AP7340-12FS4-7

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

The AP7340-12FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 1.2V with an accuracy of ±1%. The device supports a maximum output current of 150mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical characteristics include a ripple rejection ratio of 75dB at 1kHz, an output noise voltage of 60µVrms (10Hz to 100kHz), and a quiescent current as low as 35µA. 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
• High ripple rejection performance
• Low output noise specification
• Built-in short circuit protection

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 part number against official manufacturer documentation to confirm the fixed 1.2V output configuration and X2-DFN1010-4 packaging. Ensure compatibility with required input voltage ranges and load conditions before integration. Cross-reference datasheet specifications for thermal dissipation requirements and PCB layout guidelines to maintain optimal performance and stability.

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

Select this component when a stable 1.2V rail is required for low-power portable electronics. Consider the low quiescent current for battery-operated devices and the high PSRR for sensitive RF applications. Verify that the 150mA output current capability meets the peak load demands of the target circuit design.

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

This component belongs to the AP7340 series of low dropout regulators from Diodes Incorporated. The series is designed for handheld communication equipment requiring low power consumption and fast transient response. The AP7340-12FS4-7 variant specifically offers a fixed 1.2V output, distinguishing it from other voltage options within the same family.

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

AP7340D-12FS4-7

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 shutdown mode.

How does the AP7340 handle short circuits?

It includes short-circuit protection that clamps the output current to approximately 60mA when VOUT is shorted to GND.