AP7341D-135FS4-7

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

The AP7341D-135FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 1.35V with an accuracy of ±1%. The device supports a guaranteed continuous output current of 300mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical characteristics include a quiescent current as low as 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. It features built-in short circuit protection and thermal shutdown.

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

• Integrated enable pin for power control and shutdown mode management
• High power supply ripple rejection capability for noise-sensitive applications
• Low output noise performance suitable for RF and communication circuits
• Built-in discharge function to ensure known system startup states

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 documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with RoHS and REACH compliance requirements for your region. Confirm that the selected component matches the required output voltage accuracy grade and discharge feature options defined in the manufacturer's datasheet before finalizing procurement orders.

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

Select this component when a stable 1.35V rail is required for low-power portable electronics. Consider the X2-DFN1010-4 package for dense PCB layouts. Evaluate the input voltage range against the source supply to ensure adequate headroom for the specified dropout voltage at maximum load currents. Verify that the external capacitor ESR values fall within the stability region defined in the application guidelines.

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 series utilizes a CMOS process to achieve high output voltage accuracy and low on-resistance. The AP7341D variant specifically includes an integrated output discharge feature, distinguishing it from non-discharge versions within the same family.

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

AP7341-135FS4-7

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.

Does this device include output discharge?

Yes, the AP7341D-135FS4-7 includes a built-in active discharge function to ensure the output discharges when disabled.