LM4040B25IDCKRG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The LM4040B25IDCKRG4 is a precision micropower shunt voltage reference with a fixed 2.5V output and tight ±0.2% initial accuracy. It operates as a two-terminal shunt device with ultra-low power consumption in a compact SOT23-5 package. Available from stock globally with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LM4040B25IDCKRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 2.500V output with ±0.2% initial accuracy (2.495V–2.505V range) for precision analog signal chain applications
- Two-terminal shunt topology requires only a single series resistor, simplifying circuit design and reducing BOM count
- Micropower operation enables long battery life in portable and energy-harvesting applications
- SOT23-5 package provides a tiny footprint ideal for space-constrained analog and mixed-signal PCBs
Applications
The LM4040B25IDCKRG4 is used as a stable 2.5V reference in ADC and DAC circuits, precision op-amp circuits, and battery-powered instrumentation where minimal current consumption is critical. Its two-terminal shunt configuration makes it straightforward to integrate into voltage dividers, comparator thresholds, and sensor conditioning circuits across industrial, consumer, and medical electronics.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 2.505V |
| Output Voltage-Min | 2.495V |
| Output Voltage-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP5/6,.08 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temp Coef of Voltage-Max | 100ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.2% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage accuracy of the LM4040B25IDCKRG4?
The LM4040B25IDCKRG4 provides a nominal output of 2.500V with an initial accuracy of ±0.2%, corresponding to a voltage range of 2.495V to 2.505V. This tight tolerance makes it suitable for precision analog measurements without external trimming.
How does a shunt voltage reference like the LM4040B25IDCKRG4 differ from a series reference?
A shunt voltage reference operates in parallel with the load, similar to a zener diode, and requires a series resistor to set the operating current. This is simpler and more compact than a series reference, though less efficient when load current varies widely. The LM4040B25IDCKRG4 is a two-terminal device, so no enable pin or bypass capacitor is required.
What package does the LM4040B25IDCKRG4 use?
The LM4040B25IDCKRG4 is housed in a SOT23-5 (5-pin small-outline transistor) package made from plastic/epoxy. This tiny package measures only a few millimeters and is compatible with standard SMT assembly, making it easy to place on dense PCBs.
Is the LM4040B25IDCKRG4 suitable for battery-powered applications?
Yes, its micropower design ensures very low quiescent current consumption, extending battery run time in portable meters, wireless sensors, and handheld instruments. The 2.5V reference output is also directly usable with many 3.3V-powered ADCs and DACs in low-power IoT and medical devices.
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