LT6660HCDC-3#TRMPBF

Overview

The LT6660HCDC-3#TRMPBF is a micropower series voltage reference from Analog Devices, housed in a 3-lead 2mm × 2mm × 0.75mm DFN package. It provides a fixed output voltage of 3V with an initial accuracy tolerance of ±0.2%. The device features a maximum temperature coefficient of 20ppm/°C and guarantees an output current of up to 20mA. Supply current ranges from 145µA to 220µA depending on operating conditions. It operates within an input voltage range of VOUT + 0.9V to 20V and supports specified temperatures from 0°C to 70°C.

Feature Summary

• Curvature compensation combined with laser-trimmed thin-film resistors for high precision and low drift
• No external output compensation capacitor required, enabling fast settling times and minimal board space usage
• Reverse-battery protection prevents reverse current conduction
• Low IR reflow induced stress ensures stability during surface mount assembly

Applications

• Handheld Instruments
• Precision Regulators
• A/D and D/A Converters
• Power Supplies
• Sensor Modules

Procurement Notes

Verify the specific suffix #TRMPBF indicates Lead Free Tape and Reel packaging as per manufacturer ordering options. Confirm the HC grade corresponds to the 0.2% accuracy and 20ppm/°C temperature coefficient specifications. Ensure the component matches the 3-lead DFN physical dimensions and pinout configuration before integration into the design.

Selection Notes

Select this part when a compact footprint is critical alongside high accuracy requirements. The HC grade offers the tightest tolerance within the LT6660 family. Consider the dropout voltage characteristics relative to the minimum input supply. Evaluate thermal management needs if operating near maximum load currents to maintain junction temperature limits.

Part Context

This component belongs to the LT6660 family of tiny micropower precision series references. It serves as a space-saving alternative to larger packages like the LT1460 while maintaining comparable output current capabilities. The family utilizes curvature compensation technology to achieve low temperature coefficients across various fixed voltage options including 2.5V, 3V, 3.3V, 5V, and 10V.

Replacement Considerations

LT6660JCDC-3#TRMPBF

FAQ

Does the LT6660 require an output capacitor for stability?

No, the LT6660 does not require an output compensation capacitor, which allows for faster settling times and reduced PCB area.

What is the maximum output current guaranteed for this device?

The LT6660 guarantees an output current of up to 20mA with excellent line regulation characteristics.