MICROCHIP LM4040 Voltage Reference, Shunt, 2.5V, SOT-23-3
MICROCHIP LM4040 2.5V precision shunt voltage reference in SOT-23-3 package. Features 0.5% accuracy, ±20ppm/°C tempco.
The MICROCHIP LM4040 is a precision micropower shunt voltage reference, providing a stable and accurate 2.5V output. Designed for applications requiring reliable voltage biasing, its fixed shunt configuration and high initial accuracy of 0.5% ensure consistent performance in a compact footprint.
Operating over a wide temperature range from -40°C to 85°C, this device features a low temperature coefficient of ±20ppm/°C, minimising output drift and enhancing stability in varying environmental conditions. Its surface-mount SOT-23-3 package is ideal for space-constrained PCB designs, making it a versatile choice for modern electronics.
Key Features and Benefits:
- Precision Voltage Reference: Delivers a fixed 2.5V reference with excellent accuracy for critical analogue and digital circuits.
- Micropower Operation: Efficient design is suitable for battery-powered and low-power devices.
- Excellent Temperature Stability: The low ±20ppm/°C coefficient ensures reliable performance across the full operating temperature range.
- Compact Surface-Mount Package: The SOT-23-3 case style allows for high-density board layouts and automated assembly.
- Wide Operating Range: Functions reliably in industrial environments from -40°C to 85°C.
This component is an essential building block for designers seeking a dependable voltage reference for precision measurement, data acquisition, and power management systems.
- Precision analogue circuits
- Data acquisition systems
- Battery-powered equipment
- Portable instrumentation
- Reference Voltage: 2.5V
- Initial Accuracy: 0.5%
- Temperature Coefficient: ±20ppm/°C
- IC Case / Package: SOT-23-3
- IC Mounting: Surface Mount
- Operating Temperature Range: -40°C to 85°C
- Height: 1.15 mm
- Width: 2.92 mm
- Depth: 1.30 mm
- Reference Voltage Max: 2.5V
- of Pins: 3Pins
- Operating Temperature Min: -40°C
- Operating Temperature Max: 85°C
- SVHC: No SVHC (04-Feb-2026)
- Voltage Reference Case Style: SOT-23
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