LT6660HCDC-2.5#TRPBF

Overview

The LT6660HCDC-2.5#TRPBF is a micropower series voltage reference from Analog Devices, housed in a 3-lead 2mm × 2mm DFN package. It provides a fixed output voltage of 2.5V with an initial accuracy tolerance of ±0.2%. The device features a maximum temperature coefficient of 20ppm/°C and operates within a specified temperature range of 0°C to 70°C. It supports a supply current ranging from 115µA to 175µA and can deliver up to 20mA of output current. The input voltage range spans from VOUT + 0.9V to 20V.

Feature Summary

• Curvature compensation combined with laser-trimmed thin-film resistors ensures high precision and low drift.
• Eliminates the need for an output compensation capacitor, reducing board space requirements.
• Reverse-battery protection prevents reverse current conduction.
• Offers significant power dissipation advantages over shunt references by not idling load current.

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. Confirm the HC grade corresponds to the 0.2% accuracy and 20ppm/°C temperature coefficient specifications. Ensure the operating environment remains within the 0°C to 70°C range defined for this part variant.

Selection Notes

Select this component when a compact footprint is required alongside high accuracy. The HC grade offers superior initial accuracy compared to JC or KC variants. Consider the 20mA sourcing capability for applications requiring moderate load currents without external pass transistors.

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 across various voltage options.

Replacement Considerations

LT6660JCDC-2.5#TRPBF

FAQ

Does the LT6660 require an output capacitor?

No, the LT6660 does not require an output compensation capacitor, making it suitable for applications where PC board space is limited or fast settling is demanded.

What is the minimum input-output voltage differential?

The dropout voltage is typically 0.9V at zero load current and increases to approximately 1.3V to 1.4V when sourcing 10mA.