AP7346D-3018FS6-7

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

The AP7346D-3018FS6-7 is a dual high accuracy current limit low dropout regulator with enable, manufactured by Diodes Incorporated. It provides fixed output voltages of 3.0V on Channel 1 and 1.8V on Channel 2. The device supports an input voltage range from 1.7V to 5.25V and delivers up to 130mA output current per channel. Key electrical characteristics include ±1% output voltage accuracy, 75dB ripple rejection at 1kHz, and low quiescent current as low as 35µA. It features built-in short-circuit protection and operates within a temperature range of -40°C to +85°C.

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

• Dual-channel architecture with independent enable control for each regulator
• High accuracy current limiting with fold-back short circuit protection
• Low output noise and high ripple rejection for sensitive applications
• Integrated auto-discharge function for rapid output voltage decay

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

• Fingerprint modulars
• RF supplies
• Cameras
• Portable media players
• Wireless communications

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific automotive qualification requirements if applicable. Ensure the ordering suffix matches the required package type and packing quantity. Validate that the part number corresponds to the correct output voltage configuration before procurement.

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

Select this component when dual isolated rails are needed in a compact footprint. Consider the 3.0V/1.8V output combination for systems requiring these specific logic levels. Evaluate the low dropout performance against the minimum input voltage available in the design. Verify that the 130mA current rating meets the peak load requirements of both channels simultaneously.

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

This device belongs to the AP7346 series of dual LDO regulators designed for low power handheld communication equipment. It utilizes a CMOS process to achieve low power consumption and fast transient response. The series is packaged in X2-DFN1212-6 to allow for dense PCB layout. Note that the datasheet indicates this series is not recommended for new designs.

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

Public confirmed substitute part numbers: AP7345D-3018FS6-7

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

What is the maximum output current per channel?

The maximum output current is 130mA per channel.

How does the enable pin function affect the output?

Driving the EN pin high enables the output, while pulling it low puts the regulator into shutdown mode.

What is the typical ripple rejection at 1kHz?

The ripple rejection is typically 75dB at 1kHz.