LT6660JCDC-2.5#TRMPBF

Overview

The LT6660JCDC-2.5#TRMPBF is a micropower series voltage reference from Analog Devices, housed in a 3-lead 2mm × 2mm DFN package. It provides a fixed output of 2.5V 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 and supports up to 20mA output current. Supply current is typically 145µA at 25°C. It features reverse-battery protection and requires no output compensation capacitor.

Feature Summary

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

Applications

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

Procurement Notes

Verify the specific suffix #TRMPBF indicates lead-free tape and reel packaging. Confirm the JCDC designation corresponds to the 0.4% accuracy grade and 20ppm/°C temperature coefficient. Ensure the component meets RoHS compliance requirements for your assembly process. Check for any obsolescence notices or limited availability status directly from Analog Devices before finalizing procurement plans.

Selection Notes

Select this part when a compact footprint is critical but higher precision than shunt references is required. The JCDC grade offers a balance between cost and performance, suitable for applications needing 0.4% accuracy. Consider the 20mA sourcing capability for driving moderate loads without external transistors. Evaluate thermal management if operating near maximum power dissipation limits.

Part Context

This component belongs to the LT6660 family of tiny micropower precision series references. It serves as a space-saving alternative to larger packages like the LT1460. The family includes HC (0.2%), JC (0.4%), and KC (0.5%) accuracy grades across various voltage options including 2.5V, 3V, 3.3V, 5V, and 10V.

Replacement Considerations

LT6660HCDC-2.5#TRMPBF offers tighter 0.2% accuracy. LT6660KCDC-2.5#TRMPBF provides lower cost with 0.5% accuracy. LT1460 is a larger package alternative with similar functionality.