LM4040DIM3-2.5/NOPB Power Path Management IC Voltage References PREC MICROPWR SHUNT VLTG REF

1 Features

• SOT-23 AEC Q-100 Grades 1 and 3 Available

• Small Packages: SOT-23, TO-92, and SC70

• No Output Capacitor Required

• Tolerates Capacitive Loads

• Fixed Reverse Breakdown Voltages of 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V

• Key Specifications (2.5-V LM4040-N)

  • – Output Voltage Tolerance (A Grade, 25°C): ±0.1% (Maximum)

  • – Low Output Noise (10 Hz to 10 kHz): 35 μVrms (Typical)

  • – Wide Operating Current Range: 60 μA to 15 mA

  • – Industrial Temperature Range: −40°C to +85°C

  • – Extended Temperature Range: −40°C to +125°C

  • – Low Temperature Coefficient: 100 ppm/°C (Maximum)

2 Applications

• Portable, Battery-Powered Equipment

• Data Acquisition Systems

• Instrumentation

• Process Controls

• Energy Management

• Product Testing

• Automotives

• Precision Audio Components

3 Description

Ideal for space-critical applications, the LM4040-N precision voltage reference is available in the sub- miniature SC70 and SOT-23 surface-mount package. The advanced design of the LM4040-N eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4040-N easy to use. Further reducing design effort is the availability of several fixed reverse breakdown voltages: 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. The minimum operating current increases from 60 μA for the 2.5-V LM4040-N to 100 μA for the 10-V LM4040-N. All versions have a maximum operating current of 15 mA.

The LM4040-N uses a fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C. Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.

Also available is the LM4041-N with two reverse breakdown voltage versions: adjustable and 1.2 V. See the LM4041-N data sheet (SNOS641).

Device Information