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LT1109A

Features: Uses Off-the-Shelf InductorsLow Cost8-Pin DIP or SO PackageFixed 5V or 12V Output or Adjustable VersionOnly Four External Components Required360A Standby CurrentLogic-Controlled ShutdownApplicationFlash Memory VPPGenerators5V to 12V Converters3.3V to 12V ConvertersDisk DrivesPC Plug-In C...

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SeekIC No. : 004400335 Detail

LT1109A: Features: Uses Off-the-Shelf InductorsLow Cost8-Pin DIP or SO PackageFixed 5V or 12V Output or Adjustable VersionOnly Four External Components Required360A Standby CurrentLogic-Controlled ShutdownAp...

LT1109A Data Sheet

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Part Number:
LT1109A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/20

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Product Details

Description



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
360A Standby Current
Logic-Controlled Shutdown


Application

Flash Memory VPPGenerators
5V to 12V Converters
3.3V to 12V Converters
Disk Drives
PC Plug-In Cards
Peripherals
Battery-Powered Equipment


Pinout

Connection Diagram


Specifications

(Voltages Referred to GND Pin)
Supply Voltage (VIN) ................................ 0.4V to 20V
SW Pin Voltage ........................................ 0.4V to 50V
Feedback Pin Voltage (LT1109A) ........................... .5.5V
Shutdown Pin Voltage ............................................ 5.5V
Switch Current .......................................................... 2A
Maximum Power Dissipation ............................ ..300mW
Operating Temperature Range ................ 0°C to 70°C
Storage Temperature Range ............ 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300°C


Description

The LT1109A is a simple step-up DC/DC converter. The 8-pin DIP or SOIC devices require only four external compo nents to construct a complete DC/DC converter. Current drain is just 360A 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 5Vsupply, 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 gated-oscillator design requires no frequency compensation components. High frequency 120kHz operation permits the use of small surface mount inductors and capacitors.




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