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8331

Linear Technology Corporation announces the LT8331, a current mode step-up DC/DC converter with an internal 500mA, 140V switch. It operates from an input voltage range of 4.5V to 100V, making it suitable for use with a wide range of input sources found in industrial, transportation and avionic applications. The LT8331 can be configured as either a boost, SEPIC, flyback or inverting converter. Its switching frequency is programmable from 100kHz to 500kHz, enabling designers to minimise external component sizes. Burst Mode operation reduces quiescent current to only 6µA while keeping output ripple below 20mVP-P. The combination of a high voltage MSOP-16E package and tiny externals ensures a very compact footprint while minimising solution cost.

The LT8331’s internal high efficiency 0.5A switch delivers efficiencies of up to 90 per cent. A single feedback resistor sets the output voltage whether the output is positive or negative, minimizing external components. The LT8331’s SYNC/MODE pin enables synchronisation to an external clock or it can be used to select between Burst Mode operation for ultralow IQ or pulse-skipping mode for the lowest possible noise. Other features include programmable under-voltage lockout (UVLO), internal soft-start, frequency foldback and thermal shutdown protection.

The LT8331EMSE is available in a high voltage MSOP-16E package. An industrial temperature (˗40°C to 125°C) version, the LT8331IMSE, is also available. Pricing starts at $2.95 each for 1,000-piece quantities and both versions are available from stock.

Linear Technology

Linear Technology Corporation, a member of the S&P 500, designs, manufactures and markets a broad line of high-performance analogue-integrated circuits for major communications, computer and industrial companies worldwide.

Linear Technology Corporation, a member of the S&P 500, designs, manufactures and markets a broad line of high-performance analogue-integrated circuits for major communications, computer and industrial companies worldwide.

Linear (or analogue) circuits provide an essential bridge between our analog world and the digital microelectronics used in consumer products, wireless communications, networking products, computers, medical electronics, factory automation and automotive electronics.

Linear Technology provides customers with high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC/DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits and many other analogue functions.

The company markets over 7,500 products to more than 15,000 original equipment manufacturers. These products compete in the marketplace based on their performance, functional value, quality and reliability. Linear Technology products are produced using state-of-the-art silicon gate CMOS, BiCMOS, complementary bipolar, high-voltage and RF wafer-fabrication process technologies.

Linear Technology, headquartered in Milpitas, California, employs 4,100 people worldwide and has technical sales and support locations throughout North America, Europe and Asia. In addition to manufacturing, assembly and test facilities in California, Washington, Singapore and Malaysia, the company has 12 design centers in Arizona, California (3), Colorado, Vermont, Massachusetts, New Hampshire, North Carolina, Texas, Singapore, and Munich, Germany.

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