LT3092 - 200mA 2-Terminal Programmable Current Source
Features
- Programmable 2-Terminal Current Source
- Maximum Output Current: 200mA
- Wide Input Voltage Range: 1.2V to 40V
- Input/Output Capacitors Not Required
- Resistor Ratio Sets Output Current
- Initial Set Pin Current Accuracy: 1%
- Reverse-Voltage Protection
- Reverse-Current Protection
- <0.001%/V Line Regulation Typical
- Current Limit and Thermal Shutdown Protection
- Available in 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm × 3mm DFN Packages
AEC-Q100 data available for specific packages
Typical Application
Description
The LT3092 is a programmable 2-terminal current source. It requires only two resistors to set an output current between 0.5mA and 200mA. A multitude of analog techniques lend themselves to actively programming the output current. The LT3092 is stable without input and output capacitors, offering high DC and AC impedance. This feature allows operation in intrinsically safe applications.
The SET pin features 1% initial accuracy and low temperature coefficient. Current regulation is better than 10ppm/V from 1.5V to 40V.
The LT3092 can operate in a 2-terminal current source configuration in series with signal lines. It is ideal for driving sensors, remote supplies, and as a precision current limiter for local supplies.
Internal protection circuitry includes reverse-battery and reverse-current protection, current limiting and thermal limiting. The LT3092 is offered in the 8-lead TSOT-23, 3-lead SOT-223 and 8-lead 3mm × 3mm DFN packages.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LT3092EDD#PBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3092EDD#TRPBF | 3x3 DFN-8 | DD | E | 05-08-1698 | Yes |
| LT3092EST#PBF | SOT-223 | ST | E | 05-08-1630 | Yes |
| LT3092EST#TRPBF | SOT-223 | ST | E | 05-08-1630 | Yes |
| LT3092ETS8#PBF | SOT-23 | TS8 | E | 05-08-1637 | Yes |
| LT3092ETS8#TRMPBF | SOT-23 | TS8 | E | 05-08-1637 | Yes |
| LT3092ETS8#TRPBF | SOT-23 | TS8 | E | 05-08-1637 | Yes |
| LT3092IDD#PBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3092IDD#TRPBF | 3x3 DFN-8 | DD | I | 05-08-1698 | Yes |
| LT3092IST#PBF | SOT-223 | ST | I | 05-08-1630 | Yes |
| LT3092IST#TRPBF | SOT-223 | ST | I | 05-08-1630 | Yes |
| LT3092ITS8#PBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LT3092ITS8#TRMPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LT3092ITS8#TRPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LT3092MPST | SOT-223 | ST | MP | 05-08-1630 | No |
| LT3092MPST#PBF | SOT-223 | ST | MP | 05-08-1630 | Yes |
| LT3092MPST#TR | SOT-223 | ST | MP | 05-08-1630 | No |
| LT3092MPST#TRPBF | SOT-223 | ST | MP | 05-08-1630 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LT3092EDD#PBF | 3x3 DFN-8 | E | $2.36 | $1.65 | Yes | |
| LT3092EDD#TRPBF | 3x3 DFN-8 | E | $1.71 | Yes | ||
| LT3092EST#PBF | SOT-223 | E | $2.50 | $1.75 | Yes | |
| LT3092EST#TRPBF | SOT-223 | E | $1.81 | Yes | ||
| LT3092ETS8#PBF | SOT-23 | E | $2.36 | Yes | ||
| LT3092ETS8#TRMPBF | SOT-23 | E | $2.36 | $1.70 | Yes | |
| LT3092ETS8#TRPBF | SOT-23 | E | $2.36 | $1.65 | Yes | |
| LT3092IDD#PBF | 3x3 DFN-8 | I | $2.62 | $1.83 | Yes | |
| LT3092IDD#TRPBF | 3x3 DFN-8 | I | $1.89 | Yes | ||
| LT3092IST#PBF | SOT-223 | I | $2.77 | $1.94 | Yes | |
| LT3092IST#TRPBF | SOT-223 | I | $2.00 | Yes | ||
| LT3092ITS8#PBF | SOT-23 | I | $2.62 | Yes | ||
| LT3092ITS8#TRMPBF | SOT-23 | I | $2.62 | $1.88 | Yes | |
| LT3092ITS8#TRPBF | SOT-23 | I | $2.62 | $1.83 | Yes | |
| LT3092MPST | SOT-223 | MP | $6.76 | $4.73 | No | |
| LT3092MPST#PBF | SOT-223 | MP | $6.76 | $4.73 | Yes | |
| LT3092MPST#TR | SOT-223 | MP | $4.79 | No | ||
| LT3092MPST#TRPBF | SOT-223 | MP | $4.79 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1531A | LT3092EDD Demo Board | 200mA 2-Terminal Programmable Current Source | $75.00 | |
| DC2132A | 24V 3A Constant Voltage, Constant Current Bench Supply Featuring LT3081, LT8612, LT3092 | $200.00 | |
| Buy Now | |||
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation page
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LT3092IST#PBF | SOT-223 | I | $2.77 | $1.94 | Yes | |
| LT3092IST#TRPBF | SOT-223 | I | $2.00 | Yes | ||
| LT3092ITS8#PBF | SOT-23 | I | $2.62 | Yes | ||
| LT3092ITS8#TRMPBF | SOT-23 | I | $2.62 | $1.88 | Yes | |
| LT3092ITS8#TRPBF | SOT-23 | I | $2.62 | $1.83 | Yes | |
| LT3092MPST#PBF | SOT-223 | MP | $6.76 | $4.73 | Yes | |
| LT3092MPST#TRPBF | SOT-223 | MP | $4.79 | Yes | ||
| Buy Now • Request Samples | ||||||
Applications
- 2-Terminal Floating Current Source
- GND Referred Current Source
- Variable Current Source
- In-Line Limiter
- Intrinsic Safety Circuits
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Design Tools
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LT3092
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
