). Quiescent current is as low as 60µA. The device includes thermal shutdown and short-circuit protection, housed in a SOT25 package.

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

• Integrated enable pin for power control
• High power supply ripple rejection
• Low output noise performance
• Built-in thermal and current 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 the specific ordering suffix W5 confirms the SOT25 package type. Confirm the -7 suffix indicates tape and reel packaging. Ensure the part number matches the required 3.3V output variant. Check for RoHS compliance documentation if required by your manufacturing standards. Validate that the supplier provides official datasheets for technical reference.

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

Select this component when a stable 3.3V rail is needed with high precision. The low dropout voltage supports efficient operation near input limits. The enable feature allows system power management. Consider the SOT25 footprint constraints during PCB layout. Verify load transient requirements against the specified stability characteristics.

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

This part belongs to the AP7347D family of high PSRR LDOs. It is designed for noise-sensitive applications requiring low quiescent current. The CMOS process ensures low power consumption. Other variants offer different fixed output voltages or automotive grades. The W5 suffix specifically denotes the SOT25 physical package configuration.

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

Check for AP7347DQ for automotive-grade requirements. Verify pin compatibility with other 3.3V LDOs in the same package. Ensure electrical specifications meet or exceed original design margins.