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Product Detailed Parameters
- Description：IC VREF SERIES 0.5% 3DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：3-WFDFN Exposed Pad
- Supplier Device Package：3-DFN (2x2)
- Grade：-
- Qualification：-
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Overview
The LT6660KCDC-2.5 is a micropower series voltage reference from Analog Devices, housed in a compact 3-lead 2mm × 2mm DFN package. It provides a fixed output of 2.5V with an initial accuracy tolerance of ±0.5%. The device features a maximum temperature coefficient of 50ppm/°C and guarantees a load current capability of up to 20mA. Supply current ranges from 145µA to 220µA depending on operating conditions. It operates within an input voltage range of VOUT + 0.9V to 20V and supports a specified temperature range of 0°C to 70°C.
Feature Summary
- Curvature compensation combined with laser-trimmed thin-film resistors ensures high precision and low drift.
- Eliminates the need for an external output compensation capacitor, reducing board space requirements.
- Reverse-battery protection prevents reverse current conduction.
- Low IR reflow induced stress minimizes output voltage shifts during soldering.
Applications
- Handheld Instruments
- Precision Regulators
- A/D and D/A Converters
- Power Supplies
- Hard Disk Drives
Procurement Notes
Verify the specific suffix #TR or #PBF against the required packaging format, as these denote tape and reel or lead-free configurations respectively. Confirm that the 0°C to 70°C specified temperature range aligns with the application environment, as wider ranges require different part numbers. Ensure the K-grade accuracy meets system error budgets without calibration.
Selection Notes
Select this component when a balance of low power consumption and moderate precision is required in a minimal footprint. The K-grade offers a cost-effective solution compared to H and J grades while maintaining stable performance. Consider the dropout voltage characteristics relative to the minimum supply voltage available in the design.
Part Context
This part belongs to the LT6660 family of tiny micropower precision series references. The family includes various voltage options (2.5V, 3V, 3.3V, 5V, 10V) and accuracy grades (H, J, K). The KCDC variant specifically denotes the 2.5V output with K-grade accuracy in the standard DFN-3 package.
Replacement Considerations
LT6660JCDC-2.5
FAQ
Does the LT6660KCDC-2.5 require an output capacitor?
No, the LT6660 family is designed to be stable without an output compensation capacitor, which helps save PCB space and allows for fast settling times.
What is the maximum output current guaranteed for this device?
The LT6660KCDC-2.5 is guaranteed to supply up to 20mA of load current.
