Analog Devices Inc. LT8361 Boost/SEPIC/Inverting Converters

Analog Devices Inc. LT8361 Low IQ Boost/SEPIC/Inverting Converters are current-mode, 2MHz multi-topology DC-DC converters with a 2A, 100V power switch. Designers can configure the LT8361 as either a boost, SEPIC, or an inverting converter. The 375mΩ power switch enables the LT8361 to deliver operational efficiencies up to 95%. 

The LT8361 Boost/SEPIC/Inverting Converters operate from an input voltage range of 2.8V to 60V and have a programmable switching frequency from 300kHz to 2MHz. For increased efficiency, a BIAS pin can accept a second input to supply the INTVCC regulator. An external compensation pin allows optimization of loop bandwidth over a wide range of input and output voltages. The SYNC/MODE pin allows synchronization of the LT8361 to an external clock. In addition, the SYNC/MODE pin can be used to select between burst or pulse-skip modes of operation with or without Spread Spectrum Frequency Modulation for low EMI. In burst-mode operation, the LT8361 consumes as little as 9µA quiescent current in order to maintain over 90% efficiency at very low output currents, while keeping typical output ripple below 15mV.

Available in a thermally enhanced 16-Lead MSOP package, the LT8361 is well-suited for applications with input sources ranging from a single-cell Li-Ion battery to multi-cell battery stacks, automotive inputs, telecom power supplies, and industrial power rails.


  • 2.8V to 60V input voltage range
  • Ultra-low quiescent current and low ripple
  • IQ = 9µA Burst Mode® operation
  • 2A, 100V power switch
  • Positive or negative output voltage programming with a single feedback pin
  • 300kHz to 2MHz programmable frequency
  • Synchronizable to an external clock
  • Spread spectrum frequency modulation for low EMI
  • BIAS pin for higher efficiency
  • Programmable undervoltage lockout (UVLO)
  • Thermally enhanced 16-lead MSOP packages


  • Industrial and automotive
  • Telecom
  • Medical diagnostic equipment
  • Portable electronics

Typical Application Circuit

Application Circuit Diagram - Analog Devices Inc. LT8361 Boost/SEPIC/Inverting Converters

Pin Configuration

Chart - Analog Devices Inc. LT8361 Boost/SEPIC/Inverting Converters
Published: 2018-05-22 | Updated: 2023-02-07