Linear Technology has announced the LTC4358, a single high voltage ideal diode controller utilizing an internal 5A MOSFET to provide a simple, low loss replacement to Schottky diodes in high current applications. The controller and 20m Ohm internal N-channel MOSFET perform the function of a low forward voltage diode. This provides a lower loss path compared to the Schottky diode that in high current applications provides higher efficiency and pre...

Linear Technology has announced the LT3495/-1 low noise boost converters with integrated power switches, Schottky diodes and output disconnect circuitry. The LT3495 uses a 650mA switch whereas the LT3495-1 uses a 350mA switch. Both parts are packaged in a 2mm x 3mm DFN-10 package. Their wide 2.3V to 16V input voltage range enables them to operate from single cell Li-Ion batteries up to fixed 12V input rails, delivering outputs up to 40V.

Linear Technology has introduced the LTC4224, a compact, low voltage Hot Swap controller for protecting boards and backplanes that use two 1V to 6V voltage supplies. Systems, including fiber optic networks, will benefit from the simplified control with independent turn-on and adjustable ramp of the two supplies. In recent years, multisource agreements like XENPAK have defined fiber optic transceiver modules that provide transmission rates up to 1...

Linear Technology has introduced the LTC2631, a family of pin- and software-compatible 12-bit, 10-bit and 8-bit DACs in a tiny TSOT-23 package, making it the smallest I2C DAC family with an internal reference on the market today. DACs in such small packages are ideal for fine tuning bias voltages in applications such as optical networking and RFID systems. The LTC2631 makes the integrated 10ppm/°C reference output available to drive the referenc...

Linear Technology has announced the LTC3564, a high efficiency, 2.25MHz, synchronous buck regulator that can deliver up to 1.25A of continuous output current from a 2mm x 3mm DFN or ThinSOT package. Using a constant frequency current mode architecture, the LTC3564 operates from an input voltage range of 2.5V to 5.5V, making it ideal for Li-Ion battery inputs as well as 3.3V or 5V inputs for point-of-load applications.

Linear Technology has announced the LTC6930, a family of low power precision silicon oscillators with fixed frequencies from 32.768 kHz to 8.192 MHz. Five versions are available, each with a unique master frequency and digitally controlled frequency dividers that give 8 different frequencies per device.

Linear Technology has announced the LTC3567, the latest in a family of compact next-generation, multi-function power management solutions for Li-Ion/Polymer battery applications. The LTC3567 integrates a switching PowerPath manager, a stand-alone battery charger, a 1A high efficiency synchronous buck-boost regulator, an ideal diode and controller, I2C control, plus an always-on LDO, all in a compact, low-profile 4mm x 4mm QFN package.

Linear Technology has introduced the LTC4447, a high speed synchronous MOSFET driver designed to drive upper and lower power N-Channel MOSFETs in a synchronous rectified converter topology. This driver, combined with power MOSFETs and one of Linear Technology's DC/DC controllers, forms a complete high efficiency synchronous regulator that can be used as a step-down or step-up DC/DC converter.

Linear Technology has introduced the LTC3862, a 2-phase step-up (boost) DC/DC controller that delivers high output power in a compact footprint. Up to 12 power stages can be paralleled and clocked out-of-phase to minimize input and output filtering requirements. The 4V to 36V input voltage range and a wide output voltage range that is dependent on the choice of external components covers a broad range of high power boost applications.

Linear Technology has introduced the LTC3225, an inductorless programmable supercapacitor charger for addressing high peak power and battery backup needs in portable applications. The device employs a low-noise charge-pump architecture to charge two supercapacitors in series to a fixed output voltage (4.8V/5.3V selectable) from a 2.8V to 5.5V input supply.

Linear Technology has announced the LT3592, a 36V step-down DC/DC converter designed to operate as a constant current LED driver. Its internal 36V, 900mA switch enables it to drive up to six 500mA white LED in a single string from a 36V input for industrial and LED signage applications. It can also drive two 500mA LEDs from a 12V lead acid battery input for automotive applications.

Linear Technology has announced the LTC4446, a high frequency, high input supply voltage (100V) MOSFET driver designed to drive upper and lower N-Channel power MOSFETs in a 2-transistor forward converter. This driver, combined with power MOSFETs and one of Linear Technology's DC/DC controllers form a complete high efficiency 2-transistor forward converter or can be configured as a fast acting high voltage DC switch.

Linear Technology has announced the LT3755, a 60V, high-side current sense DC/DC converter designed to drive high current LEDs. Its 4.5V to 40V input voltage range makes it ideal for a wide variety of applications, including automotive, industrial and architectural lighting. The LT3755 uses an external N-channel MOSFET and can drive up to 14 1A white LEDs from a nominal 12V input, delivering in excess of 50 watts. It incorporates a high-side curr...

Linear Technology has announced the LT6107, a Military Plastic grade (MP-grade) high side current sense amplifier specified for operation from –55°C to 150°C. As an MP-grade device, the LT6107 is guaranteed and tested across the specified temperature range and is intended to meet the demands of automotive, military and industrial, and other harsh environment applications.

Linear Technology has introduced the LTM8021, a complete DC/DC uModule regulator point-of-load (POL) system with on-board inductor and power components in a package that resembles a surface-mount IC. The LTM8021 operates from input supplies from 3V to 36V (40Vmax) and delivers up to 500mA. The LTM8021's tiny footprint (6.25mm x 11.25mm), low profile (2.8mm) and light weight (0.49g), enable system designers to solder the device on the backside of ...

Linear Technology has introduced the LTC4110, an autonomous multi-chemistry, single chip, high efficiency flyback battery charge and discharge manager for server, memory backup, medical equipment, and high reliability system applications. The LTC4110 features four operating modes: battery backup, battery charge, no-loss battery calibration and shutdown. Combining all these in a single IC saves significant board area compared to existing solutions...

Linear Technology has introduced the LTC2934 and LTC2935, ultralow power supply monitors that only draw 500nA of quiescent current. Battery life is of the utmost importance in portable applications, where it is essential to reduce the amount of supply current the device draws during normal and standby operation. It is important to minimize quiescent current in supporting power components like voltage monitors in an effort to prolong battery life....

Linear Technology has announced the LTC3100, a triple output converter which includes a 700mA (ISW) synchronous boost regulator, a 250mA (IOUT) synchronous buck regulator and a 100mA (IOUT) LDO in a 3mm x 3mm QFN-16 package. Both the boost and the buck regulators switch at 1.5MHz and use current mode, synchronous topologies.

Linear Technology has introduced the LTM4616, a complete dual DC/DC uModule regulator system in a tiny surface mount package. The LTM4616 can regulate either two voltages ranging from 0.6V to 5V at up to 8A each, or one output voltage at up to 16A by sharing current from each output in a multi-phase configuration. The LTM4616’s versatility is extended by its ability to operate from either two different input supply rails ranging from 2.375V to ...

Linear Technology has announced the LTC3558, an efficient, multi-function power management solution for handheld applications. The LTC3558 integrates a stand-alone Li-Ion/Polymer battery charger and two high efficiency synchronous regulators - one buck-boost and one buck - and is offered in a compact low-profile 3mm x 3mm QFN package. The linear battery charger can deliver up to 950mA charge current from a wall adapter supply, or up to 500mA char...