AP7346D-1818FS6-7

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

The AP7346D-1818FS6-7 is a dual high accuracy low dropout regulator manufactured by Diodes Incorporated. It provides two fixed 1.8V outputs with a guaranteed output current of 130mA per channel. The device operates within an input voltage range of 1.7V to 5.25V and features a quiescent current as low as 35µA. It includes integrated enable inputs, current limit protection, and output discharge capabilities. Packaged in an X2-DFN1212-6 footprint, it supports operation from -40°C to +85°C.

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

• Dual-channel architecture providing independent 1.8V regulation with individual enable control for power management flexibility.
• High ripple rejection capability of 75dB at 1kHz combined with low output noise of 60µVrms for clean signal integrity.
• Integrated short-circuit protection and auto-discharge functionality to safeguard the regulator and ensure safe shutdown states.

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

• Fingerprint modulars
• RF supplies
• Cameras
• Wireless communications

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

Verify component authenticity through authorized Diodes Incorporated channels or certified distributors. Confirm RoHS compliance status and check for specific automotive qualification requirements if applicable. Ensure ordering suffixes match exact package and packing specifications. Validate datasheet revision against procurement documents to confirm technical parameters.

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

Select this component when dual isolated 1.8V rails are required in space-constrained designs. Evaluate thermal dissipation needs based on load current and ambient temperature constraints. Consider the 130mA current limit and dropout characteristics relative to the minimum input voltage available in the system design.

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

This part belongs to the AP7346 series of dual LDO regulators designed for portable electronics. It utilizes a CMOS process to achieve low power consumption and small footprint. The series targets applications requiring high accuracy and low noise in handheld communication equipment and multimedia devices.

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

The datasheet explicitly recommends using the AP7345D instead of the AP7346 for new designs. Verify pin compatibility and electrical parameter alignment before substituting any alternative components from other manufacturers.

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

How does the enable pin function affect the regulator state?

Driving the EN pin high enables the corresponding channel output, while pulling it low puts the regulator into shutdown mode. The pins must not be left floating.

What is the maximum input voltage rating for this device?

The absolute maximum input voltage rating is 6.0V, although the recommended operating range extends up to 5.25V.