LT6660JCDC-3#TRPBF

Overview

The LT6660JCDC-3#TRPBF is a micropower series voltage reference from Analog Devices, offering a fixed 3V output with ±0.4% initial accuracy and a maximum temperature coefficient of 20ppm/°C. It operates within an input voltage range of VOUT + 0.9V to 20V, drawing a typical supply current of 180µA. The device guarantees 20mA output current and features reverse-battery protection. Packaged in a space-saving 3-lead 2mm × 2mm DFN, it requires no output compensation capacitor.

Feature Summary

• Curvature compensation and laser-trimmed resistors ensure high precision and low drift.
• Reverse-battery protection prevents reverse current conduction.
• Stable operation without requiring an output compensation capacitor.
• Low IR reflow-induced stress maintains output stability during assembly.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF confirms lead-free tape and reel packaging. Confirm the JCDC designation indicates the 0.4% accuracy grade and 20ppm/°C temperature coefficient for the 3V option. Ensure the operating temperature range matches the application requirements, as standard parts are specified for 0°C to 70°C while wider ranges require consultation.

Selection Notes

Select this part when a compact footprint is critical alongside moderate precision requirements. The JCDC grade offers a balance between cost and performance compared to the HCDC (0.2%) and KCDC (0.5%) variants. Consider the 20mA sourcing capability for driving downstream loads directly. Evaluate thermal management if junction temperatures may exceed 85°C due to hysteresis effects.

Part Context

This component belongs to the LT6660 family of tiny micropower precision series references. The family shares a common architecture utilizing curvature compensation and thin-film resistors. Variants differ primarily by output voltage options (2.5V, 3V, 3.3V, 5V, 10V) and accuracy grades (HC, JC, KC). All share the same 3-lead DFN package and fundamental electrical characteristics.

Replacement Considerations

LT6660HCDC-3#TRPBF

FAQ

Does the LT6660JCDC-3 require an output capacitor?

No, the LT6660 family is designed to be stable without an output compensation capacitor, making it suitable for applications where board space or total capacitance must be minimized.

What is the minimum input-output voltage differential?

The minimum dropout voltage is 0.9V at zero load current and increases to approximately 1.3V–1.4V at higher load currents depending on the specific output voltage option.