AP7341D-32FS4-7

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

The AP7341D-32FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.2V with a guaranteed maximum output current of 300mA. The device operates within an input voltage range of 1.7V to 5.25V and features high power supply ripple rejection of 75dB at 1kHz. Quiescent current is specified as low as 35µA, while the output noise voltage is 60µVrms across a 10Hz to 100kHz bandwidth. The unit utilizes an X2-DFN1010-4 package and includes an enable pin for power control.

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

• Integrated enable pin allows for precise power management and shutdown control
• CMOS process architecture ensures low quiescent current consumption
• High ripple rejection capability minimizes power supply noise impact
• Low output noise characteristics support sensitive analog circuitry

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

• Smart Phone/Pad
• RF Supply
• Cameras
• Portable Video
• Wireless Communication

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

Verify that the specific part number suffix matches the required output discharge configuration. Confirm the package type corresponds to the intended PCB footprint requirements. Ensure compliance with RoHS directives if environmental standards are mandatory for the project. Validate the manufacturer source against authorized distribution channels to guarantee component authenticity.

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

Select this component when a stable 3.2V rail is required from varying input sources between 1.7V and 5.25V. The integrated enable feature makes it suitable for battery-powered systems requiring power gating. Consider the thermal dissipation capabilities relative to the expected load current and ambient temperature conditions during design.

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

This device belongs to the AP7341 series of low dropout regulators designed for portable electronics. The 'D' in the model designation indicates the inclusion of an internal auto-discharge resistor on the output pin, which safely discharges the output capacitor when the device is disabled. This distinguishes it from standard versions lacking this specific discharge function.

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

AP7341-32FS4-7

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

What is the function of the EN pin?

The EN pin controls the operation of the regulator. Driving it high enables the output, while pulling it low activates the shutdown mode.

How does the D suffix affect the output behavior?

The D suffix indicates the presence of an integrated N-channel auto-discharge resistor that actively pulls down the output voltage when the device is disabled.