AP7346D-3330FS6-7

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

The AP7346D-3330FS6-7 is a dual high accuracy low dropout regulator from Diodes Incorporated, packaged in an X2-DFN1212-6 footprint. It provides fixed output voltages of 3.3V on Channel 1 and 3.0V on Channel 2. The device operates with an input voltage range of 1.7V to 5.25V and delivers up to 130mA per channel. Key electrical characteristics include a quiescent current as low as 35µA, ripple rejection of 75dB at 1kHz, and output noise of 60µVrms. It features integrated current limit protection and enable control for each channel.

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

• Dual-channel architecture with independent enable inputs for precise power management
• High output voltage accuracy within ±1% tolerance across operating conditions
• Integrated short-circuit protection and fold-back current limiting for fault safety
• Low output noise and high ripple rejection suitable for sensitive RF applications

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 channels. Confirm RoHS compliance status and check for specific automotive qualification requirements if applicable. Ensure the ordering suffix matches the required package and packing quantity specifications before finalizing procurement orders.

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

Select this component for designs requiring dual isolated rails with tight voltage accuracy. Evaluate thermal dissipation capabilities based on the maximum power dissipation rating. Ensure input and output capacitor values meet stability requirements defined in the application information section.

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

This part belongs to the AP7346 series of dual LDO regulators. The datasheet explicitly states that the AP7346 is not recommended for new designs and recommends using the AP7345D instead. This context indicates the component may be in a legacy or end-of-life phase.

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

AP7345D-3330RH4-7

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

What is the function of the EN pins?

The EN1 and EN2 pins serve as enable inputs for Channel 1 and Channel 2 respectively. Driving these pins high enables the respective outputs, while pulling them low shuts down the regulator.

How does the device handle short circuits?

When an output pin is shorted to ground, the internal short-circuit protection triggers and clamps the output current to approximately 60mA to prevent damage.