LT6660JCDC-10

Overview

The LT6660JCDC-10 is a micropower series voltage reference from Analog Devices, housed in a compact 3-lead 2mm × 2mm × 0.75mm DFN package. It provides a fixed 10V output with an initial accuracy of ±0.4% and a maximum temperature coefficient of 20ppm/°C. The device operates within a supply voltage range of VOUT + 0.9V to 20V, drawing a typical supply current of 270µA at 25°C. It guarantees a sourcing output current of up to 20mA and features reverse-battery protection without requiring an external output compensation capacitor.

Feature Summary

• Curvature compensated design utilizing laser-trimmed precision thin-film resistors for high accuracy and low drift
• Reverse-battery protection prevents reverse current conduction
• Capable of supplying up to 20mA load current while maintaining excellent line regulation
• Eliminates the need for an output compensation capacitor

Applications

• Precision regulators
• A/D and D/A converters
• Handheld instruments
• Sensor modules

Procurement Notes

Verify the specific suffix codes against official documentation to confirm the exact temperature grade and packaging configuration. Ensure the input voltage remains within the specified operational limits relative to the output voltage. Confirm that the exposed pad is properly soldered to the PCB ground plane to ensure thermal performance and electrical connectivity as required by the datasheet specifications.

Selection Notes

Select this component when space constraints require a small DFN footprint alongside moderate precision requirements. The JCDC variant offers a balance between cost and performance, providing 0.4% accuracy suitable for applications where system calibration is feasible. Consider the dropout voltage characteristics and thermal dissipation capabilities when designing the power supply architecture.

Part Context

This part belongs to the LT6660 family of tiny micropower precision series references. The family includes HCDC (0.2% accuracy), JCDC (0.4% accuracy), and KCDC (0.5% accuracy) grades available in various voltage options including 2.5V, 3V, 3.3V, 5V, and 10V. These devices serve as space-saving alternatives to larger packages like the LT1460 while offering superior power efficiency compared to traditional shunt references.

Replacement Considerations

LT6660HCDC-10#TRPBF

FAQ

Does the LT6660JCDC-10 require an output capacitor?

No, the LT6660 family is designed to be stable without an output compensation capacitor, which helps minimize PC board space and settling time.

What is the minimum input-to-output voltage differential?

The minimum dropout voltage is 0.9V when the output current is 0mA, and increases to 1.4V when sourcing 10mA.