Linear Technology has announced the LTC6102, the most precise high side current sense amplifier available. Maximum input offset voltage of the LTC6102 is only 10uV and it can accept differential sense voltages up to 2V. The resulting 106dB of dynamic range allows the LTC6102 to resolve micro-amps from amps of current. Compared to other current sense amplifiers, the dramatically lower offset of the LTC6102 allows for proportionately lower sense re...

Linear Technology has introduced a new DC/DC uModule regulator that operates from lower voltage input supplies and occupies only 1.35cm2 of board area. The LTM4604 is the latest device in the LTM4600 family, and is a complete 4A regulator system with onboard controller, power switches, inductor and bypass capacitors enclosed and protected in an 9mm x 15mm LGA package. This DC/DC uModule regulator has a profile (height) of only 2.3mm and weighs a ...

Linear Technology has introduced the LTC2630, a family of 12-bit, 10-bit and 8-bit digital-to-analog converters (DACs) in tiny 2.1mm x 2mm SC70 packages - the smallest available DACs with an internal reference. The LTC2630 offers the choice of an internal 2.5V or 4.096V 10ppm/°C full-scale reference, providing nearly a 50% board space reduction over competing DACs with an internal reference. These single voltage output DACs achieve 12-bit DC per...

Linear Technology has announced the LTC3568, a high efficiency, 4MHz, synchronous buck regulator that delivers up to 1.8A of continuous output current from a 3mm x 3mm DFN package. Using a constant frequency and current mode architecture, the LTC3568 operates from an input voltage range of 2.5V to 5.5V, making it ideal for Li-Ion/Polymer battery inputs as well as 3.3V or 5V inputs for point-of-load applications. It can generate output voltages as...

Linear Technology has announced the LTC6400-20 and LTC6401-20, ADC drivers that achieve unprecedented performance on a single 3V supply. These fully differential amplifiers include gain setting resistors, simplifying the challenge of driving the highest performance high-speed ADCs. The LTC6400-20 provides a fixed gain of 20dB with -93dBc third-order intermodulation distortion (IMD3) performance and noise figure of 6.5dB for a 140MHz input frequen...

Linear Technology has introduced the LTC6081 and the LTC6082: CMOS Op-Amps that push the limits of precision with 3.5MHz gain-bandwidth and less than 90uV offset over the entire -40°C to +125°C temperature range. Featuring rail-to-rail input and output stages, the dual LTC6081 and quad LTC6082 achieve low frequency noise of just 1.3uVp-p and low input bias current of 1pA max at 25°C, making these amplifiers ideal for precision instrumentatio...

Linear Technology has introduced the LTC2450, a 16-bit delta sigma analog-to-digital converter (ADC) in an ultra-tiny 2mm x 2mm DFN package that enables performance upgrades to lower resolution systems. Designers of portable and space-constrained applications typically trade off space with performance, leading to use of microcontrollers with internal ADCs or lower resolution ADCs with preamplifier circuitry. These designs are typically complex an...

Linear Technology has announced the LTC3850, a 95% efficient, dual output synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages with coincident or ratiometric tracking. The 4V to 24V input range encompasses a wide variety of applications including most intermediate bus voltages and battery chemistries. The strong on-board driver allows the use of high power external MOSFETs to produce output currents u...

Linear Technology has introduced the LT4356, an overvoltage protection regulator, with overcurrent protection and inrush current limiting for high availability systems. In applications where electronic systems must cope with high voltage surges of short duration, such as load dump in automobiles, the LT4356 provides solid front-end protection for valuable, safety critical downstream components. The wide input operating range of 4V to 80V enables ...

Linear Technology has announced the LTC3557, a multi-function power management solution for Li-Ion/Polymer battery applications. The LTC3557 integrates a linear PowerPath manager, a standalone battery charger, ideal diode, three high efficiency synchronous buck regulators and an always-on LDO in a low-profile 4mm x 4mm QFN package. The powerpath manager seamlessly manages the transition between multiple input sources and power to the load, while ...

Linear Technology has announced the LTC3555, the first in a family of next generation multi-function power management solutions for Li-Ion/Polymer battery applications. The LTC3555 integrates a switching PowerPath manager, a standalone battery charger, an ideal diode, I2C control, three high efficiency synchronous buck regulators plus an always-on LDO, all in a compact, low-profile 4mm x 5mm QFN package. The LTC3555's PowerPath control feature ...

Linear Technology has announced the LTC3544, a quad channel, high efficiency, 2.25 MHz, synchronous buck regulator that delivers up to 300mA, dual 200mA and 100mA continuous outputs from a 3mm x 3mm QFN package. Using a constant frequency current mode architecture, the LTC3544 operates from an input voltage range of 2.25V to 5.5V, making it ideal for single-cell Li-Ion/polymer, or multicell alkaline/NiCad/NiMH applications. It can generate output...

Linear Technology has announced the LTC3219, an inductorless, low noise, high efficiency LED driver for cell phone displays and lighting. The IC provides nine individually configurable current sources for Main, Sub and RGB displays. Display currents are set via a precision internal current reference. The universal current sources can be digitally controlled with independent dimming, brightness, blinking, and gradation control, programmable via a ...

Linear Technology has introduced the LTC4264, a Power over Ethernet (PoE) interface controller for high-power Powered Device applications. The LTC4264 allows users to develop power-hungry applications beyond the IEEE 802.3af-mandated 12.95W limit, while still maintaining backward compatibility. The LTC4264 can deliver up to 35W for 2-pair systems and as much as 70W for 4-pair systems. To control turn-on surge current in the system, the LTC4264 i...

Linear Technology has introduced a complete family of low-power, precision 16-/14-/12-bit unbuffered voltage output digital-to-analog converters. Both the unipolar LTC2641 and bipolar LTC2642 draw only 120uA of supply current while settling to within 0.5LSB for a full-scale step in only 1us. These voltage output DACs feature a 0.5nV•s glitch impulse, which is key for AC applications such as waveform generation. Low glitch reduces the transient ...

Linear Technology has introduced the LTC2953-1, a high-reliability push-button controller that integrates supervisory voltage monitors and timers for tracking a switching regulator's input and output voltages. The LTC2953-1 uses a power-fail input (PFI) comparator and undervoltage lockout (UVLO) comparator to trigger software and hardware control outputs when the input supply drops below two separate threshold voltages.

Linear Technology has announced the LTC3563, a high efficiency, 2.25 MHz, synchronous buck regulator that can deliver up to 500mA of continuous output current from a 2mm x 2mm DFN package. Its output voltage is pin-selectable to either 1.28V or 1.87V, making it ideal for the latest generation of Agere cellphone baseband chipsets. Using a constant frequency and current mode architecture, the LTC3563 operates from an input voltage range of 2.5V to ...

Linear Technology has announced the LTC3218, an inductorless high current white LED driver that delivers up to 400mA of LED current. Its multi-mode architecture automatically switches between 1x or 2x boost modes, monitoring the voltage across the LED current source and switching modes only when ILED dropout is detected. The LTC3218 utilizes an internal high side sense resistor to regulate LED current. This enables low dropout operation and allow...

Linear Technology has introduced the LTC2917, a single voltage supervisor capable of monitoring a wide 0.5V to 12V input range. The LTC2917 can monitor 27 unique pin-selectable thresholds, ranging from a 1V drained single AA battery up to 12V industrial applications. Competitive solutions require separate supervisors for each of these different voltage thresholds. The LTC2917 VCC supply also includes a 6.2V shunt regulator for monitoring input vo...

Linear Technology has announced the LT3508 a dual channel current mode PWM step-down DC/DC converter with two internal 40V, 2A power switches packaged in a 24-lead 4mm x 4mm QFN or TSSOP-16E package. Each channel is capable of delivering 1.4A of output current with efficiencies up to 89%. Its wide input range of 3.7V to 36V makes it ideal for regulating power from a wide variety of sources, including unregulated wall transformers, 24V industr...