LT3580

PRODUCTION

Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization

Data Sheet (Rev. H) Product Selection Table
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Overview

  • 2A Internal 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: 2.5V to 32V
  • Low VCESAT Switch: 300mV at 1.5A (Typical)
  • Integrated Soft-Start Function
  • Easily Configurable as a Boost or Inverting Converter
  • User Configurable Undervoltage Lockout (UVLO)
  • Tiny 8-Lead 3mm × 3mm DFN and 8-Lead MSOP Packages
LT3580
Boost/Inverting DC/DC Converter with 2A Switch, Soft-Start, and Synchronization
1.2MHz, 5V to 12V Boost Converter Achieves Over 88% Efficiency Efficiency and Power Loss Product Package 1 Product Package 2
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Documentation

Data Sheet 1

User Guide 1

Application Note 1

Design Note 1

Technical Articles 2

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Oscillators 1
LTC6909
PRODUCTION 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
Switching Regulators & Controllers 1
LT8335
PRODUCTION Low IQ Boost/SEPIC/ Inverting Converter with 2A, 28V Switch
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LT3580
LTspice

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.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
DC1144A-A

LT3580EDD Demo Board | 3V ≤ VIN ≤ 10V, VOUT = 12V @ 300mA

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Product Details

Demonstration circuits 1144A-A and 1144A-B feature the LT3580EDD in Boost and Inverting regulator configurations, respectively. The demo circuits demonstrate small size and low component count. The DC1144A-A is designed to convert a 3V to 10V source to 12V at 300mA, while the DC1144A-B inverter converts a 5V to 12V source to -12V at 350mA.


The LT3580 operates with inputs as high as 32V but in these demo boards the input is limited by the voltage rating of the input capacitors and the magnitude of the boost output. The DC1146A-B can easily be configured into a SEPIC converter.

eval board
schematic 6
schematic 7
schematic 8
schematic 9
schematic 10
schematic 11
DC1144A-B

LT3580EDD Demo Board | 5V ≤ VIN ≤ 12, VOUT = -12V @ 350mA

Buy Now View Details

Product Details

Demonstration circuits 1144A-A and 1144A-B feature the LT3580EDD in Boost and Inverting regulator configurations, respectively. The demo circuits demonstrate small size and low component count. The DC1144A-A is designed to convert a 3V to 10V source to 12V at 300mA, while the DC1144A-B inverter converts a 5V to 12V source to -12V at 350mA.


The LT3580 operates with inputs as high as 32V but in these demo boards the input is limited by the voltage rating of the input capacitors and the magnitude of the boost output. The DC1146A-B can easily be configured into a SEPIC converter.
DC1144A-A
LT3580EDD Demo Board | 3V ≤ VIN ≤ 10V, VOUT = 12V @ 300mA
DC1144A-A Demo Board DC1144A-A Demo Board DC1144A-A Demo Board DC1144A-A Demo Board DC1144A-A - Schematic
DC1144A-B
LT3580EDD Demo Board | 5V ≤ VIN ≤ 12, VOUT = -12V @ 350mA
DC1144A-B Demo Board DC1144A-B Demo Board DC1144A-B Demo Board DC1144A-B Demo Board DC1144A-B Demo Board DC1144A-A - Schematic

Reference Designs

DE0 Nano SoC Dev Platform - Top View
DE0 Nano SoC Dev Platform - Top View
DE0 Nano SoC Dev Platform - Bottom View
DE0 Nano SoC Block Diagram
DE0 Nano SoC Power Tree
Terasic DE0-Nano-SoC Kit / Atlas-SoC Kit Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
DE-10 Nano Kit
DE-10 Nano Kit
DE-10 Nano Kit Block Diagram
DE-10 Nano Power Tree
Terasic DE10-Nano Kit Circuits from the lab

View Detailed Reference Design

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
Terasic DE0-Nano-SoC Kit / Atlas-SoC Kit
DE0 Nano SoC Dev Platform - Top View
DE0 Nano SoC Dev Platform - Bottom View
DE0 Nano SoC Block Diagram
DE0 Nano SoC Power Tree
Terasic DE10-Nano Kit
DE-10 Nano Kit
DE-10 Nano Kit Block Diagram
DE-10 Nano Power Tree

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