LT1790ACS6-5#TRMPBF

Voltage Reference Overview

The LT1790ACS6-5#TRMPBF is a micropower low dropout series voltage reference from Analog Devices, housed in a 6-lead plastic TSOT-23 package. It provides a nominal output voltage of 5V with an initial accuracy of 0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 5.5V to 18V and draws a maximum no-load supply current of 80µA. Designed for commercial applications, it functions reliably between 0°C and 70°C.

Voltage Reference Feature Summary

• Utilizes curvature compensation and trimmed precision thin-film resistors to achieve high accuracy and low drift.
• Capable of both sourcing and sinking current, allowing operation as a micropower negative voltage reference.
• Features post-package trimming to minimize thermally induced hysteresis and enhance output stability.

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 #TRMPBF confirms tape and reel packaging containing 500 units. Ensure the 'S6' designation matches the required 6-lead TSOT-23 footprint. Confirm the 'A' grade meets the 0.05% accuracy requirement and that the commercial temperature range aligns with system specifications.

Voltage Reference Selection Notes

Select this component when low quiescent current and compact size are critical for battery-powered designs. The A-grade specification ensures tighter tolerance compared to B-grade options. Verify input voltage remains above the minimum dropout threshold for the desired load current to maintain regulation.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. It shares architectural similarities with other members like the LT1790ACS6-2.5 but differs in its fixed 5V output setting. The family emphasizes low power dissipation while maintaining precision suitable for sensitive analog circuits.

Voltage Reference Replacement Considerations

LT1790AIS6-5#TRMPBF offers the same electrical performance in an industrial temperature range (-40°C to 85°C). LT1790BCS6-5 variants provide lower initial accuracy (0.1%) at potentially reduced cost. Cross-reference pinouts and thermal characteristics before substitution.