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Product Detailed Parameters
- Description：IC VREF SHUNT 3V SOT23-3
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The LM4040AELT-3.0 is a precision micropower shunt voltage reference manufactured by STMicroelectronics, providing a fixed 3.0 V output with ±0.1% initial accuracy at 25 °C. It operates within an industrial temperature range of -40 °C to +125 °C and features a maximum temperature coefficient of 70 ppm/°C. The device requires a minimum operating current of 10 µA and supports up to 15 mA reverse breakdown current. Packaged in SOT23-3L, it exhibits very low low-frequency noise (typ. 10 µVp-p) and maintains stability when used with capacitive loads.
Feature Summary
- Ultra-low operating current of 10 µA at 25 °C for power-restricted designs
- High precision with ±0.1% initial accuracy at 25 °C
- Very low low-frequency noise typical value of 10 µVp-p
- Stable operation when used with capacitive loads
Applications
- Portable, battery-operated equipment
- Data acquisition systems
- Instrumentation
Procurement Notes
Verify the specific ordering code against the manufacturer's official documentation to ensure correct package type, output voltage, and accuracy grade. Confirm that the component meets required environmental standards and operational temperature ranges for the intended application before finalizing procurement decisions.
Selection Notes
Select this component for applications requiring high precision and low power consumption in space-constrained environments. The SOT23-3L package is suitable where board area is limited. Ensure the design accounts for the minimum operating current requirement and thermal management within the specified industrial temperature range.
Part Context
The LM4040 series consists of low-power, high-accuracy shunt voltage references available in multiple fixed output voltages and accuracy grades. The LM4040AELT-3.0 specifically denotes the 0.1% accuracy variant with a 3.0 V output in the SOT23-3L surface-mount package, designed for stable performance across wide industrial conditions.
Replacement Considerations
LM4040BELT-3.0
FAQ
What is the maximum temperature coefficient for the LM4040AELT-3.0?
The maximum average temperature coefficient is 70 ppm/°C over the operating current range of 10 µA to 20 mA.
Is the LM4040AELT-3.0 stable with capacitive loads?
Yes, the device is designed to be stable when used with capacitive loads.
