LT1109A
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LT1109A

Micropower DC/DC Converter Flash Memory VPP Generator Adjustable and Fixed 5V, 12V

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Models 9
1ku List Price Starting From $3.47
Features
  • Uses Off-the-Shelf Inductors
  • Low Cost
  • 8-Pin DIP or SO Package
  • Fixed 5V or 12V Output or Adjustable Version
  • Only Four External Components Required
  • 360µA Standby Current
  • Logic-Controlled Shutdown
Additional Details
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The LT1109A is a simple step-up DC/DC converter. The 8-pin DIP or SOIC devices require only four external components to construct a complete DC/DC converter. Current drain is just 360µA at no load, making the device ideal for cost-sensitive applications where standby current must be kept to a minimum.

The LT1109A-12 can deliver 12V at over 150mA from a 5V supply, enough power to program four flash memory chips simultaneously. The LT1109A-5 can deliver 5V at up to 110mA from a 2V input. The devices feature a shutdown pin that turns off the oscillator when taken low. The gatedoscillator design requires no frequency compensation components. High frequency 120kHz operation permits the use of small surface mount inductors and capacitors.

Applications

  • Flash Memory VPP Generators
  • 5V to 12V Converters
  • 3.3V to 12V Converters
  • Disk Drives
  • PC Plug-In Cards
  • Peripherals
  • Battery-Powered Equipment
Part Models 9
1ku List Price Starting From $3.47

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Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1109ACN8#PBF
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Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1109ACN8#PBF

PRODUCTION

LT1109ACN8-12#PBF

PRODUCTION

LT1109ACN8-5#PBF

PRODUCTION

Aug 6, 2022

- 22_0172

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

LT1109ACN8#PBF

PRODUCTION

LT1109ACN8-12#PBF

PRODUCTION

LT1109ACN8-5#PBF

PRODUCTION

Dec 14, 2023

- 22_0255

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

LT1109ACS8#PBF

PRODUCTION

LT1109ACS8#TRPBF

PRODUCTION

LT1109ACS8-12#PBF

PRODUCTION

LT1109ACS8-12#TRPBF

PRODUCTION

LT1109ACS8-5#PBF

PRODUCTION

LT1109ACS8-5#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

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

LT1109ACS8#PBF

PRODUCTION

LT1109ACS8#TRPBF

PRODUCTION

LT1109ACS8-12#PBF

PRODUCTION

LT1109ACS8-12#TRPBF

PRODUCTION

LT1109ACS8-5#PBF

PRODUCTION

LT1109ACS8-5#TRPBF

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

LT1109ACN8#PBF

PRODUCTION

LT1109ACN8-12#PBF

PRODUCTION

LT1109ACN8-5#PBF

PRODUCTION

Aug 6, 2022

- 22_0172

arrow down

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

LT1109ACN8#PBF

PRODUCTION

LT1109ACN8-12#PBF

PRODUCTION

LT1109ACN8-5#PBF

PRODUCTION

Dec 14, 2023

- 22_0255

arrow down

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

LT1109ACS8#PBF

PRODUCTION

LT1109ACS8#TRPBF

PRODUCTION

LT1109ACS8-12#PBF

PRODUCTION

LT1109ACS8-12#TRPBF

PRODUCTION

LT1109ACS8-5#PBF

PRODUCTION

LT1109ACS8-5#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

arrow down

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

LT1109ACS8#PBF

PRODUCTION

LT1109ACS8#TRPBF

PRODUCTION

LT1109ACS8-12#PBF

PRODUCTION

LT1109ACS8-12#TRPBF

PRODUCTION

LT1109ACS8-5#PBF

PRODUCTION

LT1109ACS8-5#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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