LT1086 - 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V


  • 3-Terminal Adjustable or Fixed 2.85V, 3.3V, 3.6V, 5V, 12V
  • Output Current of 1.5A, (0.5A for LT1086H)
  • Operates Down to 1V Dropout
  • Guaranteed Dropout Voltage at Multiple Current Levels
  • Line Regulation: 0.015%
  • Load Regulation: 0.1%
  • 100% Thermal Limit Functional Test
  • Ripple Rejection >75dB
  • Available in 3-Pin TO-220 and 3-Pin DD Package

Typical Application

LT1086 Typical Application
LT1086 Typical Application


The LT1086 is designed to provide up to 1.5A output current. All internal circuitry is designed to operate down to 1V input-to-output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at several operating points up to a maximum of 1.5V at maximum output current. Dropout decreases at lower load currents. On-chip trimming adjusts the reference/ouput voltage to 1%. Current limit is also trimmed,minimizing the stress on both the regulator and powersource circuitry under overload conditions.

The LT1086 is pin compatible with older 3-terminal adjustableregulators. A minimum 10uF output capacitor isrequired on these devices.

The LT1086 offers excellent line and load regulation specifications and ripple rejection exceeds 75dB even at the maximum load current of 1.5A. The LT1086 is floating architecture with a composite NPN output stage. All of the quiescent current and the drive current for the output stage flows to the load increasing efficiency.

The LT1086 is available in a 3-pin TO-220 package and a space-saving surface mountable 3-pin DD package.


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
LT1086CM-3.3#PBF DDPAK-3 M C 05-08-1460 Yes
LT1086CM-3.3#TRPBF DDPAK-3 M C 05-08-1460 Yes
LT1086CM-3.6#PBF DDPAK-3 M C 05-08-1460 Yes
LT1086CM-3.6#TRPBF DDPAK-3 M C 05-08-1460 Yes
LT1086CM#PBF DDPAK-3 M C 05-08-1460 Yes
LT1086CM#TRPBF DDPAK-3 M C 05-08-1460 Yes
LT1086CT-12#PBF TO-220 T C 05-08-1420 Yes
LT1086CT-2.85#PBF TO-220 T C 05-08-1420 Yes
LT1086CT-3.3#PBF TO-220 T C 05-08-1420 Yes
LT1086CT-3.6#PBF TO-220 T C 05-08-1420 Yes
LT1086CT-5#PBF TO-220 T C 05-08-1420 Yes
LT1086CT#PBF TO-220 T C 05-08-1420 Yes
LT1086IM-3.3#PBF DDPAK-3 M I 05-08-1460 Yes
LT1086IM-3.3#TRPBF DDPAK-3 M I 05-08-1460 Yes
LT1086IM#PBF DDPAK-3 M I 05-08-1460 Yes
LT1086IM#TRPBF DDPAK-3 M I 05-08-1460 Yes
LT1086IT-12#PBF TO-220 T I 05-08-1420 Yes
LT1086IT-3.3#PBF TO-220 T I 05-08-1420 Yes
LT1086IT-5#PBF TO-220 T I 05-08-1420 Yes
LT1086IT#36PBF TO-220 T I 05-08-1421 (Std) Yes
LT1086IT#PBF TO-220 T I 05-08-1420 Yes

LT1086 Package Drawing
LT1086 Package Drawing
LT1086 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
LT1086CM-3.3#PBF DDPAK-3 C $2.65 $2.15 Yes
LT1086CM-3.3#TRPBF DDPAK-3 C $2.28 Yes
LT1086CM-3.6#PBF DDPAK-3 C $2.65 $2.15 Yes
LT1086CM-3.6#TRPBF DDPAK-3 C $2.28 Yes
LT1086CM#PBF DDPAK-3 C $2.65 $2.15 Yes
LT1086CM#TRPBF DDPAK-3 C $2.28 Yes
LT1086CT-12#PBF TO-220 C $2.50 $2.00 Yes
LT1086CT-2.85#PBF TO-220 C $2.50 $2.00 Yes
LT1086CT-3.3#PBF TO-220 C $2.50 $2.00 Yes
LT1086CT-3.6#PBF TO-220 C $2.50 $2.00 Yes
LT1086CT-5#PBF TO-220 C $2.50 $2.00 Yes
LT1086CT#PBF TO-220 C $2.50 $2.00 Yes
LT1086IM-3.3#PBF DDPAK-3 I $2.95 $2.45 Yes
LT1086IM-3.3#TRPBF DDPAK-3 I $2.58 Yes
LT1086IM#PBF DDPAK-3 I $2.95 $2.45 Yes
LT1086IM#TRPBF DDPAK-3 I $2.58 Yes
LT1086IT-12#PBF TO-220 I $2.90 $2.35 Yes
LT1086IT-3.3#PBF TO-220 I $2.90 $2.35 Yes
LT1086IT-5#PBF TO-220 I $2.90 $2.35 Yes
LT1086IT#36PBF TO-220 I $3.35 $2.80 Yes
LT1086IT#PBF TO-220 I $2.90 $2.35 Yes
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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.

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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.

Click here to view our complete list of demo boards


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