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Product Detailed Parameters
- Description：IC VREF SHUNT 0.5% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：5V
- 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 LM4040CEM3X-5.0 is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed 5 V output. It operates within an industrial temperature range of -40°C to +85°C and utilizes a SOT-23 surface-mount package. The device provides an initial accuracy of ±0.5% at 25°C with a maximum temperature coefficient of 100 ppm/°C. Designed for space-critical applications, it eliminates the need for external stabilizing capacitors while tolerating capacitive loads.
Feature Summary
- Eliminates the need for external stabilizing capacitors
- Tolerates capacitive loads without stability issues
- Utilizes Zener-zap reverse breakdown voltage trim for high accuracy
Applications
- Portable, battery-powered equipment
- Data acquisition systems
- Instrumentation
- Process controls
- Precision audio components
Procurement Notes
Verify the specific suffix 'X' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure the component grade matches the required tolerance and temperature performance for your design. Confirm availability status as product lifecycles may change.
Selection Notes
Select this component when a compact SOT-23 footprint is required for a 5 V reference. Consider the ±0.5% initial accuracy and 100 ppm/°C temperature coefficient for industrial environments. Verify that the minimum operating current requirements align with the system's power budget.
Part Context
This part belongs to the LM4040-N family of precision micropower shunt voltage references. The series offers various fixed voltages and packages including SC70 and TO-92. The 'CEM3' designation indicates the C-grade tolerance and SOT-23 package variant within the broader LM4040 portfolio.
Replacement Considerations
LM4040CEM3-5.0/NOPB
FAQ
Does the LM4040CEM3X-5.0 require an external capacitor?
No, the advanced design eliminates the need for an external stabilizing capacitor.
What is the maximum operating current?
All versions in the LM4040-N series have a maximum operating current of 15 mA.
