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Product Detailed Parameters
- Description：IC VREF SHUNT 1% 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 LM4040DEM3X-5.0 is a micropower shunt voltage reference from Texas Instruments, providing a fixed 5 V output in a compact SOT-23 package. It features an initial accuracy of ±1% and a maximum temperature coefficient of 150 ppm/°C. The device operates within an industrial temperature range of -40°C to +85°C, with a minimum operating current of 68 μA and a maximum reverse current of 15 mA.
Feature Summary
- Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load.
- Utilizes bandgap reference temperature drift curvature correction and low dynamic impedance for stable performance.
- Available in sub-miniature surface-mount packages suitable for space-critical applications.
Applications
- Portable, battery-powered equipment
- Data acquisition systems
- Instrumentation
- Process controls
Procurement Notes
Verify the specific suffix 'DEM3X' against the manufacturer's datasheet to confirm the exact tolerance grade (D) and packaging format. Ensure the required operating temperature range aligns with the industrial specification (-40°C to +85°C). Cross-reference the pinout configuration for the SOT-23 package during PCB layout to prevent installation errors.
Selection Notes
Select this component when a fixed 5 V reference is required in a small footprint without external compensation components. Consider the ±1% initial accuracy and 150 ppm/°C temperature coefficient against system requirements. Evaluate the minimum operating current of 68 μA to ensure compatibility with low-power supply designs.
Part Context
This part belongs to the LM4040-N family of precision micropower shunt voltage references. The series offers various fixed breakdown voltages and tolerance grades (A through E) in SOT-23, SC70, and TO-92 packages. The LM4040-N design focuses on high accuracy and low power consumption for portable and industrial applications.
Replacement Considerations
Consult the LM4040-N datasheet orderable addendum for direct equivalents. Verify that alternative parts match the 5 V output, SOT-23 package, and ±1% tolerance specifications.
