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Product Detailed Parameters
- Description：IC VREF SERIES 0.5% 3DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：0°C ~ 70°C (TA)
- 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-3.3#TRMPBF is a micropower series voltage reference from Analog Devices, housed in a 3-lead 2mm × 2mm × 0.75mm DFN package. It provides a fixed output of 3.3V with an initial accuracy tolerance of ±0.5%. The device features a maximum temperature coefficient of 50ppm/°C and guarantees up to 20mA of output current. Supply current is typically 180µA at 25°C. Operating input voltage ranges from VOUT + 0.9V to 20V, with a specified operating temperature range of –40°C to 85°C.
Feature Summary
- Curvature compensation combined with laser-trimmed thin-film resistors for high precision
- No external output compensation capacitor required for stability
- Reverse-battery protection prevents reverse current conduction
- Low IR reflow induced stress typical value of 0.02%
Applications
- Handheld Instruments
- Precision Regulators
- A/D and D/A Converters
- Power Supplies
- Sensor Modules
Procurement Notes
Verify the specific suffix #TRMPBF indicates lead-free tape and reel packaging. Confirm the KCDC designation corresponds to the 0.5% accuracy grade and 50ppm/°C temperature coefficient specifications. Ensure the component meets RoHS compliance requirements for the intended assembly process.
Selection Notes
Select this part when space constraints require a 2mm × 2mm footprint without output capacitors. Choose the KCDC grade if ±0.5% accuracy and 50ppm/°C drift are sufficient. Consider the HC or JC grades for tighter tolerances if budget allows. Verify input voltage headroom exceeds the dropout requirement of 0.9V at zero load.
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 utilizes curvature compensation to achieve low drift while maintaining extremely small physical dimensions suitable for portable electronics.
Replacement Considerations
LT6660JCDC-3.3#TRMPBF
FAQ
Does the LT6660KCDC-3.3 require an output capacitor?
No, the LT6660 family is designed to be stable with no output capacitor, making it ideal for applications where board space is limited.
What is the maximum output current guaranteed for this device?
The device guarantees an output current of up to 20mA with excellent line regulation characteristics.
