The LT5520 mixer is designed to meet the high linearity requirements of wireless and cable infrastructure transmission applications. A high-speed, internally matched, LO amplifier drives a double-balanced mixer core, allowing the use of a low power, single-ended LO source. An RF output transformer is integrated, thus eliminating the need for external matching components at the RF output, while reducing system cost, component count, board area and system-level variations. The IF port can be easily matched to a broad range of frequencies for use in many different applications.The LT5520 mixer delivers 15.9dBm typical input 3rd order intercept point at 1.9GHz with IF input signal levels of ?10dBm. The input 1dB compression point is typically 4dBm. The IC requires only a single 5V supply.Applications Wireless Infrastructure Cable Downlink Infrastructure Point-to-Point Data Communications High Linearity Frequency Conversion

Demonstration circuit 662 is a monolithic step-down DC/DC switching converter featuring the LT1933 in the TSOT-23-6 package. The board is optimized for 3.3V output at up to 500mA load current and requires an input voltage ranging from 4.5V to 36V.

Demonstration circuit 663 is a 2-phase dual synchronous high efficiency step-down DC/DC converter featuring the LTC3736EUF controller. The LTC3736 features Burst Mode operation at light loads. The demo board operates with a 2.7V to 8V input voltage range and provides outputs of 2.5V@5A and 1.8V@5A.

The LTC3737 is a 2-phase dual step-down switching regulator controller that requires few external components. The constant frequency current mode architecture provides excellent AC and DC load and line regulation. MOSFET VDS sensing eliminates the need for current sense resistors and improves efficiency. Power loss and noise due to the ESR of the input capacitance are minimized by operating the two controllers out of phase.Burst Mode operation provides high efficiency operation at light loads. 100% duty cycle provides low dropout operation and extends battery operating time.Switching frequency can be programmed up to 750kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications, the LTC3737 can be externally synchronized from 250kHz to 850kHz.Other features include a power good output voltage monitor, a tracking input and internal soft-start.The LTC3737 is available in the low profile thermally enhanced (4mm ? 4mm) QFN package or a 24-lead SSOP narrow package.Protected by U.S. Patents, including 5481178, 5731694, 5929620, 6144194, 6580258, 5994885Applications One or Two Lithium-Ion Powered Devices Notebook and Palmtop Computers, PDAs Portable Instruments Distributed DC Power Systems

DC665A: Demo Board for the LT4220 Dual Supply Hot Swap Controller.

Demonstration circuit 679 features the LT3463EDD in two circuits. One circuit is optimized for small size (9mA max output current) and the other for high performance (13mA max  output current). Both circuits are dual output ±20V voltage regulators with a 2.7V to 6V input voltage range. The positive regulator is a boost converter and the negative rail is an inverting charge pump.

Demonstration circuit 686, featuring the LTC3780 controller, is a high efficiency buck-boost DC/DC converter that can regulate its output from input voltages both above and below the output. The demo board delivers 12V@5A from an input range of 5V to 32V.

DC699A-A: Demo Board for the LTC1749 12-Bit, 80Msps Wide Bandwidth ADC.

Demonstration circuit DC702 is a 2.25 MHz step-down converter, using the LTC3406B-2 adjustable output monolithic synchronous buck regulator. The DC702 has an input voltage range of 2.5V to 5.5V, and is capable of delivering up to 600 mA of output current at a minimum input voltage of 3V. the output voltage is set to 1.8V. The DC702 is made for noise sensitive applications, due to the LTC3406B-2 operating in pulse-skipping mode at low load currents.

The LT3024 is a dual, micropower, low noise, low dropout regulator. With an external 0.01?F bypass capacitor, output noise drops to 20?VRMS over a 10Hz to 100kHz bandwidth. Designed for use in battery-powered systems, the low 30?A quiescent current per output makes it an ideal choice. In shutdown, quiescent current drops to less than 0.1?A. Shutdown control is independent for each output, allowing for flexibility in power management. The device is capable of operating over an input voltage range of 1.8V to 20V. The device can supply 100mA of output current from Output 2 with a dropout voltage of 300mV. Output 1 can supply 500mA of output current with a dropout voltage of 300mV. Quiescent current is well controlled in dropout.The LT3024 regulator is stable with output capacitors as low as 1?F for the 100mA output and 3.3?F for the 500mA output. Small ceramic capacitors can be used without the series resistance required by other regulators.Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting and reverse current protection. The device is available as an adjustable device with a 1.22V reference voltage. The LT3024 regulator is available in the thermally enhanced 16-lead TSSOP and 12-lead, low profile (4mm x 3mm x 0.75mm) DFN packages.Applications Cellular Phones Pagers Battery-Powered Systems Frequency Synthesizers Wireless Modems