LINEAR Manuals

LINEAR LT3012 handbook

The LT3012 is a high voltage, micropower low dropout linear regulator. The device is capable of supplying 250mA of output current with a dropout voltage of 400mV. Designed for use in battery-powered or high voltage systems, the low quiescent current (40µA operating and 1µA in shutdown) makes the LT3012 an ideal choice. Quiescent current is also well controlled in dropout. Other features of the LT3012 include the ability to operate with very small output capacitors. The regulators are stable with only 3.3µF on the output while most older devices require between 10µF and 100µF for stability. Small ceramic capacitors can be used without any need for series resistance (ESR) as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting and reverse current protection. The device is available with an adjustable output.

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LINEAR LT3010/LT3010-5 handbook

The LT3010/LT3010-5 is a low dropout linear regulator with a wide input voltage range of 3V to 80V. It features low quiescent current, low dropout voltage, and stability. The LT3010-5 has a fixed output voltage of 5V, while the LT3010 can adjust the output voltage from 1.275V to 60V. The regulator is equipped with various protection functions, including reverse-battery protection, current limiting, and thermal limiting.

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LINEAR TECHNOLOGY LT1945 handbook

The LT1945 is a dual micropower DC/DC converter from Linear Technology Corporation. It features a low quiescent current (20µA), high efficiency (90%+) and low standby current (<1µA). It is suitable for various portable applications.

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LINEAR LTC1863/LTC1867 handbook

The LTC1863/LTC1867 are 8-channel 12-/16-bit A/D converters with serial I/O and an internal reference. They are suitable for industrial process control, high-speed data acquisition, battery-operated systems, multiplexed data acquisition systems, imaging systems, and more. They have a sample rate of 200ksps, 16-bit no missing codes, ±2LSB max INL, an 8-channel multiplexer with single-ended or differential inputs and unipolar or bipolar conversion modes. They use SPI/MICROWIRE TM serial I/O, have a signal-to-noise ratio of 89dB, support single 5V operation, have an on-chip or external reference, low power consumption, and come in a 16-pin narrow SSOP package.

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LINEAR LM10 handbook

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LINEAR LT1510/LT1510-5 handbook

LT1510/LT1510-5 is a simple and efficient solution for fast-charging modern rechargeable batteries including lithium-ion (Li-Ion), nickel-metal-hydride (NiMH)*, and nickel-cadmium (NiCd)* that require constant-current and/or constant-voltage charging. It features an internal switch capable of delivering 1.5A DC current (2A peak current). The charging current programming is simplified with a 0.1Ω onboard current sense resistor, requiring only one resistor or a programming current from a DAC to set the full charging current (1.5A) within 5% accuracy. With 0.5% reference voltage accuracy, the LT1510 meets the critical constant-voltage charging requirement for lithium cells. It can charge batteries ranging from 2V to 20V, and does not require ground sensing of current, allowing the battery's negative terminal to be tied directly to ground. The chip operates with a saturating switch running at 200kHz (500kHz for LT1510-5), providing high charging efficiency and small inductor size. A blocking diode is not needed between the chip and the battery as the chip goes into sleep mode and drains only 3µA when the wall adaptor is unplugged. Soft start and shutdown features are also included.

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LINEAR LTC3406 LTC3406-1.5/LTC3406-1.8 Data Sheet

The LTC3406 is a high efficiency synchronous buck regulator that uses a constant frequency, current mode architecture. The supply current during operation is only 20µA and drops to ≤1µA in shutdown. The input voltage range is 2.5V to 5.5V and the output current is 600mA.

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LINEAR SYSTEMS J500 SERIES

The document describes the features and characteristics of the Siliconix J500 series products, including wide current range, no biasing required, maximum operating temperature, etc.

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LINEAR SYSTEMS SD5000/5001/5400/5401 QUAD N-CHANNEL LATERAL DMOS SWITCH ZENER PROTECTED

The SD5000/5400 series of monolithic switches features four individual double-diffused enhancement-mode MOSFETs built on a common substrate. These bidirectional devices provide low on-resistance and low interelectrode capacitances to minimize insertion loss and crosstalk. Built on Siliconix’ proprietary DMOS process, the SD5000/5400 series utilizes lateral construction to achieve low capacitance and ultra-fast switching speeds. For manufacturing reliability, these devices feature poly-silicon gates protected by Zener diodes.

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LINEAR LTC1391 Data Sheet

The LTC1391 is a high performance CMOS 8-to-1 analog multiplexer. It features a serial digital interface that allows several LTC1391s to be daisy-chained together, increasing the number of MUX channels available using a single digital port. The LTC1391 features a typical RON of 45Ω, a typical switch leakage of 50pA and guaranteed break-before-make operation. Charge injection is ±10pC maximum. All digital inputs are TTL and CMOS compatible when operated from single or dual supplies. The inputs can withstand 100mA fault current. The LTC1391 is available in 16-pin PDIP, SSOP and narrow SO packages. For applications requiring 2-way serial data transmission, see the LTC1390 data sheet.

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LINEAR LTC1283 Data Sheet

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LINEAR LTC2238/LTC2237/LTC2236 handbook

The LTC ®2238/LTC2237/LTC2236 are 10-bit 65Msps/ 40Msps/25Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals.

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LINEAR LTC1477/LTC1478 handbook

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LINEAR LTC1422 handbook

The LTC1422 is a hot swap controller from LTC that allows the board to be safely inserted and removed from a live backplane. It has a programmable delay system reset output, a programmable electronic circuit breaker, a user-programmable supply voltage power-up rate, a high side driver for an external N-channel FET, controls supply voltages from 2.7V to 12V, undervoltage lockout and a soft reset input.

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LINEAR LT1797 10MHz Rail-to-Rail Input Output Op Amp in SOT-23 handbook

The LT1797 is a unity-gain stable 10MHz op amp available in the small SOT-23 package that operates on all single and split supplies with a total voltage of 2.7V to 12V.

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LINEAR LT1765/LT1765-1.8/LT1765-2.5/ LT1765-3.3/LT1765-5 handbook

The LT1765 is a 1.25MHz monolithic buck switching regulator suitable for applications such as DSL modems, portable computers, regulated wall adapters, battery-powered systems, and distributed power. It features high efficiency, wide operating voltage range, low shutdown current, and synchronization.

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LINEAR LT1764 Series 3A Fast Transient Response Low Noise LDO Regulatorshandbook

The LT®1764 is a low dropout regulator optimized for fast transient response. The device is capable of supplying 3A of output current with a dropout voltage of 340mV. Oper- ating quiescent current is 1mA, dropping to <1µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. In addition to fast transient response, the LT1764 has very low output voltage noise which makes the device ideal for sensitive RF supply applications. Output voltage range is from 1.21V to 20V. The LT1764 regulators are stable with output capacitors as low as 10µF. Internal protection circuitry includes reverse battery pro- tection, current limiting, thermal limiting and reverse cur- rent protection. The device is available in fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V and as an adjustable device with a 1.21V reference voltage. The LT1764 regu- lators are available in 5-lead

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LINEAR LT1584/LT1585/LT1587 7A 4.6A 3A Low Dropout Fast Response Positive Regulators Adjustable Fixed handbook

LT1584/LT1585/LT1587 7A, 4.6A, 3A low dropout fast response positive regulators adjustable and fixed voltage

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LINEAR LT1500/LT1501 Adaptive-Frequency Current Mode Switching Regulators handbook

The LT ® 1500 is an adaptive-frequency current mode step-up switching regulator with an internal power switch that is rated up to 700mA. In contrast to pulse skipping switching regulators, the LT1500 uses a current mode topology that provides lower noise operation and im- proved efficiency. Only at very light loads is Burst Mode TM activated to give high efficiency and micropower opera- tion. High switching frequency (up to 500kHz) allows very small inductors to be used, along with ceramic capacitors if desired. The LT1500 operates with input voltages from 1.8V to 15V and has only 200µA operating current dropping to 8µA in shutdown. A low-battery comparator is included which stays alive in shutdown. A second output feedback pin with negative polarity allows negative output voltages to be regulated when the switcher is connected up as a Cuk or a flyback converter. Two package types are available. The LT1500 comes in a 14-pin SO package, with two options available for fixed output (3.3V or 5V) or adjustable operation. A reduced feature part, the LT1501, comes in the smaller 8-pin SO package with internal frequency compensation. It is also available in adjustable and fixed output voltage versions.

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