The HMC447LC3 is a low noise Divide-by-4 Regenerative Divider utilizing InGaP GaAs HBT technology. This wideband divider operates with input frequencies from 10 to 26 GHz, and accepts a very wide range of input power levels. THe HMC447LC3 exhibits a very low SSB Phase Noise of -150 dBc/Hz at 100 kHz offset, making it ideal for use in high frequency Phase Locked Loops (PLL), and in Local Oscillator (LO) distribution applications where fundamental and divided LO frequencies are required within a system.This versatile divider consumes only 96 mA from a single positive supply of +5V, and delivers very flat output power across the rated bandwidth. The HMC447LC3 is housed in a RoHS compliant, 3x3 mm leadless SMT package with an exposed ground paddle.APPLICATIONS Point-to-Point/Multi-Point Radios? VSAT Radios? Fiber Optic? Test Equipment? Military

The HMC376LP3 & HMC376LP3E are GaAs PHEMT MMIC Low Noise Amplifiers that are ideal for GSM & CDMA cellular basestation front-end receivers operating between 700 and 1000 MHz. The amplifier has been optimized to provide 0.7 dB noise figure, 15 dB gain and +36 dBm output IP3 from a single supply of +5V. The HMC376LP3(E) feature an externally adjustable supply current which allows the designer to tailor the linearity performance of the LNA for each application. For applications which require improved noise figure, please see the HMC617LP3(E).Applications Cellular/3G Infrastructure Base Stations & Repeaters CDMA, W-CDMA, & TD-SCDMA Private Land Mobile Radio GSM/GPRS & EDGE UHF Reallocation Applications

The HMC3587LP 3BE is a HBT Gain Block MMI C amplifier covering 4 GHz to 10 GHz and packaged in a 3x3 mm plastic QFN SM T package. This versatile amplifier can be used as a cascadable IF or RF gain stage in 50 Ohm applications. The HMC3587LP 3BE delivers 14.5 dB gain, and +13 dBm output P1dB with only 3.5 dB noise figure.Applications Cellular / PCS / 3G Fixed Wireless & WLAN CATV, Cable Modem & DBS Microwave Radio & Test Equipment IF & RF Applications

The HMC720LP3E is a 1:2 Fanout Buffer designed to support data transmission rates up to 14 Gbps, and clock frequencies as high as 14 GHz.All differential inputs to the HMC720LP3E are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. Outputs can be connected directly to a 50 Ohm ground-terminated system or drive devices with CML logic input. The HMC720LP3E also features an ouput level control pin, VR, which allows for loss compensation or signal level optimization. The HMC720LP3E operates from a single -3.3 V supply and is available in ROHS-compliant 3x3 mm SMT package.?APPLICATIONS 16 G Fiber Channel RF ATE Applications Broadband Test & Measurement Serial Data Transmission?up to 13 Gbps Clock Buffering up to 13 GHz

The HMC613LC4B is a Successive Detection Log Video Amplifier (SDLVA) which operates from 0.1 to 20 GHz. The HMC613LC4B provides a logging range of 59 dB. This device offers typical fast rise/fall times of 4/18 ns and a superior delay time of 14 ns. The HMC613LC4B log video output slope is typically 14 mV/dB. Maximum recovery times are less than 30 ns. The HMC613LC4B is available in a highly compact 4x4 mm SMT ceramic package and is ideal for high speed channelized receiver applications.APPLICATIONS EW, ELINT & IFM Receivers DF Radar Systems ECM Systems Broadband Test & Measurement Power Measurement & Control Circuits Military & Space Applications

The HMC724 is a 1:2 Fanout Buffer designed to support data transmission rates up to 14 Gbps, and clock frequencies as high as 14 GHz. All differential inputs and outputs are DC coupled and terminated on chip with 50 Ohm resistors to ground. The outputs may be used in either single ended or differential modes, and should be AC or DC coupled into 50 Ohm resistors connected to ground.All differential inputs to the HMC724 are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. The differential CMl outputs are source terminated to to 50 Ohms and may also be AC or DC coupled. Outputs can be connected directly to a 50 Ohm ground-terminated system or drive devices with CML logic input. The HMC724 operates from a single -3.3 V supply and is available in ROHS-compliant 3x3 mm SMT package.APPLICATIONS 16 G Fiber Channel RF ATE Applications Broadband Test & Measurement Serial Data Transmission up to 14 Gbps Clock Buffering up to 14 GHz

HMC717ALP3E - Amplifier 4.8GHz ~ 6GHz Evaluation Board

Demonstration circuit 2596A is a high performance bidirectional buck-boost converter featuring the LT®8708 that can operate from input voltages above, below or equal to the output voltage. The demo board input range is 36V to 75V. The output voltage is set at 48V and the output current limit at 6A. The controller has integrated input voltage and output voltage regulators and two sets of input and output current regulators that control current flow in forward or reverse direction. Features are included that simplify bidirectional power conversion in battery/capacitor backup systems and other applications that may need regulation of VIN, VOUT, IIN and/or IOUT. While the current mode control limits the inductor current both in normal and in reverse direction these current limits have some variation as input/output voltage changes. The forward and reverse input and output current regulators offer four accurate current limits that can be set individually. The input voltage regulator is often used in applications with high impedance power sources and will reduce the forward current if the input voltage drops below the set point. When operating with reverse current flow the input voltage regulator regulates the voltage at the input side. The operating mode of the controller is determined through the MODE pin (jumper JP7 Pins 5 to 12) and can be set to discontinuous mode, hybrid discontinuous mode, forced continuous mode and Burst Mode® Operation. The LT8708 is capable of bidirectional operation when operating in the continuous conduction mode (CCM). DCM, HCM and Burst Mode operation only allow power to flow in one direction. Additional circuitry may be needed depending on the application. By feeding the LT8708 from a separate low voltage supply the power dissipation can be reduced. The LT8708 will start when >5.5V voltage is applied at the input (VIN pin), and when it is running it will draw current from the EXTVCC pin if the voltage at the pin is > 6.4V. Typical efficiency with 5A load is above 96.3% across a 36V to 75V input range. The LT8708 data sheet gives a complete description of the part, operation and application information. The data sheet should be read in conjunction with this quick start guide for DC2596A. The input voltage range of the LT8708 itself is 2.8V (need EXTVCC > 6.4V) to 80V and the output range is 1.3V to 80V. The LT8708EUHG is assembled in a 40-Lead (5mm × 7mm) plastic QFN package with a thermal pad underneath the chip. Proper board layout is essential for maximum thermal and electrical performance. See the data sheet Circuit Board Layout Checklist section.

The ADP1052 is an advanced digital controller with a PMBus? interface targeting high density, high efficiency, dc-to-dc power conversion. This controller implements voltage mode control with high speed, input line feedforward for enhanced transient and improved noise performance. The ADP1052 has six programmable pulse-width modulation (PWM) outputs capable of controlling most high efficiency power supply topologies, with added control of synchronous rectification (SR). The device includes adaptive dead time compensation to improve efficiency over the load range, and programmable light load mode operation, combined with low power consumption, to reduce system standby power losses.The ADP1052 implements several features to enable a robust system of parallel and redundant operation for customers that require high availability or parallel connection. The device provides synchronization, reverse current protection, prebias startup, accurate current sharing between power supplies, and conditional overvoltage techniques to identify and safely shut down an erroneous power supply in parallel operation mode.The ADP1052 is based on flexible state machine architecture and is programmed using an intuitive GUI. The easy to use interface reduces design cycle time and results in a robust, hardware coded system loaded into the built-in EEPROM. The small size (4 mm ? 4 mm) LFCSP package makes the ADP1052 ideal for ultracompact, isolated dc-to-dc power module or embedded power designs.APPLICATIONS High density isolated dc-to-dc power supplies Intermediate bus converters High availability parallel power systems Server, storage, industrial, networking, and communications infrastructure

The ADP1621 is a fixed-frequency, pulse-width modulation (PWM), current-mode, step-up converter controller. It drives an external n-channel MOSFET to convert the input voltage to a higher output voltage. The ADP1621 can also be used to drive flyback, SEPIC, and forward converter topologies, either isolated or nonisolated.The ADP1621 eliminates the use of a current-sense power resistor by measuring the voltage drop across the on resistance of the n-channel MOSFET. This technique, allowed up to a maximum voltage of 30 V at the switch node, maximizes efficiency and reduces cost. For switch-node voltages higher than 30 V or for more accurate current limiting, the CS pin can be connected to a current-sense resistor in the source of the MOSFET. The slope compensation is implemented by an external resistor, allowing a wide range of external components (inductors and MOSFETs), and can be chosen for various switching frequencies and input and output voltages.The ADP1621 supply input voltage range is 2.9 V to 5.5 V, although higher input voltages are possible with the use of a small-signal NPN pass transistor or a single resistor. The voltage of the power input can be as low as 1 V for fuel cell applications. The switching frequency is set by an external resistor over a range of 100 kHz to 1.5 MHz and can be synchronized to an external clock by using the SDSN pin. The shutdown quiescent current is less than 10 ?A. The ADP1621 has a thermal shutdown feature that shuts down the gate driver when the junction temperature reaches approximately 150?C. The internal soft start circuit limits inrush current at startup. The ADP1621 is available in the 10-lead MSOP lead-free package and is specified over the ?40?C to +125?C junction temperature range.Applications APD bias Portable electronic equipment Isolated dc-to-dc converter Step-up/step-down dc-to-dc converter LED driver for laptop computer and navigation system LCD backlighting