LT1680
Info: : PRODUCTION
searchIcon
cartIcon

LT1680

High Power DC/DC Step-Up Controller

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 6
1ku List Price Starting From $5.66
Features
  • High Voltage: Operation Up to 60V
  • High Current: N-Channel Drive Handles Up to 10,000pF Gate Capacitance
  • Programmable Average Current Limiting
  • 5V Reference Output with 10mA External Loading Capability
  • Fixed Frequency Current Mode Operation
  • Oscillator Synchronizable Up to 200kHz
  • Undervoltage Lockout with Hysteresis
  • Programmable Start Inhibit for Power Supply Sequencing and Protection
  • User Adjustable Slope Compensation
Additional Details
show more Icon

The LT1680 is a high power, current mode switching power supply controller optimized for boost topologies. The IC drives an N-channel MOSFET switch for DC/DC converter applications up to 60V input. A high current gate drive output handles up to 10,000pF gate capacitance, enabling the construction of high power DC/DC converters. Current sense common mode range up to 60V allows current sensing to be referenced to the input supply, eliminating the need for sense blanking circuits.

The LT1680 incorporates programmable average current limiting allowing accurate limiting of DC current in the magnetics, independent of ripple current. User adjustable slope compensation provides stable operation at duty cycles up to 90%.

The LT1680 operating frequency is programmable and can be synchronized up to 200kHz. Minimum off-time operation provides switch protection. The IC also incorporates a soft start feature that is gated by both shutdown and undervoltage lockout conditions.

Applications

  • High Power Single Board Systems
  • Distributed Power Converters
  • Industrial Control Systems
  • Lead-Acid Battery Back-Up Systems
  • Automotive and Heavy Equipment
Part Models 6
1ku List Price Starting From $5.66

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1680CN#PBF
  • HTML
  • HTML
LT1680CSW#PBF
  • HTML
  • HTML
LT1680CSW#TRPBF
  • HTML
  • HTML
LT1680IN#PBF
  • HTML
  • HTML
LT1680ISW#PBF
  • HTML
  • HTML
LT1680ISW#TRPBF
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

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

Aug 10, 2022

- 22_0176

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LT1680CSW#PBF

PRODUCTION

LT1680CSW#TRPBF

PRODUCTION

LT1680ISW#PBF

PRODUCTION

LT1680ISW#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

Aug 6, 2022

- 22_0172

arrow down

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

Aug 10, 2022

- 22_0176

arrow down

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LT1680CSW#PBF

PRODUCTION

LT1680CSW#TRPBF

PRODUCTION

LT1680ISW#PBF

PRODUCTION

LT1680ISW#TRPBF

PRODUCTION

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.

Recently Viewed