TI LM4040AIM3 Precision Micropower Shunt Voltage Reference, 5V, SOT-23-3

Texas Instruments LM4040 Precision Micropower Shunt Voltage Reference – 5V Fixed Output

The Texas Instruments LM4040AIM3-5.0 is a precision micropower shunt voltage reference, specifically engineered for space-critical applications. Its advanced design removes the requirement for an external stabilizing capacitor, while maintaining stability with any capacitive load – making it exceptionally straightforward to integrate into your designs.

This fixed 5V reference offers a wide range of operational flexibility. With a minimum operating current of 60µA (for the 2.5V version) and a maximum of 100µA (for the 10.0V version), all versions support a maximum current of 15mA. The LM4040-N utilises fuse and zener-zap reverse breakdown voltage trim during wafer sort, ensuring prime parts achieve an accuracy better than ±0.1% (A grade) at 25°C. The bandgap reference temperature drift curvature correction and low dynamic impedance guarantee stable reverse breakdown voltage accuracy across a broad temperature and current range.

This voltage reference comes in a compact SOT-23 package and is qualified to AEC-Q100 grades 1 and 3, making it suitable for demanding automotive applications. It is a green product, containing no antimony or bromine, and is free from SVHC. The device tolerates capacitive loads and does not require an output capacitor, simplifying your BOM and board layout.

Key Features & Benefits

• Precision micropower shunt voltage reference – ideal for space-constrained designs
• Fixed 5V reverse breakdown voltage
• No external capacitor required – simplifies design
• Tolerates any capacitive load – excellent stability
• High accuracy: ±0.1% (A grade) at 25°C
• Wide operating current range: 60µA to 15mA
• Surface mount package: SOT-23
• Automotive qualified: AEC-Q100 grades 1 and 3
• Green product: No Sb/Br, SVHC-free

The **LM4040AIM3-5