AP7340D-30FS4-7

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

The AP7340D-30FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.0V with an accuracy of ±1% at +25°C and ±1.5% across the operating temperature range. The device supports a guaranteed output current of 150mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical characteristics include a quiescent current as low as 35µA, a ripple rejection ratio of 75dB at 1kHz, and an output noise voltage of 60µVrms from 10Hz to 100kHz. The component 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 management
• Built-in auto-discharge circuit to rapidly reduce output voltage upon disable
• Fold-back short-circuit protection to limit output current during fault conditions
• High power supply ripple rejection capability for sensitive analog applications

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 suffix matches the required packaging configuration, as the datasheet distinguishes between standard tape-and-reel options. Confirm RoHS compliance status and lead-free specifications against the latest manufacturer documentation before finalizing procurement orders. Ensure the ordering code aligns with the intended volume requirements.

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

Select this component when a fixed 3.0V rail is required with minimal footprint constraints due to the compact X2-DFN1010-4 package. Consider the integrated discharge feature if rapid output voltage decay is necessary during system sleep modes. Evaluate the 150mA current capability against peak load demands to ensure adequate thermal performance without external heat sinking.

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

This device belongs to the AP7340 series of low dropout regulators designed for low-power handheld communication equipment. The 'D' suffix indicates the inclusion of an internal auto-discharge resistor network connected to the output, distinguishing it from the non-discharge variant. The series utilizes a CMOS process to achieve high efficiency and low noise performance suitable for portable electronics.

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

AP7340-30FS4-7

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

What is the function of the EN pin on the AP7340D?

The EN (Enable) pin controls the operation of the regulator. Driving this pin high turns the regulator on, while pulling it low activates the shutdown mode.

How does the AP7340D differ from the standard AP7340?

The AP7340D includes an integrated N-channel auto-discharge resistor that pulls the output voltage down when the device is disabled, whereas the standard AP7340 lacks this feature.