Dual 26.5VIN, 8A DC/DC μModule Regulator
Linear Technology Corporation introduces the LTM4628, μModule® regulator containing two step-down 8A DC/DC converter circuits with the inductors, MOSFETs and other necessary components in a 15mm x 15mm x 4.32mm LGA package. The low thermal impedance of the LGA package and high operating efficiency enable full output power DC/DC conversion from 12VIN to 1VOUT at 70°C ambient with no air flow, or 86°C ambient with 200 linear feet per minute. The LTM4628 is designed to convert supply voltages ranging from 4.5V to 26.5 to two lower output voltages ranging from 5.5V down to 0.6V with an impressive total DC output error of ±1.5% including line and load regulation. Each output delivers up to 8A. The LTM4628's tiny PCB footprint and reduced design time provide a compact, low height, quick to market point-of-load regulator solution for applications such as data storage, routers, network switches, industrial automation, avionics and medical equipment. Summary of Features: LTM4628
Linear Technology introduces the LTC5564, a precision RF power detector that operates from 600MHz to 15GHz, with exceptionally fast response time of 7ns from a pulsed RF signal. Moreover, the device has an on-chip fast comparator with a propagation delay of 9ns. The comparator threshold voltage is user-settable, enabling a flexible trip point. The device's output may be latched by asserting a latch-enable pin, permitting a fast capture of a short-duration, single-event signal or a fault condition. Its best-in-class performance enables unprecedented speed in timing measurements, rapid response to fault detection and RF power measurements in microwave systems. The LTC5564 can measure RF input signals from -24dBm to +16dBm. This dynamic range is provided by a programmable gain output amplifier with four gain settings, which are digitally controlled by two logic input pins that are binary-weighed. Thus improved sensitivity can be achieved when measuring low level signals. Moreover, the output amplifier is bandwidth capable of demodulating the envelope of an RF modulated signal up to 75MHz. The detector incorporates temperature compensation circuitry, enabling repeatable and stable RF power measurements under varying environmental conditions. The LTC5564's speed and frequency capabilities open up a wide range of useful applications, including microwave communications, telemetry, radar detectors, RF power amplifier monitoring and fault detection, automatic level control, test instrumentation and cellular networks. Summary of Features: LTC5564
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