LT1072
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LT1072

1.25A High Efficiency Switching Regulator

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Info: : PRODUCTION tooltip
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Part Details
Part Models 11
1ku List Price Starting From $3.15
Features
  • Available in MiniDIP, TO-220, and TO-3 Packages
  • Wide Input Voltage Range: 3V to 60V
  • Low Quiescent Current: 6mA
  • Internal 1.25A Switch
  • Very Few External Parts Required
  • Self-Protected Against Overloads
  • Operates in Nearly All Switching Topologies
  • Shutdown Mode Draws Only 50µA Supply Current
  • Flyback-Regulated Mode has Fully Floating Outputs
  • Can be Externally Synchronized
Additional Details
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The LT®1072 is a monolithic high power switching regulator. It can be operated in all standard switching configurations including buck, boost, flyback, forward, inverting and “Cuk”. A high current, high efficiency switch is included on the die along with all oscillator, control, and protection circuitry. Integration of all functions allows the LT1072 to be built in a standard 5-pin TO-3 or TO-220 power package as well as the 8-pin miniDlP. This makes it extremely easy to use and provides "bustproof" operation similar to that obtained with 3-pin linear regulators.

The LT1072 operates with supply voltages from 3V to 60V, and draws only 6mA quiescent current. It can deliver load power up to 20 watts with no external power devices. By utilizing current-mode switching techniques, it provides excellent AC and DC load and line regulation.

The LT1072 has many unique features not found even on the vastly more difficult to use low power control chips presently available. It uses an adaptive anti-sat switch drive to allow very wide ranging load currents with no loss in efficiency. An externally activated shutdown mode reduces total supply current to 50µA typical for standby operation. Totally isolated and regulated outputs can be generated by using the optional “flyback regulation mode” built into the LT1072, without the need for optocouplers or extra transformer windings.

Applications

  • Logic Supply 5V at 2.5A
  • 5V Logic to ±15V Op Amp Supply
  • Offline Converter up to 50W
  • Battery Upconverter
  • Power Inverter (+ to -) or (- to +)
  • Fully Floating Multiple Outputs
  • Driver for High Current Supplies
Part Models 11
1ku List Price Starting From $3.15

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1072CN8#PBF
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LT1072CS8#PBF
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LT1072CS8#TRPBF
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LT1072CSW#PBF
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LT1072CSW#TRPBF
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LT1072CT#06PBF
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LT1072CT#PBF
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LT1072HVCT#PBF
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LT1072HVIT#PBF
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LT1072IN8#PBF
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LT1072IT#PBF
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Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

Oct 12, 2022

- 22_0254

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

Jun 11, 2021

- 21_0060

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1072CS8#PBF

PRODUCTION

LT1072CS8#TRPBF

PRODUCTION

Aug 10, 2022

- 22_0176

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LT1072CSW#PBF

PRODUCTION

LT1072CSW#TRPBF

PRODUCTION

Aug 10, 2022

- 22_0175

Laser Top Mark Conversion for DDPAK & TO220 Packages Assembled in ADPG. Country of Origin Code [MY] To Be Incorporated On Top Mark

LT1072CT#06PBF

PRODUCTION

LT1072CT#PBF

PRODUCTION

LT1072HVCT#PBF

PRODUCTION

LT1072HVIT#PBF

PRODUCTION

LT1072IT#PBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

arrow down

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

Oct 12, 2022

- 22_0254

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2)

Jun 11, 2021

- 21_0060

arrow down

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1072CS8#PBF

PRODUCTION

LT1072CS8#TRPBF

PRODUCTION

Aug 10, 2022

- 22_0176

arrow down

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LT1072CSW#PBF

PRODUCTION

LT1072CSW#TRPBF

PRODUCTION

Aug 10, 2022

- 22_0175

arrow down

Laser Top Mark Conversion for DDPAK & TO220 Packages Assembled in ADPG. Country of Origin Code [MY] To Be Incorporated On Top Mark

LT1072CT#06PBF

PRODUCTION

LT1072CT#PBF

PRODUCTION

LT1072HVCT#PBF

PRODUCTION

LT1072HVIT#PBF

PRODUCTION

LT1072IT#PBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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