AP7342D-3328FS6-7

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

The AP7342D-3328FS6-7 is a dual low-dropout regulator manufactured by Diodes Incorporated. It provides fixed output voltages of 3.3V on Channel 1 and 2.8V on Channel 2, with a guaranteed output current of 150mA per channel. The device operates within an input voltage range of 1.7V to 5.25V and features high power supply rejection ratio (PSRR) of 75dB at 1kHz. Quiescent current is typically 35µA when one channel is active. The component includes integrated enable inputs for each channel and utilizes the X2-DFN1212-6 package.

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

• Dual-channel architecture with independent enable control for each regulator output
• High ripple rejection capability ensuring stable performance under varying load conditions
• Low output noise characteristic suitable for sensitive RF and communication circuits
• Integrated short-circuit protection and thermal shutdown mechanisms

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

• Smart phones/Tablets
• RF supplies
• Cameras
• Portable videos
• Wireless adapters

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

Verify part authenticity through authorized Diodes Incorporated distributors or direct channels. Confirm RoHS compliance status and check for specific automotive qualification requirements if applicable. Ensure ordering suffix matches required packaging options. Validate datasheet revision against procurement documents to ensure technical accuracy.

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

Select this component for applications requiring two distinct regulated voltages from a single source. Consider the 150mA current limit and dropout voltage characteristics relative to input-output differentials. Evaluate PCB layout constraints due to the small X2-DFN1212-6 footprint. Verify that external capacitor ESR values fall within the stability region defined in the datasheet.

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

This device belongs to the AP7342 series of dual LDO regulators designed for low-power handheld equipment. It is based on a CMOS process technology. The manufacturer notes that this product is not recommended for new designs and suggests using the AP7345D instead.

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

AP7345D

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

What is the function of the 'D' suffix in the part number?

The 'D' suffix indicates that the regulator channels include built-in auto-discharge resistors to pull down the output voltage when the enable pin is low.

How should the Enable pins be handled if always-on operation is desired?

To keep the regulator outputs on continuously, the EN pins should be tied directly to the VIN pin.