AP7341-22FS4-7

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

The AP7341-22FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 2.2V with a maximum guaranteed output current of 300mA. The device operates within an input voltage range of 1.7V to 5.25V and features a typical ripple rejection ratio of 75dB at 1kHz. Quiescent current is specified as low as 35µA, while the output noise voltage is typically 60µVrms across a bandwidth from 10Hz to 100kHz. The component utilizes an X2-DFN1010-4 package and supports an operating ambient temperature range from -40°C to +85°C.

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

• Integrated enable pin for power control and shutdown mode management
• Built-in short circuit protection with fold-back current limiting
• Low output noise characteristics suitable for sensitive RF applications
• High power supply ripple rejection ratio for stable operation

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 matches the required output voltage and package configuration before procurement. Confirm compliance with RoHS directives and halogen-free requirements if environmental standards are mandatory for the target assembly. Ensure the ordering suffix corresponds to the desired tape and reel packaging format for automated placement processes.

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

Select this component when a fixed 2.2V rail is required with high ripple rejection capabilities. Consider the X2-DFN1010-4 footprint constraints during PCB layout planning. Evaluate the thermal dissipation requirements based on the expected load current and input-to-output voltage differential to ensure operation remains within the recommended limits.

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

This device belongs to the AP7341 series of low dropout regulators designed for handheld communication equipment. The series offers various fixed output voltages ranging from 1.1V to 3.3V. All variants share the same X2-DFN1010-4 package and core architecture, providing a consistent solution for dense PCB layouts requiring low quiescent current and high accuracy.

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

AP7341D-22FS4-7

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

What is the function of the EN pin?

The EN pin enables or disables the regulator. Driving it high turns the regulator on, while pulling it low activates shutdown mode.

How does the device handle short circuits?

Short circuit protection triggers when VOUT is shorted to GND, clamping the output current to approximately 60mA to prevent damage.