Linear Technology has announced the LTC3554, a micropower multifunction power management integrated circuit (PMIC) solution for portable Li-Ion/Polymer battery-based applications. The LTC3554 integrates a USB-compatible linear PowerPath™ manager, a stand-alone battery charger, two high efficiency synchronous buck regulators and pushbutton control in an ultra-thin (0.55mm) 3mm x 3mm QFN package.

Linear Technology Corporation announces the LT3991, a 1.2A, 55V step-down switching regulator with an integrated boost diode. Its Burst Mode® operation keeps quiescent current under 2.8µA in no load standby conditions. The LT3991's 4.3V to 55V input voltage range makes it ideal for automotive and industrial applications. Its internal 1.7A switch can deliver up to 1.2A of continuous output current to voltages as low as 1.19V.

Linear Technology has announced the LT3582, LT3582-5 and LT3582-12 dual channel DC/DC converters which deliver both positive and negative outputs required in many biasing applications such as active matrix OLED (organic light-emitting diode) displays as well as CCD (charge coupled device) applications. The LT3582/-5/-12 offer an I2C interface that can dynamically program output voltages, power sequencing and output voltage ramps as the applicatio...

Linear Technology has introduced the LTC4266, a 4-port Power over Ethernet (PoE) controller for Power Sourcing Equipment (PSE) required to provide IEEE 802.3at (25.5W) or proprietary higher power levels. Next-generation PoE applications call for more power to support demanding features, while increasing power efficiency in an effort to be more green and reduce costs. The LTC4266 provides up to 100W over 4-pair Ethernet cabling and is fully compli...

Linear Technology has announced the LT8415, a low noise micropower boost converter with integrated dual half-bridge switches. The LT8415's unique design scheme requires only 10.5uA of quiescent current, which is further reduced to 0uA in shutdown. Integrated high value (12.4M/0.4M) output feedback divider resistors enable the LT8415 to regulate a 16V output with less than 70uA of total input current. It’s very small 25mA switch current limit en...

Linear Technology has announced the LT3971, a 1.2A, 38V step-down switching regulator with an integrated boost diode. Its Burst Mode operation keeps quiescent current under 2.8µA in no load standby conditions. The LT3971's 4.3V to 38V input voltage range makes it ideal for automotive and industrial applications. Its internal 2.4A switch can deliver up to 1.2A of continuous output current to voltages as low as 1.19V.

Linear Technology has announced the LTC3854, a tiny 2mm x 3mm DFN-12 packaged, wide input voltage range synchronous step-down switching DC/DC controller that drives all N-channel power MOSFET stages. The 4V to 38V input range addresses a wide variety of applications, including most intermediate bus voltages and battery chemistries. The strong on-board MOSFET gate drivers enable high power external MOSFETs to produce output currents up to 20A with...

Linear Technology has introduced the LTC6246, LTC6247 and LTC6248, a family of op amps that utilizes a power-efficient SiGe process to achieve 180MHz gain-bandwidth product and 90V/µs slew rate, while consuming just 1mA maximum supply current per amplifier. These single, dual and quad op amps also feature rail-to-rail inputs and outputs, and 4.2nV/√Hz wideband noise.

Linear Technology Corporation has introduced the LTC4274, a single-channel Power over Ethernet (PoE) controller for power sourcing equipment (PSE) required to provide IEEE 802.3at (25.5W) or proprietary higher power levels. Next-generation PoE applications call for more power to support demanding features, while increasing power efficiency in an effort to be more green and reduce costs.

Linear Technology Corporation introduces the LTC3855, a dual output high efficiency (up to 95%) synchronous step-down DC/DC controller with multiphase operation, differential output voltage sensing and integrated phase-lock loop (PLL) synchronization. Up to 12 phases can be paralleled and clocked out of phase to minimize input and output filtering requirements for high current applications (up to 200A).

Linear Technology has announced the LTC3632, a 50V input-capable synchronous buck converter that delivers up to 20mA of continuous output current from a 3mm x 3mm (or MSOP8-E) package. It operates from an input voltage range of 4.5V to 50V with protection up to 60V, making it ideal for automotive and industrial 4mA to 20mA control loop applications.

Linear Technology has introduced the LTC2754-16, a quad 16-bit current output digital-to-analog converter (DAC) that achieves ±1LSB integral nonlinearity (INL) and differential nonlinearity (DNL). All four DACs can be software programmed or pin-strapped for one of six unipolar or bipolar output ranges via a simple 4-wire serial interface. Software programmability eliminates the need for expensive precision resistors, gain stages and manual jumpe...

Linear Technology has announced the LTC3775, a low minimum on-time wide input voltage range synchronous step-down DC/DC switching regulator controller that drives all N-channel power MOSFET stages. With less than a 30ns minimum on-time, the LTC3775 is well suited for high step-down ratios. The 4.5V to 38V input range encompasses a wide variety of applications, including most intermediate bus voltages and battery chemistries. The powerful onboard ...

Linear Technology announces the LTC3606B, a 2.25MHz, synchronous buck regulator with programmable average input current limit. It can deliver up to 800mA of continuous output current with efficiencies as high as 96%. Using a constant frequency and current mode architecture, the LTC3606B operates from an input voltage range of 2.5V to 5.5V, making it ideal for single-cell Li-Ion and USB applications. It can generate output voltages as low as 0.6V,...

Linear Technology has announced the LTC554x family of four new high dynamic range downconverting mixers covering the 700MHz to 4GHz wireless infrastructure frequency range. The LTC554x mixers offer outstanding IIP3 (input third-order intercept) of 26dBm, low noise figures of 9-10dB and high conversion gain of 8dB, enabling excellent dynamic range performance for both main receivers and digital predistortion receivers.

Linear Technology has announced the LT3757, a wide input range DC/DC controller for boost, flyback, SEPIC and inverting power supply applications, capable of generating either positive or negative regulated output voltages. The LT3757 has two voltage feedback error amplifiers and reference voltages. One set is for positive output voltages, with a 1.60V reference voltage, the other is for negative output voltages, with a -0.80V reference voltage, ...

Linear Technology has introduced the LTC2460 and the LTC2462, a pair of 16-bit delta sigma ADCs that integrate a precision reference in a tiny 3mm x 3mm DFN package. The integrated reference (2ppm/°C Typ, 10ppm/°C Max) allows precise measurements and alleviates the need for an external reference, a key benefit for space-constrained applications. Both ADCs guarantee 16-bit no missing code resolution. This makes the LTC2460 and LTC2462 a complete...

Linear Technology Corporation introduces a complete 1A DC/DC regulator system-in-a-package, the LTM8031. This is the second member of Linear's new electromagnetic-compatible DC/DC µModule family. The LTM8031 includes the inductor, switching DC/DC controller, power switches, filters and all support components housed in a 9mm x 15mm x 2.82mm land grid array package.

Linear Technology has announced the LTC3631, a 45V input-capable synchronous buck converter that can deliver up to 100mA of continuous output current. It operates from an input voltage range of 4.5V to 45V with transient protection up to 60V, making it ideal for automotive and industrial control loop applications. The LTC3631 utilizes internal synchronous rectification and a programmable peak current mode design to optimize efficiency in lower cu...

A low frequency direct conversion quadrature modulator from Linear Technology Corporation offers superior linearity performance and low noise to enhance the dynamic range performance of basestation transmitters. The LTC5598 offers best-in-class +27.7 dBm OIP3 (Output 3rd Order Intercept) and +74 dBm OIP2 (Output 2nd Order Intercept) performance. In addition, the device has an exceptionally low noise floor of -160 dBm/Hz at a +5 dBm output level. ...