Inverter is suitable for applications with wide range of input sources

19-12-2017 | Analog Devices | Power

Analog Devices has introduced the Power by Linear LT8364, a current mode, 2MHz step-up DC-DC converter with an internal 4A, 60V switch. It runs from an input voltage range of 2.8V to 60V 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 device can be configured as a boost, SEPIC or an inverting converter. Its switching frequency can be programmed within 300kHz and 2MHz, enabling designers to reduce external component sizes and evade critical frequency bands, such as AM radio. Moreover, it offers over 90% efficiency while switching at 2MHz. Burst Mode operation reduces quiescent current to only 9µA while keeping output ripple below 15mVp-p. The combination of a small 4mm x 3mm DFN or high voltage MSOP-16E package and tiny externals assures a highly compact footprint while minimizing solution cost.

The device’s 100mOhm power switch achieves efficiencies of over 95%. It also gives 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.

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