AP7341D-185FS4-7

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

The AP7341D-185FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 1.85V with an accuracy of ±1% at 25°C and ±1.5% across the operating temperature range. The device supports a guaranteed continuous output current of 300mA within an input voltage range of 1.7V to 5.25V. Key electrical specifications include a quiescent current of 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. It operates between -40°C and +85°C.

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

• Integrated enable pin for power management control
• Built-in thermal protection and short circuit current limiting
• CMOS process technology for low power consumption
• RoHS compliant and halogen-free construction

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

• Smart phone and tablet power supplies
• RF supply circuits
• Portable video equipment
• Wireless communication adapters

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

Verify the specific suffix 'D' indicates the presence of an internal auto-discharge feature on the output when disabled. Confirm the package code FS4 corresponds to the X2-DFN1010-4 footprint. Ensure the ordering suffix matches the required tape and reel quantity of 5000 units per manufacturer standard packaging.

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

Select this component for applications requiring high ripple rejection and low output noise in space-constrained designs. The integrated discharge function distinguishes it from non-discharge variants. Verify that the load transient requirements align with the stability characteristics provided for ceramic capacitors in the application guidelines.

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

This part belongs to the AP7341 series of 300mA LDO regulators. The 'D' designation specifically denotes the version equipped with an output discharge resistor. It utilizes the X2-DFN1010-4 package to minimize PCB footprint while maintaining thermal performance suitable for dense layouts.

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

AP7341-185FS4-7 (Non-discharge variant)

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

What is the function of the EN pin?

The EN pin controls the regulator state; driving it high enables the output, while pulling it low activates shutdown mode.

Does this part number include output discharge?

Yes, the 'D' in AP7341D indicates the inclusion of an internal N-channel auto-discharge resistor.