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Product Detailed Parameters
- Description：LM4040-N 100-PPM/C PRECISION MIC
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 85°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 LM4040DIM3-5.0 is a precision micropower shunt voltage reference manufactured by National Semiconductor, now part of Texas Instruments. It provides a fixed output voltage of 5.0 V with an initial accuracy of ±1%. The device operates within an industrial temperature range from -40°C to +85°C and features a maximum temperature coefficient of 150 ppm/°C. It supports a maximum shunt current of 15 mA and draws a typical operating current of 70 µA. The component is housed in a compact SOT-23-3 surface-mount package.
Feature Summary
- Provides stable fixed output voltage suitable for precision applications
- Designed for space-constrained designs using compact SOT-23-3 packaging
- Operates reliably across the industrial temperature range
Applications
- Portable battery-powered equipment requiring low power consumption
- Data acquisition systems needing stable reference voltages
- Industrial control circuits requiring precision voltage regulation
Procurement Notes
Verify the manufacturer designation as National Semiconductor or Texas Instruments, as the company was acquired. Confirm the specific suffix indicates the 5.0 V output variant and 1% accuracy grade. Ensure the package type matches the required SOT-23-3 footprint for PCB layout compatibility.
Selection Notes
Select this component when a fixed 5 V reference with 1% tolerance is required in a small form factor. Consider the 150 ppm/°C temperature coefficient for thermal stability needs. Evaluate the 70 µA quiescent current against system power budgets. Verify that the 15 mA maximum shunt current meets load requirements.
Part Context
This part belongs to the LM4040 family of micropower shunt voltage references. The series offers various accuracy grades and output voltages. The DIM3X suffix typically denotes the SOT-23-3 package configuration. Other variants include different voltage outputs and tighter accuracy specifications like the LM4040BIM3 series.
Replacement Considerations
LM4040DIM3X-5.0/NOPB: Direct equivalent with updated manufacturing source.
