Analog Devices’ new component can be configured as a boost, SEPIC, or inverting converter
Analog Devices announced the Power by Linear LT8361, a current mode, 2 MHz, multitopology DC/DC converter with an internal 2 A, 100 V switch. It operates from an input voltage range of 2.8 V to 60 V and is suitable for applications with input sources ranging from a single-cell Li-Ion battery to multicell battery stacks, automotive inputs, telecom power supplies, and industrial power rails.
The LT8361 can be configured as either a boost, SEPIC (single-ended, primary-inductor converter), or inverting converter. Its switching frequency can be programmed between 300 kHz and 2 MHz, enabling designers to minimize external component sizes and avoid critical frequency bands such as AM radio. It offers over 90% efficiency while switching at 2 MHz. Burst Mode operation reduces quiescent current to only 9 µA while keeping output ripple below 15 mVp-p. The combination of a small MSOP-16E package and tiny external components due to the high switching frequency are designed to ensure a highly compact footprint while minimizing solution cost.
The device’s 375 mΩ power switch delivers efficiencies up to 95%. It offers spread spectrum frequency modulation to minimize EMI concerns. A single feedback pin sets the output voltage whether the output is positive or negative, minimizing pin count. Other features include external synchronization, programmable UVLO, frequency foldback, and programmable soft-start.
The LT8361EMSE is available in an MSOP-16E package (4 pins removed for high voltage spacing). An industrial temperature (–40 C to 125 C) version (the LT8361IMSE) and a high temperature (–40 C to 150 C) version (the LT8361HMSE) are also available.
View the LT8361 product page, download the data sheet, and order samples and evaluation boards: www.analog.com/LT8361.