Texas Instruments LM4040AIM3-2.5/NOPB Precision Shunt Voltage Reference IC, 2.5

The Texas Instruments LM4040AIM3-2.5/NOPB is a precision micropower shunt voltage reference integrated circuit, designed for applications where space is at a premium. Its advanced internal architecture eliminates the requirement for an external output capacitor, guaranteeing stability with any capacitive load and simplifying circuit design significantly. This makes it exceptionally easy to incorporate into your projects.

This device is part of a versatile family offering several fixed reverse breakdown voltages, including 2.048V, 2.5V, 3.0V, 4.096V, 5.0V, 8.192V, and 10.0V. The LM4040AIM3-2.5/NOPB version provides a precise 2.5V reference. It operates with a low minimum current of 60µA, making it ideal for battery-powered and micropower systems, while supporting a maximum operating current of 15mA. A-grade devices achieve a high initial accuracy of better than ±0.1% at 25°C, achieved through precise fuse and zener-zap trimming during manufacturing.

Key Features & Specifications

• No Output Capacitor Required: Simplifies board layout and reduces component count.
• Tolerates Capacitive Loads: Remains stable regardless of the capacitive load on its output.
• Band-gap Reference with Curvature Correction: Provides a low temperature coefficient of ±20ppm/°C for stable performance across a wide temperature range.
• Low Dynamic Impedance: Ensures the reverse breakdown voltage remains accurate over varying operating temperatures and currents.
• Green Product: Manufactured without antimony or bromine (No Sb/Br).
• Compact SOT-23-3 Package: The surface-mount package is only 15mm deep, 33mm wide, and 43mm high, perfect for space-constrained designs.
• Wide Operating Temperature Range: Functions reliably from -40°C to +85°C.
• Automotive Qualified: Meets the AEC-Q100 standard for use in automotive applications.

Handling Note: This device*