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linear technology corp (LLTC) Details

Linear Technology Corporation, together with its subsidiaries, designs, manufactures, and markets a line of analog integrated circuits (ICs) worldwide. It produces power management, data conversion, signal conditioning, radio frequency (RF), and interface ICs; µModule subsystems; and wireless sensor network products. The company’s products primarily include amplifiers, high speed amplifiers, voltage regulators and references, interface, data converters, battery stack monitors, silicon oscillators and Timer Blox, phase locked loop synthesizers and clock distribution, SmartMesh wireless sensor network systems, isolated µModule transceivers, RF circuits, power over Ethernet controllers, µModule power products, and signal chain µModule products. It also offers other linear circuits that are used in various applications, including factory automation, process control, industrial and laboratory instrumentation, security monitoring devices, complex medical devices, telecommunications, and networking products; automotive electronics, tablet, notebook, and desktop computers; computer peripherals, video/multimedia, military, space, and other harsh environment systems; and consumer products. The company markets its products primarily through direct sales staff and electronics distributors. Linear Technology Corporation was founded in 1981 and is headquartered in Milpitas, California.

4,661 Employees
Last Reported Date: 08/20/14
Founded in 1981

linear technology corp (LLTC) Top Compensated Officers

Chief Executive Officer and Director
Total Annual Compensation: $551.0K
Co-Founder and Executive Chairman
Total Annual Compensation: $482.3K
Co-Founder, Chief Technical Officer and Vice ...
Total Annual Compensation: $421.0K
Chief Financial Officer, Vice President of Fi...
Total Annual Compensation: $467.1K
Vice President and General Manager of D Power...
Total Annual Compensation: $320.8K
Compensation as of Fiscal Year 2014.

linear technology corp (LLTC) Key Developments

Linear Technology Corporation Unveils LT8609 Step-Down Switching Regulator

Linear Technology Corporation has unveiled the LT8609, a 2A, 42V input synchronous step-down switching regulator. A unique synchronous rectification topology delivers 93% efficiency while switching at 2MHz enabling designers to avoid critical noise-sensitive frequency bands, such as AM radio, while providing a highly compact solution footprint. Burst Mode operation keeps quiescent current under 2.5µA in no-load standby conditions, making it ideal for always-on systems. The LT8609's 3.0V to 42V input voltage range makes it ideal for automotive applications which must regulate through cold-crank and stop-start scenarios with minimum input voltages as low as 3.0V and load dump transients in excess of 40V. Its internal 3.5A switches can deliver up to 2A of continuous output current with peak load currents of 3A. The LT8609 maintains a minimum dropout voltage of only 200mV (at1A) under all conditions, enabling it to excel in scenarios such as automotive cold-crank. Spread spectrum frequency modulation and special design techniques offer low-EMI operation to minimize noise concerns in automotive and industrial environments. Furthermore, a fast minimum on-time of only 45ns enables 2MHz constant frequency switching from a 16V input to a 1.5V output. The LT8609's 10-lead thermally enhanced MSOP package and high switching frequency keeps external inductors and capacitors small, providing a compact, thermally efficient footprint. The LT8609 utilizes internal top and bottom high efficiency power switches with the necessary boost diode, oscillator, control and logic circuitry integrated into a single die. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping output ripple below 10mVPK-PK. Unique design techniques and a new high speed process enable high efficiency over a wide input voltage range, and the LT8609's current-mode topology enables fast transient response and excellent loop stability. Other features include internal compensation, a power good flag, output soft start/tracking and thermal protection. The LT8609EMSE is packaged in thermally enhanced MSOP-10 package and is priced at $2.50 each. An industrial temperature version, the LT8609IMSE, is tested and guaranteed to operate from a -40°C to 125°C operating junction temperature and is priced at $2.75.

Linear Technology Corporation Unveils LT3668 Switching Regulator

Linear Technology Corporation has unveiled the LT3668, a 400mA, 40V step-down switching regulator with dual tracking LDO outputs packaged in an MSOP-16E. The LT3668 offers a complete, robust power solution for applications that require the power supply of a sensor to tightly track the power supply of a measurement ASIC. The LT3668 operates from a VIN range of 4.3V to 40V with transient protection to 60V, making it suited for automotive and industrial applications. Its internal 600mA switch can deliver up to 400mA, which is distributed to the combined loads of the primary output and both of the tracking LDOs. The primary switching channel can deliver outputs as low as 1.2V, and each LDO can deliver outputs as low as 1.1V. The LT3668 requires only 50µA of quiescent current when all three channels are in regulation, making it suited for always-on automotive applications. The LT3668's switching frequency is user programmable from 250kHz to 2.2MHz, enabling the designer to optimize efficiency while avoiding critical noise-sensitive frequency bands. Each integrated tracking LDO has an accurate programmable current limit up to 200mA to ensure an additional level of reliability. The high accuracy of the tracking LDOs makes them suited for powering ADCs and sensors. Although the LDOs can be powered by independent inputs, powering them from the primary switching output offers both high efficiency and low noise. The combination of its thermally enhanced MSOP-16E and high switching frequency, which keeps external capacitors and inductor small, provides a compact, thermally efficient footprint. The LT3668's main switcher utilizes a high efficiency 600mA switch, with the necessary oscillator, control, and logic circuitry integrated into a single die. Special design techniques enable high efficiency over a wide input voltage range, and its current mode topology enables fast transient response and excellent loop stability. Other features include a power indicator, synchronization capability, reverse-battery protection, current and thermal limiting and programmable under-voltage lockout. The LT3668EMSE is offered in a thermally enhanced 16-lead MSOP package and is priced at $2.55 each. The LT3668IMSE is tested and guaranteed to operate from a -40°C to 125°C operating junction temperature.

Linear Technology Corporation Unveils LTC6430-20 Amplifier

Linear Technology Corporation has unveiled its LTC6430-20, a 20MHz to 2GHz differential input and output 20dB gain amplifier that offers linearity of +51dBm Output Third Order Intercept, or OIP3, and 2.9dB noise figure at 240MHz. It has a best-in-class OP1dB (Output 1dB Compression Point) of +23.9dBm. The LTC6430-20 is offered in an A-grade version, which is 100% tested and guaranteed to a minimum OIP3 of +44.8dBm, with a typical of +48.3dBm at 380MHz. Its gain is also guaranteed at minimum of 19.6dB and maximum of 22.1dB. A B-grade version offers a typical OIP3 of +46.3dBm at the same frequency. The LTC6430-20 is ideal for amplifying IF and RF signals in low distortion, high dynamic range transmitters or receivers at frequencies to 1.5GHz. Higher frequencies up to 2GHz can be achieved with appropriate impedance matching. The LTC6430-20's linearity characteristics are particularly outstanding when the device is used as an IF amplifier driving differential inputs of high speed A/D converters in main receivers or digital predistortion receivers whose performance relies on low distortion and high dynamic range. In addition, the device is ideal as a low noise amplifier for a wide range of broadband and narrowband radios that operate in the VHF/UHF bands, such as broadcast equipment, cable networks, white space broadband data services and low-band LTE/LTE-Advanced wireless base stations. Both inputs and outputs of the LTC6430-20 are internally 100 ohm matched differential from 20MHz to 1.2GHz, and have a 20.5dB power gain with a frequency response flatness of better than 0.5dB over that frequency range. The internal 100à matching simplifies design and allows easy cascading for higher gains, requiring minimum external components. Moreover, the differential configuration produces exceptionally low 2nd order harmonic distortion. The device is specified for a case operating temperature range from -40°C to 85°C. The LTC6430-20 is available in a 4mm x 4mm QFN package. It is powered from a single 5V supply at 170mA supply current.


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