LT1424-9
Info: : PRODUCTION
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LT1424-9

Isolated Flyback Switching Regulator with 9V Output

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Info: : PRODUCTION tooltip
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Part Models 6
1ku List Price Starting From $4.11
Features
  • No Transformer “Third Winding” or Optoisolator Required
  • Application Circuit Meets PCMCIA Type II Height Requirement
  • Fixed, Application Specific 9V Output Voltage
  • Regulation Maintained Well into Discontinuous Mode (Light Load)
  • Load Compensation Provides Excellent Load Regulation
  • Available in 8-Pin PDIP and SO Packages
  • Operating Frequency: 285kHz
Additional Details
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The LT1424-9 is a monolithic high power switching regulator specifically designed for the isolated flyback topology. No “third winding” or optoisolator is required; the integrated circuit senses the isolated output voltage directly from the primary side flyback waveform. A high current, high efficiency switch is included on the die along with all oscillator, control and protection circuitry.

The LT1424-9 operates with input supply voltages from 3V to 20V and draws only 7mA quiescent current. It can deliver up to 200mA at 9V with no external power devices. By utilizing current mode switching techniques, it provides excellent AC and DC line regulation.

The LT1424-9 has a number of features not found on other switching regulator ICs. Its unique control circuitry can maintain regulation well into discontinuous mode. Load compensation circuitry allows for improved load regulation. An externally activated shutdown mode reduces total supply current to 20µA typical for standby operation.

Applications

  • Ethernet Isolated 5V to –9V Converter
Part Models 6
1ku List Price Starting From $4.11

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Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Oct 8, 2024

- 24_0234

Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package

LT1424CN8-9#PBF

PRODUCTION

LT1424IN8-9#PBF

PRODUCTION

Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1424CN8-9#PBF

PRODUCTION

LT1424IN8-9#PBF

PRODUCTION

Aug 6, 2022

- 22_0172

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

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PRODUCTION

LT1424IN8-9#PBF

PRODUCTION

Oct 8, 2024

- 24_0236

Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package

LT1424CS8-9#PBF

PRODUCTION

LT1424CS8-9#TRPBF

PRODUCTION

LT1424IS8-9#PBF

PRODUCTION

LT1424IS8-9#TRPBF

PRODUCTION

Oct 12, 2022

- 22_0254

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

LT1424CS8-9#PBF

PRODUCTION

LT1424CS8-9#TRPBF

PRODUCTION

LT1424IS8-9#PBF

PRODUCTION

LT1424IS8-9#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

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

LT1424CS8-9#PBF

PRODUCTION

LT1424CS8-9#TRPBF

PRODUCTION

LT1424IS8-9#PBF

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PRODUCTION

Filter by Model

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Reset Filters

Part Models

Product Lifecycle

PCN

Oct 8, 2024

- 24_0234

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Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package

LT1424CN8-9#PBF

PRODUCTION

LT1424IN8-9#PBF

PRODUCTION

Oct 11, 2022

- 22_0241

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Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1424CN8-9#PBF

PRODUCTION

LT1424IN8-9#PBF

PRODUCTION

Aug 6, 2022

- 22_0172

arrow down

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

LT1424CN8-9#PBF

PRODUCTION

LT1424IN8-9#PBF

PRODUCTION

Oct 8, 2024

- 24_0236

arrow down

Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package

LT1424CS8-9#PBF

PRODUCTION

LT1424CS8-9#TRPBF

PRODUCTION

LT1424IS8-9#PBF

PRODUCTION

LT1424IS8-9#TRPBF

PRODUCTION

Oct 12, 2022

- 22_0254

arrow down

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

LT1424CS8-9#PBF

PRODUCTION

LT1424CS8-9#TRPBF

PRODUCTION

LT1424IS8-9#PBF

PRODUCTION

LT1424IS8-9#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

arrow down

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

LT1424CS8-9#PBF

PRODUCTION

LT1424CS8-9#TRPBF

PRODUCTION

LT1424IS8-9#PBF

PRODUCTION

LT1424IS8-9#TRPBF

PRODUCTION

Software & Part Ecosystem

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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