ZRC330F03TA

Overview

The ZRC330F03TA is a precision micropower voltage reference IC manufactured by Diodes Incorporated. It utilizes a bandgap circuit design to provide a stable 3.3V output with a ±3% tolerance. The device operates within an industrial temperature range of -40°C to +85°C and features a low knee current of 15µA typical, supporting operation between 20µA and 5mA. Key electrical parameters include a temperature coefficient of 50ppm/°C, a slope resistance of 0.6Ω typical, and wideband noise of 75µVrms from 10Hz to 10kHz. It is housed in a small outline SOT-23 package.

Feature Summary

• Bandgap circuit design provides a stable 3.3V reference without requiring external stabilizing capacitors.
• Low knee current characteristic enables efficient operation in battery-powered and portable applications.
• Rugged design withstands transient effects and currents up to 200mA, ensuring superior switching capability.

Applications

• Battery powered and portable equipment
• Metering and measurement systems
• Instrumentation and test equipment
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'F03' confirms the 3.3V output voltage and ±3% initial accuracy tolerance. Ensure the package type matches the required SOT-23 footprint for surface mount assembly. Confirm compliance with RoHS3 and REACH standards if environmental regulations apply to the final product design.

Selection Notes

Select this component when a fixed 3.3V reference is needed in space-constrained designs. The low operating current makes it suitable for battery life optimization. Verify that the load requirements stay within the recommended 20µA to 5mA range for optimal performance and stability.

Part Context

This part belongs to the ZRC330 series of precision voltage references from Diodes Incorporated. The series includes variants with different tolerances (1%, 2%, 3%) and voltages. The ZRC330 family is designed for applications requiring high stability and low power consumption in compact packages.

Replacement Considerations

The datasheet notes that all ZRC330A variants (E-Line package) are obsolete. The SOT-23 package versions are the designated alternatives for these legacy parts.

FAQ

Does the ZRC330F03TA require an external capacitor for stability?

No, the device is designed to be stable without an external stabilizing capacitor and can handle capacitive loads.

What is the maximum current the device can withstand during transients?

While the recommended operating current is up to 5mA, the rugged design allows the reference to withstand transient currents up to 200mA.