LT6660HCDC-5#TRPBF

Overview

The LT6660HCDC-5#TRPBF is a micropower precision series voltage reference from Analog Devices, housed in a compact 3-lead 2mm × 2mm × 0.75mm DFN package. It provides a fixed output voltage of 5V with an initial accuracy tolerance of ±0.2%. The device features a maximum temperature coefficient of 20ppm/°C and operates within an input voltage range of VOUT + 0.9V to 20V. Supply current is typically 200µA at 25°C, with a maximum of 240µA. It guarantees a sourcing output current of up to 20mA and includes reverse-battery protection.

Feature Summary

• Curvature compensation combined with laser-trimmed thin-film resistors ensures high accuracy and low drift across temperature ranges.
• Eliminates the need for an output compensation capacitor, reducing board space requirements and settling time.
• Reverse-battery protection prevents reverse current conduction, enhancing circuit reliability.
• Low IR reflow-induced stress minimizes output voltage shifts during standard PCB assembly processes.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates lead-free tape and reel packaging. Confirm the HC grade corresponds to the 0.2% accuracy and 20ppm/°C temperature coefficient specifications. Ensure the operating environment stays within the specified 0°C to 70°C range for guaranteed performance metrics. Check for any restricted substance compliance documentation required for your region.

Selection Notes

Select this component when space-constrained designs require a stable 5V reference without external output capacitors. The HC grade offers superior accuracy compared to JC or KC variants. Consider the dropout voltage requirements; the input must remain at least 0.9V above the output. Evaluate thermal management if junction temperatures may exceed 85°C due to high load currents or ambient heat.

Part Context

This part 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 in a minimal footprint suitable for portable and dense electronic applications.

Replacement Considerations

LT6660JCDC-5#TRPBF

FAQ

Does the LT6660HCDC-5 require an output capacitor for stability?

No, the LT6660 family is designed to be stable with no output capacitor, making it ideal for applications where board space is limited or fast settling times are required.

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

The minimum dropout voltage is 0.9V when the output current is 0mA. This increases to 1.3V at 10mA output current.