LINEAR Manuals (Industrial)

LINEAR TECHNOLOGY LT1024 handbook

The LT1024 is a low-drift dual operational amplifier with extremely high common-mode rejection ratio and power-supply rejection ratio, making it ideal for high-precision applications.

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LINEAR TECHNOLOGY LT1305 handbook

The LT1305 micropower high power DC/DC converter with low-battery detector provides 2-cell and 3-cell to 5V conversion for EL panel drivers and portable instruments.

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LINEAR TECHNOLOGY LT3693 handbook

The LT3693 is an adjustable frequency (200kHz to 2.4MHz) monolithic buck switching regulator that accepts input voltages up to 36V. A high efficiency 95m switch is included on the die along with a boost Schottky diode and the necessary oscillator, control, and logic circuitry. Current mode topology is used for fast transient response and good loop stability. Shutdown reduces input supply current to less than 1μA while a resistor and capacitor on the RUN/SS pin provide a controlled output voltage ramp (soft-start). A power good flag signals when VOUT reaches 91% of the programmed output voltage. The LT3693 is available in 10-Pin MSOP and 3mm × 3mm DFN packages with exposed pads for low thermal resistance.

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LINEAR TECHNOLOGY LTC690/LTC691 LTC694/LTC695 handbook

LTC690/LTC691 and LTC694/LTC695 are chips used for power supply monitoring and battery control in microprocessor systems. They provide functions such as microprocessor reset, battery backup, CMOS RAM write protection, power failure warning, and watchdog timing. They have a precise internal voltage reference and comparator circuit. When an out-of-tolerance condition occurs in the power supply line, the reset outputs are forced to active states and the chip enable output unconditionally write-protects external memory. In addition, the LTC690 series also has a precise voltage monitoring function for power failure or low battery warning. It is an upgrade for the MAX690 series.

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LINEAR TECHNOLOGY LTC4061 handbook

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LINEAR TECHNOLOGY LTC1052/LTC7652 handbook

The LTC1052 and LTC7652 are low noise zero-drift op amps manufactured using Linear Technology’s enhanced LTCMOS silicon gate process. Chopper-stabilization constantly corrects offset voltage errors. Both initial offset and changes in the offset due to time, temperature and common mode voltage are corrected. This, coupled with picoampere input currents, gives these amplifiers unmatched performance. Low frequency (1/f) noise is also improved by the chopping technique. Instead of increasing continuously at a 3dB/octave rate, the internal chopping causes noise to decrease at low frequencies. The chopper circuitry is entirely internal and completely transparent to the user. Only two external capacitors are required to alternately sample-and-hold the offset correction voltage and the amplified input signal. Control circuitry is brought out on the 14-pin and 16-pin versions to allow the sampling of the LTC1052 to be synchronized with an external frequency source.

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LINEAR TECHNOLOGY LTC1474/LTC1475 handbook

The LTC1474/LTC1475 is a high efficiency step-down converter with internal P-channel MOSFET power switches that draw only 10µA typical DC supply current at no load while maintaining output voltage. The LTC1474 uses logic-controlled shutdown while the LTC1475 features pushbutton on/off. The low supply current coupled with Burst ModeTM operation enables the LTC1474/LTC1475 to maintain high efficiency, even with output voltages ranging from 3V to 18V and load currents up to 400mA.

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LINEAR TECHNOLOGY LT1307/LT1307B handbook

The LT1307/LT1307B are micropower, fixed frequency DC/DC converters that operate from an input voltage as low as 1V. First in the industry to achieve true current mode PWM performance from a single cell supply, the LT1307 features automatic shifting to power saving Burst Mode operation at light loads. High efficiency is main- tained over a broad 100µA to 100mA load range. The LT1307B does not shift into Burst Mode operation at light loads, eliminating low frequency output ripple at the expense of light load efficiency. The devices contain a low- battery detector with a 200mV reference and shut down to less than 5µA. No load quiescent current of the LT1307 is 50µA and the internal NPN power switch handles a 500mA current with a voltage drop of just 295mV. Unlike competitive devices, large electrolytic capacitors are not required with the LT1307/LT1307B in single cell applications. The high frequency (600kHz) switching al- lows the use of tiny surface mount multilayer ceramic (MLC) capacitors along with small surface mount induc- tors. The devices work with just 10µF of output capaci- tance and require only 1µF of input bypassing. The LT1307/LT1307B are available in 8-lead MSOP, PDIP and SO packages.

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LINEAR TECHNOLOGY LT6300 handbook

The LT6300 is a 500mA minimum output current, dual op amp with outstanding distortion performance. Amplifiers are gain-of-ten stable, but can be easily compensated for lower gains. Extended output swing allows for lower supply rails to reduce system power. Supply current is set with an external resistor to optimize power dissipation. The LT6300 features balanced, high impedance inputs with low input bias current and input offset voltage. Active termination is easily implemented for further system power reduction. Short-circuit protection and thermal shutdown insure the device’s ruggedness. The outputs drive a 100Ω load to ±10.9V with ±12V supplies, and ±10.7V with a 250mA load. The LT6300 is a functional replacement for the LT1739 and LT1794 in xDSL line driver applications and requires no circuit changes. The LT6300 is available in the very small, thermally enhanced, 16-lead SSOP package (same PCB area as the SO-8 package).

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LINEAR TECHNOLOGY LT3480 handbook

This product is a 36V, 2A, 2.4MHz step-down switching regulator with 70µA quiescent current.

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LINEAR TECHNOLOGY LT1977 handbook

The LT®1977 is a high voltage 1.5A, 500kHz step-down switching regulator that accepts input voltages up to 60V. It features a high efficiency 1.5A, 0.2Ω switch, current mode topology, and innovative design techniques to achieve high efficiency over a wide input range.

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LINEAR TECHNOLOGY LTC1735 Manual

The LTC1735 is a synchronous step-down switching regulator controller that drives external N-channel power MOSFETs using a fixed frequency architecture. Burst Mode operation provides high efficiency at low load currents. The precision 0.8V reference is compatible with future generation microprocessors. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The operating frequency (synchronizable up to 500kHz) is set by an external capacitor allowing maximum flexibility in optimizing efficiency. A forced continuous control pin reduces noise and RF interference and can assist secondary winding regulation by disabling Burst Mode operation when the main output is lightly loaded. Protection features include internal foldback current limiting, output overvoltage crowbar and optional short-circuit shutdown. Soft-start is provided by an external capacitor that can be used to properly sequence supplies. The operating current level is user-programmable via an external current sense resistor. Wide input supply range allows operation from 4V to 30V (36V maximum).

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LINEAR TECHNOLOGY - LT1303/LT1303-5 handbook

LT1303/LT1303-5 Micropower High Efficiency DC/DC Converters with Low-Battery Detector Adjustable and Fixed 5V

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LINEAR TECHNOLOGY - LTC1052/LTC7652 handbook

The LTC1052 and LTC7652 are low noise zero-drift op amps manufactured using Linear Technology's enhanced LTCMOS silicon gate process

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LINEAR TECHNOLOGY LT1976/LT1976B Manual

LT1976/LT1976B are 200kHz monolithic step-down switching regulators that accept input voltages up to 60V. It includes a high efficiency 1.5A, 0.2Ω switch, as well as all necessary oscillator, control and logic circuitry. It uses current mode topology for fast transient response and good loop stability. Innovative design techniques and a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by employing Burst Mode operation at low currents, utilizing the output to bias the internal circuitry, and by using a supply boost.

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LINEAR TECHNOLOGY LT1794 handbook

The LT1794 is a dual 500mA, 200MHz xDSL line driver amplifier that exceeds all requirements for full-rate, downstream ADSL line drivers. It has a minimum output current of ±500mA and an output swing of ±11.1V.

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LINEAR TECHNOLOGY - LTC4110 handbook

The LTC4110 is a complete single chip, high efficiency, flyback battery charge and discharge manager with automatic switchover between the input supply and the backup battery or super capacitor. The IC provides four modes of operation: battery backup, battery charge, battery calibration, and shutdown. Battery backup and battery charge are automatic standalone modes, while the optional calibration mode requires a CPU host to communicate over an SMBus. During calibration, the flyback charger is used in reverse to discharge the battery with a programmable constant current into the system load eliminating heat generation. Three status outputs can be individually reconfigured over the SMBus to become GPIOs. User programmable over-discharge protection is provided. The SHDN pin isolates the battery to support shipping the product with a charged battery installed. Multiple LTC4110s can be combined to form a redundant battery backup system or increase the number of battery packs to achieve longer backup run times. The LTC4110 is available in a low profile (0.75mm), 38-pin 5mm × 7mm QFN package. The QFN features an exposed metal die mount pad for optimum thermal performance.

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LINEAR TECHNOLOGY LT1815 LT1816/LT1817 handbook

1 LT1815 LT1816/LT1817 181567fa Single/Dual/Quad 220MHz, 1500V/µs Operational Amplifiers with Programmable Supply Current with excellent DC performance.

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LINEAR TECHNOLOGY LT1800 handbook

The LT1800 is a low power, high speed, rail-to-rail input and output operational amplifier with excellent DC performance.

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LINEAR TECHNOLOGY LT1800 sn1800 1800fs 80MHz 25V/ s Low Power Rail-to-Rail Input Output Precision Op Amp Manual

The LT1800 is a low power, high speed, rail-to-rail input and output operational amplifier with excellent DC perfor- mance.

File format: PDF Size:326 KB

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