LM4040DIM3-2.5+ Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
The LM4040DIM3-2.5+ is a precision 2.5V shunt voltage reference from Texas Instruments designed for portable and battery-powered applications. It provides a stable 2.5V reference voltage with low temperature drift in a compact 3-pin SOT-23 package. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- LM4040DIM3-2.5+ Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Precision 2.5V shunt voltage reference with low temperature coefficient for stable output
- 3-pin SOT-23 package enabling minimal PCB footprint in portable device designs
- Shunt (parallel) topology suitable for applications with a constant current source
- Low operating current enabling use in battery-powered and low-power systems
Applications
The LM4040DIM3-2.5+ is used as a precision voltage reference in ADC and DAC circuits, portable instrumentation, and battery-powered measurement systems requiring a stable 2.5V reference. Its small SOT-23 package makes it ideal for space-constrained designs in handheld devices, wearables, and IoT sensor nodes. The device is also commonly found in calibration circuits, signal conditioning boards, and precision power supply designs where accurate voltage reference is critical.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM4040DIM3-2.5+:
Frequently Asked Questions
What is the output voltage of the LM4040DIM3-2.5+?
The LM4040DIM3-2.5+ provides a fixed 2.5V output reference voltage. This precise voltage is maintained with low temperature drift, making it suitable for use as a reference in analog-to-digital converters, digital-to-analog converters, and precision measurement circuits in industrial and consumer electronics applications.
What is the difference between a shunt voltage reference and a series voltage reference?
A shunt voltage reference like the LM4040DIM3-2.5+ is connected in parallel with the load and requires a current-limiting resistor in series with the supply. It draws whatever current is needed to maintain the reference voltage. In contrast, a series reference is placed in the supply path. Shunt references are simpler and often preferred in low-power or battery applications.
What package does the LM4040DIM3-2.5+ use?
The LM4040DIM3-2.5+ is housed in a 3-pin SOT-23 surface-mount package. This ultra-compact package is one of the smallest available for discrete and reference ICs, making it ideal for miniaturized PCB designs in portable electronics, IoT devices, and handheld instrumentation.
Is the LM4040DIM3-2.5+ suitable for portable and battery-powered designs?
Yes, the LM4040DIM3-2.5+ is well-suited for portable and battery-powered applications due to its low operating current, compact 3-pin SOT-23 package, and stable 2.5V output. These characteristics help extend battery life while providing a reliable voltage reference for ADCs, sensor interfaces, and precision analog circuits in low-power systems.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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