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8-PDIP Top View
Integrated Circuits (ICs)

LT1109CN8#PBF

Active
Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS UP L COST DC/DC CONV ADJ & FIXED 5V, 12V

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Search across all available documentation for this part.

DocumentsR177 Reliability DataPackage Drawing - 8-Lead PDIP (Narrow 0.3 Inch)+1
8-PDIP Top View
Integrated Circuits (ICs)

LT1109CN8#PBF

Active
Analog Devices Inc./Maxim Integrated

SWITCHING VOLTAGE REGULATORS UP L COST DC/DC CONV ADJ & FIXED 5V, 12V

Deep-Dive with AI

DocumentsR177 Reliability DataPackage Drawing - 8-Lead PDIP (Narrow 0.3 Inch)+1

Technical Specifications

Parameters and characteristics for this part

SpecificationLT1109CN8#PBF
Current - Output1.2 A
Frequency - Switching120 kHz
FunctionStep-Up
Mounting TypeThrough Hole
Number of Outputs1
Operating Temperature [Max]70 °C
Operating Temperature [Min]0 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / Case8-DIP (0.300", 7.62mm)
Supplier Device Package8-PDIP
Synchronous RectifierFalse
TopologyBoost
Voltage - Input (Max) [Max]20 V
Voltage - Input (Min) [Min]3 V
Voltage - Output (Max) [Max]50 V
Voltage - Output (Min/Fixed)1.25 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$Updated
DigikeyN/A 0$ 4.211m+
Tube 150$ 4.701m+
MouserN/A 1$ 9.131m+
10$ 7.19
50$ 6.11
100$ 4.21
2500$ 4.19

Description

General part information

LT1109 Series

The LT1109 is a simple step-up DC/DC converter. Available in 8-pin SO, 3-lead TO-92 (fixed output only) or miniDIP packages, the devices require only three external components to construct a complete DC/DC converter. Current drain is just 320µA at no load, making the device ideal for cost-sensitive applications where standby current must be kept to a minimum.The LT1109-5 can deliver 5V at 100mA from a 3V input and the LT1109-12 can deliver 12V at 60mA from a 5V input. The 8-pin versions also feature a logic controlledSHUTDOWNpin that turns off the oscillator when taken low. The gated-oscillator design requires no frequency compensation components. The high frequency 120kHz oscillator permits the use of small surface mount inductors and capacitors. For a 5V to 12V at 120mA converter, see the LT1109A. For a 5V to 12V at 200mA converter with 20µA shutdown current, see the LT1301.ApplicationsFlash Memory VPP Generators3V to 5V Converters5V to 12V ConvertersDisk DrivesPC Plug-In CardsPeripheralsBattery-Powered Equipment