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

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

For complete and up to date package information and drawings, please refer to our packaging page

SOT-23, DFN-8, SOT-223

LT3092 Package Drawing
LT3092 Package Drawing
LT3092 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT3092EDD#PBF DFN 8 E $2.36 $1.65 View
LT3092EDD#TRPBF DFN 8 E $1.71 View
LT3092EST#PBF SOT-223 3 E $2.50 $1.75 View
LT3092EST#TRPBF SOT-223 3 E $1.81 View
LT3092ETS8#PBF SOT-23 8 E $2.36 View
LT3092ETS8#TRMPBF SOT-23 8 E $2.36 $1.70 View
LT3092ETS8#TRPBF SOT-23 8 E $2.36 $1.65 View
LT3092IDD#PBF DFN 8 I $2.62 $1.83 View
LT3092IDD#TRPBF DFN 8 I $1.89 View
LT3092IST#PBF SOT-223 3 I $2.77 $1.94 View
LT3092IST#TRPBF SOT-223 3 I $2.00 View
LT3092ITS8#PBF SOT-23 8 I $2.62 View
LT3092ITS8#TRMPBF SOT-23 8 I $2.62 $1.88 View
LT3092ITS8#TRPBF SOT-23 8 I $2.62 $1.83 View
LT3092MPST SOT-223 3 MP $6.76 $4.73 View
LT3092MPST#PBF SOT-223 3 MP $6.76 $4.73 View
LT3092MPST#TR SOT-223 3 MP $4.79 View
LT3092MPST#TRPBF SOT-223 3 MP $4.79 View
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* 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
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Click here to view our complete list of demo boards

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

LTspiceIV

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LT3092

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