LINEAR Manuals (Industrial)

This product is a 16-bit programmable DAC with wide battery input range, grounded lamp or floating lamp configurations, open lamp protection, precision 50µA full-scale DAC programming current, standard SPI mode or pulse mode, DAC setting is retained in shutdown.

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The LT®3580 is a PWM DC/DC converter containing an internal 2A, 42V switch. The LT3580 can be configured as either a boost, SEPIC or inverting converter. Capable of generating 12V at 550mA or –12V at 350mA from a 5V input, the LT3580 is ideal for many local power supply designs.

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The LTC3217 is a low noise charge pump DC/DC converter designed to power four high current LEDs. The LTC3217 requires only four small ceramic capacitors and two current set resistors to form a complete LED power supply and current controller. Built-in soft-start circuitry prevents excessive inrush current during start-up and mode changes. High switching frequency enables the use of small external capacitors. Independent high and low current settings are programmed by two external resistors. Shutdown mode and current output levels are selected via two logic inputs. The current through the LEDs is programmed via ISET1 and ISET2. In addition, the brightness can be controlled by pulse width modulation of the EN2 pin. The charge pump optimizes efficiency based on the voltage across the LED current sources. The part powers up in 1x mode and w

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The LT ®3465/LT3465A are step-up DC/DC converters designed to drive up to six LEDs in series from a Li-Ion cell. These devices integrate the Schottky diode required externally on competing devices. Additional features include output voltage limiting when LEDs are disconnected, one-pin shutdown and dimming control. The LT3465 has internal soft-start.

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LTC2483 is a 16-bit high-precision analog-to-digital converter that uses a 2-Wire I2C interface. It has no latency, zero differential input current, etc., and can directly sample and convert high-impedance sensors. It is used in weighing scales, temperature measurement, strain gauge transducers, etc.

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The document introduces the LT3464 micropower boost DC/DC converter, which features a small size, low quiescent current, integrated Schottky diode and output disconnect circuit, and provides short-circuit protection. It supports internal reference voltage override function.

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The LT1776 is a wide input range, high efficiency Buck (step-down) switching regulator. It can accept input voltages as high as 60V and contains an output switch rated at 700mA peak current. Current mode control delivers excellent dynamic input supply rejection and short-circuit protection.

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The LTC1155 is a dual high side gate driver that allows the use of low-cost N-channel FETs for high side switching applications. It fully enhances an N-channel MOSFET without the need for external components. Its micropower operation allows use in virtually all systems with maximum efficiency.

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The LT3474 is a fixed frequency step-down DC/DC converter designed to operate as a constant-current source.

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The LTC3216 is a low noise, high current charge pump DC/DC converter designed to power high current LEDs. The part includes an accurate programmable current source capable of driving loads up to 1A from a 2.9V to 4.4V input. Low external parts count (two flying capacitors, two programming resistors and two bypass capacitors at VIN and CPO) make the LTC3216 ideally suited for small, battery-powered applications. Built-in soft-start circuitry prevents excessive inrush current during start-up.

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The LT ®1678/LT1679 are dual/quad rail-to-rail op amps offering both low noise and precision:

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The LTC1623 SMBus switch controller is a slave device that controls two high-side N-channel MOSFETs on either the SMBus or the I2C bus. It operates with an input voltage from 2.7V to 5.5V and has a low standby current of 14µA. It has 16 available switches on the same bus and supports a VIL of 0.6V and VIH of 1.4V for DATA and CLK. It is suitable for computer peripheral control, laptop computer power plane switching, portable equipment power control, industrial control systems, and handheld equipment.

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This datasheet provides details about the LT6220/LT6221/LT6222's features, including low voltage, high frequency signal processing, driving A/D converters, rail-to-rail buffer amplifiers, active filters, video amplifiers, fast current sensing amplifiers, etc.

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The LTC3215 is a low noise, high current charge pump DC/DC converter designed to power high current LEDs. The part includes an accurate programmable current source capable of driving loads up to 700mA from a 2.9V to 4.4V input. Low external parts count (two flying capacitors, one programming resistor and two bypass capacitors) makes the LTC3215 ideally suited for small, battery-powered applications. Built-in soft-start circuitry prevents excessive inrush cur- rent during start-up. High switching frequency enables the use of small external capacitors. LED current is pro- grammed with an external resistor. The LED is discon- nected from VIN during shutdown. An ultralow dropout current source maintains accurate LED current at very low I

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This document introduces the LTC2484/LTC2484F 24-bit No Latency ∆Σ analog-to-digital converter, which uses patented Easy Drive technology to eliminate dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current.

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The LTC ®3722-1/LTC3722-2 phase shift PWM controllers provide all of the control and protection functions necessary to implement a high efficiency, zero voltage switched (ZVS), full bridge power converter.

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The LTC3219 is a highly integrated multidisplay LED driver. The device contains a high efficiency, low noise charge pump to provide power to nine universal LED current sources. The LTC3219 requires only five small ceramic capacitors to form a complete LED power supply and current controller. The maximum display currents are set by an internal precision current reference. Independent dimming, On/Off, blinking and gradation control for all current sources is achieved via the I2C serial interface. 6-bit linear DACs are available for adjusting brightness levels for each universal LED current source. The LTC3219 charge pump optimizes efficiency based on the voltage across the LED current sources. The device powers up in 1x mode and will automatically switch to boost mode whenever any enabled LED current source begins to enter dropout. The first dropout switches the IC into 1.5x mode and a subsequent dropout switches the LTC3219 into 2x mode. The part resets to 1x mode whenever a data register is updated via the I2C port.

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The LT1776 is a wide input range, high efficiency Buck (step-down) switching regulator.

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LTC4217 is an integrated solution for Hot Swap applications that allows a board to be safely inserted and removed from a live backplane. The part integrates a Hot Swap controller, power MOSFET and current sense resistor in a single package for small form factor applications. It provides separate inrush current control and an accurate 2A current limit with current fold-back limiting. The current limit threshold can be adjusted dynamically using an external pin. Additional features include a current monitor output that amplifies the sense resistor voltage for ground referenced current sensing and a MOSFET temperature monitor output. Thermal limit, overvoltage, undervoltage and powergood monitoring are also provided.

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LTC4218 is a Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. Its features include a wide operating voltage range, adjustable current limit, current monitor output, adjustable current limit timer, overvoltage, undervoltage and powergood monitoring, etc.

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