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
Designed for Automotive and Transportation Applications
AEC-Q100 data available for specific packages


Typical Application

LT3092 Typical Application
LT3092 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


LT3092 Package Drawing
LT3092 Package Drawing
LT3092 Package Drawing

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 NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

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
Click here to view our complete list of demo boards

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 NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Applications

  • 2-Terminal Floating Current Source
  • GND Referred Current Source
  • Variable Current Source
  • In-Line Limiter
  • Intrinsic Safety Circuits

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