LT1107
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LT1107

Micropower DC/DC Converter Adjustable and Fixed 5V, 12V

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Part Details
Part Models 8
1ku List Price Starting From $3.42
Features
  • Operates at Supply Voltages from 2V to 30V
  • Consumes Only 320µA Supply Current
  • Works in Step-Up or Step-Down Mode
  • Only Three External Components Required
  • Low-Battery Detector Comparator On-Chip
  • User Adjustable Current Limit
  • Internal 1A Power Switch
  • Fixed or Adjustable Output Voltage Versions
  • Space Saving 8-Pin MiniDIP or SO-8 Package
Additional Details
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The LT1107 is a versatile micropower DC/DC converter. The device requires only three external components to deliver a fixed output of 5V or 12V. Supply voltage ranges from 2V to 12V in step-up mode and to 30V in step-down mode. The LT1107 functions equally well in step-up, step-down, or inverting applications.

The LT1107 is pin-for-pin compatible with the LT1111, but has a duty cycle of 70%, resulting in increased output current in many applications. The LT1107 can deliver 150mA at 5V from a 2AA cell input and 5V at 300mA from 24V in step-down mode. Quiescent current is just 320µA, making the LT1107 ideal for power-conscious battery operated systems. The 63kHz oscillator is optimized to work with surface mount inductors and capacitors.

Switch current limit can be programmed with a single resistor. An auxiliary gain block can be configured as a low-battery detector, linear post regulator, undervoltage lock-out circuit, or error amplifier.

Applications

  • Palmtop Computers
  • 3V to 5V, 5V to 12V Converters
  • 24V to 5V, 12V to 5V Converters
  • LCD Bias Generators
  • Peripherals and Add-On Cards
  • Battery Backup Supplies
  • Cellular Telephones
  • Portable Instruments
Part Models 8
1ku List Price Starting From $3.42

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Documentation

Documentation

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

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Dec 14, 2023

- 22_0255

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

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Jun 11, 2021

- 21_0060

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

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Filter by Model

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Part Models

Product Lifecycle

PCN

Dec 14, 2023

- 22_0255

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

LT1107CS8#PBF

PRODUCTION

LT1107CS8#TRPBF

PRODUCTION

LT1107CS8-12#PBF

PRODUCTION

LT1107CS8-12#TRPBF

PRODUCTION

LT1107CS8-5#PBF

PRODUCTION

LT1107CS8-5#TRPBF

PRODUCTION

LT1107IS8#PBF

PRODUCTION

LT1107IS8#TRPBF

PRODUCTION

Jun 11, 2021

- 21_0060

arrow down

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

LT1107CS8#PBF

PRODUCTION

LT1107CS8#TRPBF

PRODUCTION

LT1107CS8-12#PBF

PRODUCTION

LT1107CS8-12#TRPBF

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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.

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