LM4040DELT-3.0

Overview

The LM4040DELT-3.0 is a micropower shunt voltage reference manufactured by STMicroelectronics, providing a fixed output of 3.0 V. It features an initial accuracy of ±1% and operates within an industrial temperature range of -40 °C to +125 °C. The device maintains a maximum temperature coefficient of 70 ppm/°C and draws an ultra-low operating current of 10 µA at 25 °C. It is housed in a compact SOT23-3L surface-mount package.

Feature Summary

• Ultra-low operating current suitable for power-restricted designs
• High precision with ±1% initial accuracy at 25 °C
• Stable operation when used with capacitive loads
• Very low low-frequency noise performance

Applications

• Portable, battery-operated equipment
• Data acquisition systems
• Instrumentation

Procurement Notes

Verify the specific ordering code against official documentation to confirm the exact output voltage, tolerance class, and package type. Ensure that the selected component meets the required environmental specifications for the intended application environment before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring a stable reference voltage with minimal power consumption. The SOT23-3L package is ideal for space-constrained designs. Consider the ±1% tolerance and 70 ppm/°C temperature coefficient when designing circuits that demand high precision over wide temperature variations.

Part Context

This part belongs to the LM4040 family of precision micropower shunt voltage references from STMicroelectronics. The family offers various fixed output voltages and accuracy grades, including 0.1%, 0.2%, 0.5%, and 1%. These devices are designed for industrial applications requiring reliable voltage referencing in compact form factors.

Replacement Considerations

LM4040CELT-3.0 (0.5% accuracy)

FAQ

What is the minimum operating current for the LM4040DELT-3.0?

The minimum operating current is 10 µA at 25 °C.

Is the LM4040DELT-3.0 stable with capacitive loads?

Yes, the device is stable when used with capacitive loads.