LT8580
Info : RECOMMENDED FOR NEW DESIGNS
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LT8580

Boost/SEPIC/Inverting DC/DC Converter with 1A, 65V Switch, Soft-Start and Synchronization

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 16
1ku List Price Starting From $2.84
Features
  • 1A, 65V Power Switch
  • Adjustable Switching Frequency
  • Single Feedback Resistor Sets VOUT
  • Synchronizable to External Clock
  • High Gain SHDN Pin Accepts Slowly Varying Input Signals
  • Wide Input Voltage Range: 2.55V to 40V
  • Low VCESAT Switch: 400mV at 0.75A (Typical)
  • Integrated Soft-Start Function
  • Easily Configurable as a Boost, SEPIC, or Inverting Converter
  • User Configurable Undervoltage Lockout (UVLO)
  • Pin Compatible with LT3580
  • Tiny Thermally Enhanced 8-Lead 3mm × 3mm DFN and 8-Lead MSOP Packages
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LT8580 is a PWM DC/DC converter containing an internal 1A, 65V switch. The LT8580 can be configured as either a boost, SEPIC or inverting converter.

The LT8580 has an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT8580 can be synchronized to an external clock. The switching frequency of the part may be free running or synchronized, and can be set between 200kHz and 1.5MHz.

The LT8580 also features innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function.

Additional features such as frequency foldback and soft-start are integrated. The LT8580 is available in tiny thermally enhanced 3mm × 3mm 8-lead DFN and 8-lead MSOP packages.

APPLICATIONS

  • VFD Bias Supplies
  • TFT-LCD Bias Supplies
  • GPS Receivers
  • DSL Modems
  • Local Power Supply
Part Models 16
1ku List Price Starting From $2.84

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Documentation

Documentation

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

PCN

Feb 3, 2020

- 20_0128

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LT8580EMS8E#PBF

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LT8580EMS8E#TRPBF

PRODUCTION

LT8580EMS8E#WPBF

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LT8580EMS8E#WTRPBF

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LT8580HMS8E#PBF

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LT8580HMS8E#TRPBF

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LT8580IMS8E#PBF

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LT8580IMS8E#TRPBF

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LT8580IMS8E#WPBF

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LT8580IMS8E#WTRPBF

PRODUCTION

Oct 11, 2022

- 22_0244

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LT8580EMS8E#WPBF

PRODUCTION

LT8580EMS8E#WTRPBF

PRODUCTION

LT8580IMS8E#WPBF

PRODUCTION

LT8580IMS8E#WTRPBF

PRODUCTION

Jun 21, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Apr 18, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Feb 3, 2020

- 20_0128

arrow down

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LT8580EMS8E#PBF

PRODUCTION

LT8580EMS8E#TRPBF

PRODUCTION

LT8580EMS8E#WPBF

PRODUCTION

LT8580EMS8E#WTRPBF

PRODUCTION

LT8580HMS8E#PBF

PRODUCTION

LT8580HMS8E#TRPBF

PRODUCTION

LT8580IMS8E#PBF

PRODUCTION

LT8580IMS8E#TRPBF

PRODUCTION

LT8580IMS8E#WPBF

PRODUCTION

LT8580IMS8E#WTRPBF

PRODUCTION

Oct 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LT8580EMS8E#WPBF

PRODUCTION

LT8580EMS8E#WTRPBF

PRODUCTION

LT8580IMS8E#WPBF

PRODUCTION

LT8580IMS8E#WTRPBF

PRODUCTION

Jun 21, 2022

- 22_0050

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Apr 18, 2022

- 22_0050

arrow down

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

reference details image

DC2186A-A

LT8580 Demo Board | Boost, 3V ≤ VIN ≤ 10V, VOUT = 12V @ 120mA

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DC2186A-A

LT8580 Demo Board | Boost, 3V ≤ VIN ≤ 10V, VOUT = 12V @ 120mA

LT8580 Demo Board | Boost, 3V ≤ VIN ≤ 10V, VOUT = 12V @ 120mA

Product Detail

Demonstration circuits 2186A-A and 2186A-B feature the LT8580EDD in boost/inverting configurations. The demo circuits demonstrate small size and low component count. The DC2186A-A boost demo board is designed to convert a 3V to 10V source to 12V at 120mA. The DC2186A-B two inductor inverting (Cuk) demo board converts a 5V to 12V source to –12V at 150mA. Please refer to figures in the manual for maximum load current at different input voltage levels.

reference details image

DC2186A-B

LT8580 Demo Board | Two Inductor Inverting (Cuk), 5V ≤ VIN ≤ 12V, VOUT = -12V @ 150mA

zoom

DC2186A-B

LT8580 Demo Board | Two Inductor Inverting (Cuk), 5V ≤ VIN ≤ 12V, VOUT = -12V @ 150mA

LT8580 Demo Board | Two Inductor Inverting (Cuk), 5V ≤ VIN ≤ 12V, VOUT = -12V @ 150mA

Product Detail

Demonstration circuits 2186A-A and 2186A-B feature the LT8580EDD in boost/inverting configurations. The demo circuits demonstrate small size and low component count. The DC2186A-B two inductor inverting (Cuk) demo board converts a 5V to 12V source to –12V at 150mA. Please refer to the manual for maximum load current at different input voltage levels.

Tools & Simulations

Tools & Simulations 2

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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