LT1790BIS6-2.5#TRPBF

Voltage Reference Overview

The LT1790BIS6-2.5#TRPBF is a micropower low dropout series voltage reference from Analog Devices, housed in a 6-lead plastic TSOT-23 package. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 25ppm/°C. The device operates within a supply voltage range of 3V to 18V and draws a maximum supply current of 80µA. It supports both sourcing up to 5mA and sinking up to 3mA of load current. The specified operating temperature range is –40°C to 85°C.

Voltage Reference Feature Summary

• Curvature compensation and post-package trimming ensure high output accuracy and low drift.
• Capable of sourcing and sinking current for positive or negative reference applications.
• Low thermal hysteresis minimizes output shifts during temperature cycling.
• Small ThinSOT™ package size suits battery-operated systems.

Voltage Reference Applications

• Handheld Instruments
• Negative Voltage References
• Industrial Control Systems
• Data Acquisition Systems
• Battery-Operated Equipment

Voltage Reference Procurement Notes

Verify the specific ordering suffix matches the required tape and reel packaging configuration. Confirm that the B grade accuracy and industrial temperature range align with design specifications. Ensure compatibility with the 6-lead TSOT-23 footprint during PCB layout review.

Voltage Reference Selection Notes

Select this component when a fixed 2.5V reference with ±0.1% accuracy is required in a compact surface-mount package. It is suitable for designs needing low quiescent current and bidirectional current capability. Consider the 25ppm/°C temperature coefficient for wide-range thermal environments.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The family offers various output voltages and accuracy grades (A and B) across commercial and industrial temperature ranges. The LT1790 combines precision thin-film resistors with curvature compensation for stable performance.

Voltage Reference Replacement Considerations

LT1790BCS6-2.5#TRPBF

Voltage Reference FAQ

Can the LT1790BIS6-2.5#TRPBF operate as a negative voltage reference?

Yes, because it can sink current, it can function as a micropower negative voltage reference with the same performance characteristics as a positive reference.

What is the minimum input voltage required for the 2.5V output version?

The minimum operating voltage is 2.95V at no load and 2.90V when sourcing 5mA of output current.