The LT8570 and LT8570-1 are PWM DC/DC converters. The LT8570 contains a 0.5A, 65V power switch, while the LT8570-1 contains a 0.25A, 65V power switch. The LT8570 and LT8570-1 can be configured as either a boost, SEPIC or inverting converter.The LT8570/LT8570-1 have an adjustable oscillator, set by a resistor from the RT pin to ground. Additionally, the LT8570/LT8570-1 can be synchronized to an external clock. The switching frequency of the part may be free running or synchronized, and can be set between 200kHz and 1.5MHz.The LT8570/LT8570-1 also feature innovative SHDN pin circuitry that allows for slowly varying input signals and an adjustable undervoltage lockout function.Additional features such as frequency foldback and softstart are integrated. The LT8570/LT8570-1 are available in tiny thermally enhanced 3mm ? 3mm 8-lead DFN and 8-lead MSOP packages.Applications VFD Bias Supplies TFT-LCD Bias Supplies GPS Receivers DSL Modems Local Power Supply

The LTC3890-3 is a high performance dual step-down switching regulator DC/DC controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz. Power loss and supply noise are minimized by operating the two controller output stages out-of-phase.The 50?A no-load quiescent current extends operating life in battery-powered systems. OPTI-LOOP? compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. A wide 4V to 60V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries.Independent TRACK/SS pins for each controller ramp the output voltages during start-up. Current mode control limits the inductor current during short-circuit conditions. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous conduction mode at light loads.For versions with different and/or additional features, see the LTC3890 family summary, Table 1, in the Pin Functions section of this data sheet. LTC3890 LTC3890-1 LTC3890-2 LTC3890-3 Adjustable Current Limit Yes No Yes No CLKOUT/PHASMD for Multiphase Operation Yes No Yes No Number of PGood Outputs 2 1 2 1 OVP ? Bottom Gate Crowbar Yes Yes No No Current Limit Foldback Yes Yes No No Light Load Operation when Synced to External Clock Forced Continuous Forced Continuous Pulse Skipping Pulse Skipping SENSE Pins Common Mode Range Common Mode < 0.5V Requires VFB < 0.65V Common Mode < 0.5V Requires VFB < 0.65V Not Dependant on VFB. Easy to make a non-synchronous Boost or SEPIC Not Dependant on VFB. Easy to make a non-synchronous Boost or SEPIC Package 5X5 QFN-32 SSOP-28 5X5 QFN-32 SSOP-28 Applications Automotive Always-On Systems Battery Operated Digital Devices Distributed DC Power Systems

The LTC2000 is a family of 16-/14-/11-bit 2.5Gsps current steering DACs with exceptional spectral purity.The single (1.25Gsps mode) or dual (2.5Gsps mode) port source synchronous LVDS interface supports data rates of up to 1.25Gbps using a 625MHz DDR data clock, which can be either in quadrature or in phase with the data. An internal synchronizer automatically aligns the data with the DAC sample clock.Additional features such as pattern generation, LVDS loopout and junction temperature sensing simplify system development and testing.A serial peripheral interface (SPI) port allows configuration and read back of internal registers. Operating from 1.8V and 3.3V supplies, the LTC2000 consumes 2.2W at 2.5Gsps and 1.3W at 1.25Gsps.Applications Broadband Communication Systems DOCSIS CMTS Direct RF Synthesis Radar Instrumentation Automatic Test Equipment

The HMC7357 is a three-stage GaAs pHEMT MMIC Medium Power Amplifier that operates between 5.5 and 8.5 GHz. The amplifier provides 29 dB of gain and +35 dBm of saturated output power at 34% PAE from a +8V supply. With an excellent Output IP3 of +41.5 dBm, the HMC7357 is ideal for linear applications such as high capacity point-to-point and point-to-multi-point radios or VSAT/SATCOM applications demanding +35 dBm of efficient saturated output power. The RF I/Os are internally matched to 50 Ohms for ease of use. The HMC7357 is packaged in a leadless 5x5 mm plastic surface mount package and is compatible with surface mount manufacturing techniques.Applications Point-to-Point Radios Point-to-Multi-Point Radios VSAT & SATCOM

The HMC7885 is a 32 W gallium nitride (GaN), monolithicmicrowave integrated circuit (MMIC) power amplifier (PA)module that operates between 2 GHz and 6 GHz, and is providedin an 18-lead hermetically sealed module. The amplifier typicallyprovides 21 dB of small signal gain and 45 dBm of saturated radiofrequency (RF) output power. The amplifier draws 2200 mA ofquiescent current (IDD) from a 28 V dc supply. The RF input andoutput are dc blocked and matched to 50 ? for ease of use.Applications Test and measurement equipment Communications Electronic warfare (EW) Military Traveling wave tube (TWT) replacements SATCOM Commercial and military radars

The HMC797APM5E is a GaAs MMIC pHEMT Distributed Power Amplifier which operates between DC and 22 GHz. The amplifier provides 15 dB of gain, +29 dBm of output power at 1 dB gain compression, +31 dBm of saturated output power, and 25% PAE while requiring 400 mA from a +10 V supply. With up to +41 dBm of output IP3, the HMC797APM5E is ideal for high linearity applications in military and space as well as test equipment where high order modulations are used. This versatile PA exhibits a positive gain slope from 2 to 20 GHz making it ideal for EW, ECM, Radar and test equipment applications. The HMC797APM5E amplifier I/Os are internally matched to 50 ? facilitating integration into mutli-chip-modules (MCMs), is packaged in a leadless QFN 5x5 mm surface mount package, and requires no external matching components.Applications Test Instrumentation Military & Space Fiber Optics

The HMC802ALP3E is a broadband bidirectional 1-bitGaAs IC digital attenuator in a low cost leadless sur-face mount package. This single positive control linedigital attenuator utilizes off chip AC ground capac-itors for near DC operation, making it suitable for awide variety of RF and IF applications. Covering DCto 10 GHz, the insertion loss is less than 3 dB typicaland attenuation accuracy is excellent at ?0.6 dB typ-ical. The attenuator also features a high IIP3 of +55dBm. One TTL/CMOS control input is used to selectthe attenuation state and a single Vdd bias of +5V isrequired. Applications Test equipment and sensors ISM, MMDS, WLAN,?WiMAX, WiBro Microwave radio & VSAT Cellular infrastructure

The HMC8205BF10 is a gallium nitride (GaN) broadband power amplifier delivering 45.5 dBm (35 W) with 38% power added efficiency (PAE) across an instantaneous bandwidth of 0.3 GHz to 6 GHz. No external matching is required to achieve full band operation. Additionally, no external inductor is required to bias the amplifier. Also, dc blocking capacitors for the RFIN and RFOUT pins are integrated into the HMC8205BF10.The HMC8205BF10 is ideal for pulsed or continuous wave(CW) applications, such as military jammers, wirelessinfrastructure, radar, and general-purpose amplification.The HMC8205BF10 amplifier is a 10-lead ceramic leaded chip carrier (LDCC).The HMC8205BCHIPS is a gallium nitride (GaN), broadbandpower amplifier that delivers 45.5 dBm (35 W) with 40% poweradded efficiency (PAE) across an instantaneous bandwidth of0.4 GHz to 6 GHz. No external matching is required to achievefull band operation. No external inductor is required to bias theamplifier. In addition, dc blocking capacitors for the RFIN andRFOUT pins are integrated into the HMC8205BCHIPS.The HMC8205BCHIPS is ideal for pulsed or continuous wave(CW) applications, such as military jammers, wirelessinfrastructure, radar, and general-purpose amplification.APPLICATIONS Military jammers Commercial and military radar Power amplifier stage for wireless infrastructure? Test and measurement equipment

The HMC832A is a 3.3 V, high performance, wideband, fractional-N, phase-locked loop (PLL) that features an integrated voltage controlled oscillator (VCO) with a fundamental frequency of 1500 MHz to 3000 MHz and an integrated VCO output divider (divide by 1, 2, 4, 6, ? 62) that enables the HMC832A to generate continuous frequencies from 25 MHz to 3000 MHz. The integrated phase detector (PD) and ?-? modulator, capable of operating at up to 100 MHz, permit wider loop bandwidths and faster frequency tuning with excellent spectral performance.Industry leading phase noise and spurious performance, across all frequencies, enable the HMC832A to minimize blocker effects, and to improve receiver sensitivity and transmitter spectral purity. A low noise floor (?160 dBc/Hz) eliminates any contribution to modulator/mixer noise floor in transmitter applications.The HMC832A is footprint compatible to the market leading HMC830 PLL with an integrated VCO. It features 3.3 V supply and an innovative programmable performance technology that enables the HMC832A to tailor current consumption and corresponding noise floor performance to individual applications by selecting either a low current consumption mode or a high performance mode for an improved noise floor performance.Additional features of the HMC832A include 12 dB of RF output gain control in 1 dB steps; an output mute function to automatically mute the output during frequency changes when the device is not locked; selectable output return loss; programmable differential or single-ended outputs, with the ability to select either output in single-ended mode; and a ?-? modulator exact frequency mode that enables users to generate output frequencies with 0 Hz frequency error; and a register configurable 3.3 V or 1.8 V serial port interface (SPI).Applications Cellular infrastructure Microwave radios WiMax, WiFi Communications test equipment CATV equipment DDS replacement Military Tunable reference sources for spurious-free performance

The HMC8415LP6GE is a gallium nitride (GaN), power amplifier, delivering 40 W (46 dBm) with more than 37.5% power added efficiency (PAE) across a bandwidth of 9 GHz to 10.5 GHz.The HMC8415LP6GE is ideal for pulsed applications, such as wireless weather, marine, and military radar applications.APPLICATIONS Weather radars Marine radars Military radars