The LTC2956, a wake-up timer with pushbutton control that manages 1.5-36V system power, has been released by Linear Technology. Using MCUs or real-time clocks to track timing overcomplicates many designs. 

  The LTC3899, a triple output, 29µA quiescent current, buck/buck/boost synchronous DC/DC controller which maintains output voltage regulation over a 2.2-60V input range, has been introduced by Linear Technology.

The LT8613 is a 6A, 42V input capable synchronous step-down switching regulator with integrated current sensing which has been introduced by Linear Technology. Synchronous rectification delivers efficiency as high as 95%, Burst Mode operation keeps quiescent current under 3µA in no-load standby conditions and its 3.4-42V input voltage range makes it suited for automotive and industrial applications.

Linear has introduced a high temperature RF Schottky peak power detector that operates from 600MHz to 15GHz, and has ultrafast detection response time of 7ns from a pulsed RF signal. The LTC5564H has an on-chip fast latchable comparator with a total detection and propagation delay of 9ns, response times which enable RF and microwave applications that slower devices cannot support.

Linear has released the LT3042, a low noise, high Power Supply Ripple Rejection (PSRR) low dropout voltage linear regulator. Its design features low spot noise of only 2nV/√Hz at 10kHz and 0.8µVRMS integrated output noise across a 10Hz to 100kHz bandwidth. Low frequency PSRR exceeds 90dB out to 10kHz and high frequency PSRR exceeds 75dB out to 3MHz, quieting noisy or high ripple input supplies.

Linear has announced the LT8312, a PFC boost controller that can achieve a power factor of greater than 0.99 by actively modulating the input current, allowing compliance with most harmonic current emission requirements. This device operates with current mode control and critical conduction mode, a variable frequency switching scheme that returns the current to zero in the inductor with every cycle.

To reduce field failures without the need for costly external protection devices, Linear Technology has released the LTC2875 CAN transceiver. In practical CAN systems, installation cross-wiring faults, ground voltage faults or lightning induced surge voltages can cause overvoltage conditions that exceed absolute maximum ratings of typical transceivers.

An 8-channel, 18-bit, 1Ms/s SAR (Successive Approximation Register) ADC with outstanding 100dB SNR performance has been released by Linear Technology. To configure the MUX and input range, the LTC2373-18 is equipped with a programmable sequencer that can store up to 16 control words. This allows users to mix and match fully differential and pseudo-differential input ranges with a variety of MUX channel configurations. 

Linear has announced a 140V input-capable high efficiency buck converter that delivers up to 400mA of continuous output current. Operating from an input voltage range of 4-140V, the LTC7138 is suitable for telecomms, industrial, avionics and automotive applications. The convertor utilises a programmable hysteretic mode design to optimise efficiency over a broad range of output currents.

The migration away from traditional X-ray imaging towards Direct Radiography (DR) is gaining momentum, now the initial ownership costs are decreasing and its benefits become more apparent. By Afshin Odabaee, Product Marketing Manager, µModule Power Products, Linear Technology.

A single IC, stand-alone multicell battery balancer for 12V lead acid batteries has been introduced by Linear Technology. To balance battery charge, the LTC3305 absorbs charge from higher voltage batteries and transfers it to lower voltage batteries. Charge is transferred using a lower capacity battery that is sequentially connected across the batteries in the stack. When absorbing charge, the battery also absorbs energy, adding to the total ener...

Designed for negative-to-negative or negative-to-positive DC/DC conversion, the LT8709 synchronous PWM controller has been introduced by Linear Technology. The device is unique in solving the problem of regulating a negative voltage with respect to system ground, without the need of complicated level shifting circuitry.

Generating and distributing the low jitter signals essential to clocking data converters with a high SNR, Linear has announced a low phase noise integer-N synthesiser core with an ultralow jitter clock distribution output section. The LTC6950 integrates a PLL which offers a normalised in-band phase noise floor of -226dBc/Hz and exceptionally low -274dBc/Hz normalised 1/f phase noise which stays intact going through the clock distribution section.

For systems requiring multiple low voltage power supplies, Linear Technology has released the LTC3371, a highly integrated general-purpose power management solution. Four synchronous buck converters are integrated within the power supply, each powered from independent 2.25-5.5V inputs, and each configurable to share up to four of eight available 1A power stages.

A 5A, 20VIN step-down µModule regulator in a 6.25x6.25x 5.01mm BGA package has been released by Linear Technology. With a few passive components, the LTM4625 fits into 0.5cm² on a double-sided PCB. The regulator incorporates the DC/DC controller, power switches, inductor and compensation components in a single package. 

The LT3014B, an LDO regulator capable of delivering 20mA output current manufactured by Linear Technology, has been released in a military MP grade version. Suitable for automotive, 48V telecomm backup supplies and industrial control applications, the device operates with a continuous input voltage range of 3-80V and generates output voltages from 1.22 to 60V with a low dropout of 350mV.

Elsevier has published 'Analog Circuit Design Volume Three: Design Note Collection', the next book in the 'Analog Circuit Design' series, edited by Bob Dobkin and John Hamburger. Co-founder of Linear Technology, Dobkin has been closely involved in the development of high performance linear ICs for more than 30 years and has generated many industry standard circuits. He also holds more than 100 patents pertaining to linear ICs.

The LT3007 PNP-based LDO featuring an ultralow 3µA quiescent current, manufactured by Linear Technology, has been released in a H grade version. The device has a +150°C junction temperature rating, enabling high temperature or high power automotive and industrial applications. Allowing operation in a wide range of applications, the LDO has a high input voltage capability, spanning 2.0 to 45V with an adjustable output voltage ranging fro...

A MIL-STD-1275D compliant surge stopper solution, demonstrated on evaluation board DC2150A, has been introduced by Linear Technology. Created by the United States Department of Defense, MIL-STD-1275D is a standard specifying the steady state and transient voltage characteristics of a military ground vehicle's 28VDC power supply.

A 5A, 42V input capable synchronous step-down switching regulator has been introduced by Linear Technology. Featuring Silent Switcher architecture and providing spread spectrum frequency modulation, the LT8640 reduces EMI/EMC emissions by more than 25dB. This is possible even with switching frequencies greater than 2MHz, enabling the device to pass the automotive CISPR25, Class 5 peak limits.