Capable of converting 2.5V to 7V main-power system rails to point-of-load voltages as low as 0.6V, a 20A DC/DC step-down µModule regulator has been released by Linear Technology. The LTM4639 is suitable for cloud-based equipment and RAID systems where 3.3V is preferred as the main power distribution rail. In complex rack-mount systems, improved voltage conversion efficiency results in savings in energy consumption, thermal management and eq...

High accuracy temperature sensors improve system performance and reliability. By Christoph Schwoerer, Design Section Leader, and Gerd Trampitsch, Design Engineer, Linear Technology.

A 3A µModule step-down regulator, offered in an ultrathin 1.8mm profile LGA package with a 6.25x6.25mm footprint, has been released by Linear Technology. Measuring less than 2mm with solder paste, the LTM4623 meets the height restrictions of many PCIe and AMC for AdvancedTCA carrier cards in embedded computing systems. 

Delivering up to 250W of power with a single IC, the LT3790 from Linear Technology is a synchronous buck-boost DC/DC controller. A 4.7-60V input voltage range makes it suitable for a wide variety of automotive and industrial applications, whilst output voltage can be set from 0 to 60V, making the controller suitable as a voltage regulator or battery/supercapacitor charger.

Linear introduces the LTC2983 high performance digital temperature measurement IC which directly digitises RTDs, thermocouples, thermistors and external diodes with 0.1°C accuracy and 0.001°C resolution. A high performance AFE combines low noise and low offset buffered ADCs with all the necessary excitation and control circuits for each sensor.

A 3.5A, 42V input capable synchronous step-down switching regulator has been introduced by Linear Technology. The LT8610AC's Burst Mode operation keeps quiescent current under 2.5µA in no-load standby conditions, while synchronous rectification delivers efficiency as high as 96%.

Providing current, power and energy monitoring of the intermediate bus input to Point-of-Load (PoL) converters, a four-channel PMBus digital power system manager has been released by Linear Technology. By providing the energy consumed, reported in joules, and the elapsed time through a PMBus interface, the LTC2975 relieves computation and polling.

Featuring a synchronous rectification topology, the LT8609, a 2A, 42V input synchronous step-down switching regulator, has been released by Linear Technology. Avoiding critical noise-sensitive frequency bands, such as AM radio, the topology delivers 93% efficiency while switching at 2MHz.

A 400mA, 40V step-down switching regulator with dual tracking LDO outputs has been released by Linear Technology. Operating from a VIN range of 4.3-40V with transient protection to 60V, the LT3668 is particularly suitable for automotive and industrial applications. Up to 400mA can be delivered by the internal 600mA switch and distributed to the combined loads of the primary output and both of the tracking LDOs.

Offering linearity of +51dBm OIP3 (Output Third Order Intercept), a 20MHz-2GHz differential input and output 20dB gain amplifier has been released by Linear Technology. The LTC6430-20, which provides 2.9dB noise figure at 240MHz, features an OP1dB (Output 1dB Compression Point) of +23.9dBm.

Embedded automotive and industrial systems, backup battery charging, energy harvesting and thin film battery products are typical applications for Linear Technology’s LTC4079 60V, constant-current/constant-voltage 250mA multi-chemistry battery charger. The device’s low quiescent current linear topology offers a simple inductorless design and accepts a wide 2.7V to 60V input voltage range.

Designed to power 5V USB applications, the LT3697 35V input capable, step-down switching regulator has been released by Linear Technology. With 60V transient protection, the regulator uses programmable cable drop compensation to deliver 5V regulation at 2.5A to a remote USB port.

Designed for high speed and high dynamic range transimpedance amplifier (TIA) and buffer applications, the LTC6268 and LTC6269 FET-input single and dual op amps have been released by Linear Technology. Resolving input currents from several femtoamps to amps, the devices utilise 3fA bias current at 25°C and 4pA max over the -40°C to 125°C temperature range.

Designed for DC supply rails in the 0 to 100V range, a high or low side charge, power and energy monitor has been released by Linear Technology. The LTC2946 monitor features a ±0.4% accurate, 12-bit ADC and external precision time base (crystal or clock), enabling measurement accuracy of more than ±0.6% for current and charge, and ±1% for power and energy.

The LT3999, a monolithic push-pull isolated DC/DC transformer driver, has been released by Linear Technology. Operating over an input voltage range of 2.7-36V, the driver is designed for power levels up to 15W. The driver, which features two 1A current limited power switches is, therefore, suitable for automotive, industrial, medical and military applications.

Suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs, Linear Technology has introduced the LT8580. The current mode, fixed frequency step-up DC/DC converter features an internal 1A, 65V switch and can be configured as either a boost, SEPIC or an inverting converter. 

Claiming to offer an improvement over alternative 14-bit DACs, the LTC2000 DAC offers exceptional spectral purity of 74dBc SFDR at 200MHz output. The 16-bit 2.5Gsps device, launched by Linear Technology, also offers better than 68dBc SFDR for output frequencies from DC to 1GHz. Due to the converter's 2.1GHz -3dB bandwidth, broadband or high frequency RF synthesis is possible in applications such as high-end instrumentation, broadband communi...

The LTC3853, a triple output synchronous step-down switching regulator controller, has been released by Linear Technology. Operating over a 4.5-24V input voltage range, the controller can produce output currents up to 20A per phase with output voltages of 0.8-13.5V. These H- and MP-grade versions, which have an efficiency up to 95%, are guaranteed over operating junction temperatures from -40 to +150&d...

A triple output step-down µModule regulator, featuring an integrated heat sink, has been introduced by Linear Technology. The LTM4634, which is offered in a 15x15x5.01mm BGA package, delivers full current on 5, 5 and 4A outputs. Featuring three DC/DC controllers, power switches and inductors, the regulator provides more than 70W of output power at 65°C ambient with 200LFM airflow.

The LTC4231, a quiescent current (IQ) controller which enables safe board or battery insertion and extraction, has been released by Linear Technology. To gently power up 2.7-36V systems, the device controls an external N-channel MOSFET, avoiding sparks, connector damage and system glitches. During normal operation quiescent current is 4µA, dropping to 0.3µA in shutdown mode.