LT6660KCDC-5

Overview

The LT6660KCDC-5 is a micropower series voltage reference from Analog Devices, housed in a 3-lead 2mm × 2mm × 0.75mm DFN package. It provides a fixed 5V output with an initial accuracy of ±0.5% and a maximum temperature coefficient of 50ppm/°C over the 0°C to 70°C specified range. The device operates with an input voltage between VOUT + 0.9V and 20V, drawing a typical supply current of 200µA at 25°C. It guarantees a sourcing output current of up to 20mA without requiring an external output compensation capacitor.

Feature Summary

• Curvature compensation and laser-trimmed thin-film resistors ensure high precision and low drift.
• Reverse-battery protection prevents reverse current conduction.
• Eliminates the need for an output compensation capacitor, reducing board space and settling time.
• Low IR reflow induced stress maintains stability during surface mount assembly.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates lead-free tape and reel packaging when ordering. Confirm that the KCDC designation corresponds to the required 0.5% accuracy and 50ppm/°C temperature coefficient specifications for your application requirements. Ensure the operating environment remains within the 0°C to 70°C specified temperature range for guaranteed performance parameters.

Selection Notes

Select this component when a compact footprint is critical alongside moderate precision requirements. The LT6660KCDC-5 offers a balance of low power consumption and sufficient drive capability for loads up to 20mA. Consider the LT6660HCDC-5 or LT6660JCDC-5 if tighter accuracy or lower temperature coefficients are necessary for the design.

Part Context

This part belongs to the LT6660 family of tiny micropower precision series references. The family includes options for 2.5V, 3V, 3.3V, 5V, and 10V outputs across HC, JC, and KC grades. All variants share the same 3-lead DFN package and fundamental architecture, differing primarily in initial accuracy and temperature coefficient specifications.

Replacement Considerations

LT6660HCDC-5#TRPBF

FAQ

Does the LT6660KCDC-5 require an output capacitor?

No, the LT6660 family is designed to be stable without an output compensation capacitor, which aids in fast settling and minimizes PCB space usage.

What is the minimum input-output voltage differential?

The minimum dropout voltage is typically 0.9V at no load and increases to approximately 1.4V when sourcing 10mA.