AP7341D-15FS4-7

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

The AP7341D-15FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 1.5V with an accuracy of ±1% at +25°C and ±1.5% across the operating temperature range. The device supports a maximum output current of 300mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical specifications include a typical quiescent current of 35µA, a ripple rejection ratio of 75dB at 1kHz, and an output noise voltage of 60µVrms from 10Hz to 100kHz. It utilizes an X2-DFN1010-4 package.

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

• Integrated enable pin for power control
• Built-in auto-discharge circuit for shutdown mode
• Short circuit protection limiting output current
• Low dropout performance with high ripple rejection

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 'D' indicates the inclusion of the built-in output discharge feature, as this distinguishes it from standard versions. Confirm the FS4 package code corresponds to the X2-DFN1010-4 footprint. Ensure compatibility with RoHS and halogen-free requirements if mandated by the design specification.

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

Select this component when a precise 1.5V rail is required with minimal board space due to the compact X2-DFN1010-4 package. The integrated discharge function simplifies system power sequencing by automatically discharging the output capacitor upon disable. Verify that the input voltage remains above the minimum threshold of 1.7V to ensure stable regulation under all load conditions.

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

This part belongs to the AP7341 series of CMOS low dropout regulators designed for portable electronics. The 'D' in the model number specifically denotes the version equipped with an internal N-channel auto-discharge resistor. This series targets applications requiring low noise and high power supply rejection ratios in small form factors.

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

AP7341-15FS4-7 (Standard version without auto-discharge)

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

What is the function of the EN pin?

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

How does the AP7341D differ from the standard AP7341?

The AP7341D includes a built-in auto-discharge feature that connects an internal resistor to ground when disabled, ensuring the output voltage drops rapidly.