AP7341D-22FS4-7

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

The AP7341D-22FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 2.2V with an accuracy of ±1% at +25°C and ±1.5% across the operating temperature range. The device guarantees a maximum output current of 300mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical characteristics include a typical quiescent current of 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. It features short-circuit protection and is housed in an X2-DFN1010-4 package.

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

• Integrated enable pin for power control and shutdown mode
• Built-in auto-discharge circuit to rapidly reduce output voltage when disabled
• Short-circuit protection that clamps output current during fault conditions
• CMOS process technology ensuring low on-resistance and minimal footprint

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 the specific ordering suffix against official Diodes Incorporated documentation to confirm the presence of the internal discharge feature (indicated by 'D') and the X2-DFN1010-4 package type. Ensure compatibility with RoHS3 and REACH standards as specified in the manufacturer's compliance statements before finalizing procurement specifications.

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

Select this component for applications requiring precise 2.2V regulation with high ripple rejection and low noise. The integrated discharge feature distinguishes it from standard versions, making it suitable for systems requiring rapid output voltage decay. Verify that the required load current does not exceed the guaranteed 300mA limit under all operating temperature conditions.

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

This part belongs to the AP7341 series of low dropout regulators designed for handheld communication equipment. The 'D' designation indicates the inclusion of an internal auto-discharge resistor network, which actively pulls down the output voltage upon disablement. This variant utilizes the X2-DFN1010-4 package to support dense PCB layouts while maintaining thermal performance.

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

AP7341-22FS4-7

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 AP7341D differ from the standard AP7341?

The AP7341D includes an internal auto-discharge feature that rapidly reduces the output voltage when the device is disabled, whereas the standard version lacks this function.