AP7341D-295FS4-7

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

The AP7341D-295FS4-7 is a fixed-output low dropout regulator manufactured by Diodes Incorporated. It provides a nominal output voltage of 2.95V with an accuracy of ±1% at +25°C and ±1.5% across the operating temperature range. The device guarantees a continuous output current of 300mA and operates within an input voltage range of 1.7V to 5.25V. Key electrical specifications include a quiescent current of 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms from 10Hz to 100kHz. It features built-in output discharge 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 management
• Built-in auto-discharge circuitry to rapidly release stored energy upon disable
• High ripple rejection ratio ensuring stable operation under noisy conditions
• Low output noise characteristics suitable for sensitive RF and communication circuits

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 ordering suffix FS4 corresponds to the X2-DFN1010-4 package and the -7 suffix indicates tape and reel packaging. Confirm the 'D' designation in the part number matches the requirement for the integrated output discharge feature. Ensure compatibility with RoHS and halogen-free manufacturing standards as specified by the manufacturer.

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

Select this component when a precise 2.95V rail is required for low-power portable electronics. The high PSRR and low noise make it appropriate for powering RF sections or camera modules. Verify that the input voltage remains above the dropout threshold for the expected load current to maintain regulation.

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

This device belongs to the AP7341 series of CMOS low dropout regulators designed for handheld communication equipment. The series offers various fixed output voltages ranging from 1.1V to 3.3V. The AP7341D variant specifically includes an internal discharge resistor connected to the output, distinguishing it from non-discharge versions.

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

AP7341-295FS4-7 (Non-discharge version)

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

What is the function of the EN pin?

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

How does the D suffix affect the device behavior?

The 'D' indicates the presence of an integrated N-channel auto-discharge resistor that pulls the output voltage down when the device is disabled.