LM4050AIM3-2.5

The LM4050AIM3-2.5 is a fixed 2.5 V shunt voltage reference from TI, in the AIM3 3‑pin package. It provides a precise 2.5 V reference for precision analog circuits (e.g., ADC/DAC references, voltage regulation, instrumentation).
How it works: you apply supply current through a bias resistor to the device; it clamps its output at ~2.5 V relative to ground as long as the cathode current stays within the specified range.
Key points:
- Fixed 2.5 V reference with low noise and good stability.
- Simple, compact shunt regulator suitable for low‑power, space‑constrained designs.
- Requires only a resistor network to set operating current; output used as reference.
- Typical specs to check in the datasheet: accuracy, temperature coefficient, dynamic impedance, operating/current range, and maximum cathode current.
- Package: AIM3 (small SMD, 3 pins).
For exact values (pinout, current ranges, accuracy and tempco), consult the TI datasheet and application notes.

LM4050AIM3-2.5 features:
- Fixed 2.5 V shunt voltage reference
- Micropower operation with low quiescent current
- Low dynamic impedance with strong line/load regulation
- Good temperature stability and long-term accuracy
- Wide operating temperature range (-40°C to +125°C)
- 3-pin AIM3 package (compact SC-70/SOT-23-3)
- No external resistor network needed to set voltage
- Robust in typical consumer/applications; suitable for precision references in ADC/DACs and voltage reference loops

- Pin count: 3 pins (SC-70/SOT-23-3 package)
- Function: Fixed 2.5 V shunt voltage reference. It maintains a stable 2.5 V across its terminals by shunting current to ground. Pin 1 = Anode (ground), Pin 2 = Cathode (Vref/output), Pin 3 = No Connect.

- Manufacturer: Texas Instruments Incorporated (TI).
- Company type: American multinational semiconductor design and manufacturing company that specializes in analog and mixed-signal integrated circuits and other semiconductors; headquartered in Dallas, Texas.

LM4050AIM3-2.5 is a fixed 2.5V shunt voltage reference. Common application areas:
- Precision reference for ADC/DAC front ends and op-amp circuits
- Sensor biasing and calibration in instrumentation and data-acquisition systems
- Reference for LDO/shunt regulators in battery-powered devices
- Calibration/reference circuits in meters, test equipment
- Portable/low-power electronics requiring a stable reference
- Automotive/industrial/medical electronics needing low-noise, temperature-stable reference

SC-70 3‑pin package (SOT‑23‑3).