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Product Detailed Parameters
- Description：IC VREF SHUNT 1% SC70-5
- Series：-
- Mfr：Texas Instruments
- 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 ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SC-70-5
- Grade：-
- Qualification：-
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Overview
The LM4040D30IDCKR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.048 V with an initial accuracy of ±1%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150 ppm/°C. It supports a maximum cathode current of 15 mA and requires a minimum operating current of 80 µA. Packaged in a compact SC-70-5 surface-mount case, it is designed for space-constrained applications requiring stable voltage regulation.
Feature Summary
- Provides a fixed 2.048 V reference output with high precision
- Operates as a shunt regulator with low micropower consumption
- Available in a small SC-70-5 surface-mount package
Applications
- Portable battery-powered instrumentation
- Data acquisition systems
- Microcontroller power supply monitoring
Procurement Notes
Verify the specific suffix IDCKR corresponds to the SC-70-5 package and tape-and-reel orientation. Confirm RoHS compliance status and lead times with authorized distributors, as availability may vary. Ensure the ordering part number matches the required accuracy grade and temperature range specifications for your design.
Selection Notes
Select this component when a 2.048 V reference is required in a minimal footprint. Compare against other LM4040 variants for different voltage outputs or accuracy grades. Consider the 15 mA load capability and 80 µA minimum current requirement for circuit biasing. Verify thermal performance within the specified -40°C to +85°C operating range.
Part Context
This device belongs to the LM4040 series of precision micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades. The D-grade indicates ±1% initial accuracy, while the C-grade offers ±0.5%. The IDCKR suffix specifies the SC-70-5 package and reel packaging format.
Replacement Considerations
LM4040D30IDCKRE4 is a direct replacement with updated environmental markings. LM4040D20IDCKR provides the same package but a 2.048 V output. LM4040C30IDCKR offers higher accuracy (0.5%) in the same package.
