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Product Detailed Parameters
- Description：IC VREF SERIES 0.5% 3DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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#TRPBF is a micropower 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 3.3V with an initial accuracy tolerance of ±0.5%. The device features a maximum temperature coefficient of 50ppm/°C and guarantees a supply current of up to 220µA. It supports a load current of 20mA and operates within an input voltage range of VOUT + 0.9V to 20V.
Feature Summary
- Curvature compensation combined with laser-trimmed thin-film resistors for high precision
- Eliminates the need for an external output compensation capacitor
- Reverse-battery protection prevents reverse current conduction
Applications
- Handheld Instruments
- Precision Regulators
- A/D and D/A Converters
- Power Supplies
- Hard Disk Drives
- Sensor Modules
Procurement Notes
Verify the specific suffix #TRPBF indicates lead-free tape and reel packaging. Confirm the KCDC designation corresponds to the 3.3V output with ±0.5% accuracy and 50ppm/°C temperature coefficient. Ensure the component meets the specified operating temperature range of 0°C to 70°C for the standard grade.
Selection Notes
Select this part when space constraints require a 2mm × 2mm footprint without sacrificing precision. It serves as a low-power alternative to shunt references by eliminating idle current waste. Consider the 50ppm/°C drift if higher stability than the HC or JC grades is not required.
Part Context
This component belongs to the LT6660 family of tiny micropower precision series references. The family offers various output voltages including 2.5V, 3V, 3.3V, 5V, and 10V across different accuracy grades (HC, JC, KC). It is designed as a space-saving alternative to larger packages like the LT1460 while maintaining comparable output current capabilities.
Replacement Considerations
LT6660JCDC-3.3#TRPBF
FAQ
Does the LT6660KCDC-3.3#TRPBF require an output capacitor?
No, the LT6660 family is designed to be stable without an output compensation capacitor, which saves PCB space and allows for fast settling times.
What is the minimum input-to-output voltage differential?
The minimum dropout voltage is typically 0.9V at zero load current and increases to approximately 1.4V at a 10mA load current.
