Demonstration circuit DC1663A features the LTM4628EV, the high efficiency, high density, dual 8A output, switch mode step-down power module. The input voltage is from 4.5V to 26.5V. The output voltage is programmable from 0.6V to 5.5V. Output current derating is necessary for certain VIN, VOUT, and thermal conditions. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the MODE jumper (JP1) selects pulse-skipping mode for noise sensitive applications or Burst Mode® operation in less noise sensitive applications. The DC1663A sets the LTM4628EV default switching frequency to 400kHz; however the frequency is resistor programmable from 250kHz up to 780kHz.

DC1672A: Demo Board for LTC3816 Single-Phase Wide VIN Range DC/DC Controller for Intel IMVP-6/IMVP-6.5 CPUs.

Demonstration Circuit 1674A-A is dual input power manager/3.5A Li-Ion battery charger with I2C control and USB On-The-Go (OTG). The dual input multiplexer, overvoltage protection (OVP) and reverse voltage protection (RVP) is implemented with external N-channel MOSFETs. An onboard buck regulator generates the VOUT voltage from the active input voltage. This voltage is regulated to minimize the dissipation in the battery charger. The minimum voltage of the VOUT regulator is 3.5V to provide an instant-on function when the battery is fully discharged. Most functions on the LTC4155EUFD are controlled via the I2C serial interface. The LTC4155EUFD also provides extensive status information via the I2C serial interface.

The LTC3115-1 is a high voltage monolithic synchronous buck-boost DC/DC converter. Its wide 2.7V to 40V input and output voltage ranges make it well suited to a wide variety of automotive and industrial applications. A proprietary low noise switching algorithm optimizes efficiency with input voltages that are above, below or even equal to the output voltage and ensures seamless transitions between operational modes.Programmable frequency PWM mode operation provides low noise, high efficiency operation and the ability to synchronize switching to an external clock. Switching frequencies up to 2MHz are supported to allow use of small value inductors for miniaturization of the application circuit. Pin selectable Burst Mode operation reduces standby current and improves light load efficiency which, combined with a 3?A shutdown current, make the LTC3115-1 ideally suited for battery-powered applications. Additional features include output disconnect in shutdown, short-circuit protection and internal soft-start. The LTC3115-1 is available in thermally enhanced 16-lead 4mm ? 5mm ? 0.75mm DFN and 20-lead TSSOP packages. Features LTC3115-1 - LTC3115-2 Optimized for applications subject to fast (

Demonstration circuit 1695 is a Low Quiescent Current, Synchronous Buck Converter featuring the LTC3891EFE. DC1695 converts a 4.5V-60V voltage source to 3.3V at 5.0A. The main features of the board include an internal LDO for power gate driver from VIN or EXTVCC, RUN and PGOOD pins and a Mode selector that allows converter to run in CCM, Pulse Skipping or Burst Mode operation, selectable current limit. DC1695 supports also adjustable output voltage, Soft-Start and Tracking. Synchronization to an external clock is possible as well. The wide input voltage range of 4.5V to 60V is suitable for automotive or other battery fed application and Distributed DC Power Systems where low quiescent current is important.

DC1699A-B: Demo Board for the LT6108 High Side Current Sense Amplifier with Reference and Comparator.

The LTC5591 is part of a family of dual-channel high dynamic range, high gain downconverting mixers covering the 600MHz to 4.5GHz RF frequency range. The LTC5591 is optimized for 1.3GHz to 2.3GHz RF applications. The LO frequency must fall within the 1.4GHz to 2.1GHz range for optimum performance. A typical application is a LTE or W-CDMA multichannel or diversity receiver with a 1.7GHz to 2.2GHz RF input and low side LO.The LTC5591?s high conversion gain and high dynamic range enable the use of lossy IF filters in high selectivity receiver designs, while minimizing the total solution cost, board space and system-level variation. A low current mode is provided for additional power savings and each of the mixer channels has independent shutdown control.Applications 3G/4G Wireless Infrastructure Diversity Receivers (LTE, W-CDMA, TD-SCDMA, UMTS, GSM1800) Remote Radio Unit MIMO Multichannel Receivers

DC1716A: Demo Board for the LTC2473 Selectable 208sps/833sps, 16-Bit I2C ΔΣ ADCs with 10ppm/°C Max Precision Reference.

The LT3086 is a multi-feature, low dropout, low noise 2.1A linear regulator that operates over a 1.4V to 40V input supply range. Dropout voltage at 2.1A is typically 330mV. One resistor sets output voltage from 0.4V to 32V. Output voltage tolerance is guaranteed to ?2% over line, load and temperature. The LT3086 is stable with ceramic output capacitors, requiring a minimum of 10?F.The LT3086?s programmable cable drop compensation cancels output voltage errors caused by resistive connections to the load. A master/slave configuration allows paralleling of multiple devices for higher load current and heat spreading without external ballast resistor requirements.Output current and temperature monitoring along with a power good flag provide system diagnostic and debug capability. Internal fault circuitry includes thermal shutdown and current limit with foldback. Thermal limit and current limit are also externally programmable.Packages include the thermally enhanced 16-lead (5mm ? 4mm) DFN, 16-lead TSSOP, 7-lead DD-Pak and 7-lead TO-220.APPLICATIONS Programmable Linear Regulator Post Regulator for Switching Supplies USB Power Supplies High Reliability Power Supplies

Demonstration circuit 1730A features the LT3973, a monolithic step-down switching regulator which consumes only 2.5μA quiescent current. The demo circuit is designed for a 5V, 750mA output from a 5.6V to 42V input. The wide input range of the LT3973 allows a variety of input sources including automotive batteries and 24V industrial supplies. In order to reduce the number of components and solution size, the catch diode and boost diode are integrated. The switching frequency is adjustable up to 2.2MHz. At light loads, the regulator operates in Burst Mode® to maintain high efficiency and low output ripple.

Demonstration circuit 1740A is a PolyPhase® synchronous buck converter featuring the LTC3880EUJ, a dual-phase current mode controller with PMBus interface and digital power system management functions. The DC1740A-A is a two chip 4-phase single-output configuration. The default output setting is VOUT0 = 1.2V/80A. The DC1740A powers up to default settings and produces power based on configuration resistors or with non-volatile memory (NVM) settings without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter aspects of the LTC3880. To fully explore the extensive digital power management features of the parts, download the GUI software LTpowerPlay™ onto your PC and use LTC’s I2C/SMBus/PMBus Dongle DC1613A to connect to the board.

The LTM2883 is a complete galvanic 6-channel digital ?Module? (micromodule) isolator. No external components are required. A single 3.3V or 5V supply powers both sides of the interface through an integrated, isolated DC/DC converter. A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.Available options are compliant with SPI and I2C (master mode only) specifications.The isolated side includes ?12.5V and 5V nominal power supplies, each capable of providing more than 20mA of load current. Each supply may be adjusted from its nominal value using a single external resistor.Coupled inductors and an isolation power transformer provide 2500VRMS of isolation between the input and output logic interface. This device is ideal for systems where the ground loop is broken, allowing for a large common mode voltage range. Communication is uninterrupted for common mode transients greater than 30kV/?s.Applications Isolated SPI or I2C Interfaces Industrial Systems Test and Measurement Equipment Breaking Ground Loops

DC1751A-B: Demo Board for the LTM9010-14 - 14-Bit, 105Msps Low Power Octal ADCs

The LTM9008-14/LTM9007-14/LTM9006-14 are 8-channel, simultaneous sampling 14-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. AC performance includes 73dB SNR and 90dB spurious free dynamic range (SFDR). Low power consumption per channel reduces heat in high channel count applications. Integrated bypass capacitance and flowthrough pinout reduces overall board space requirements.DC specs include ?1LSB INL (typ), ?0.3LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 1.2LSBRMS.The digital outputs are serial LVDS to minimize the number of data lines. Each channel outputs two bits at a time (2-lane mode). At lower sampling rates there is a one bit per channel option (1-lane mode).The ENC+ and ENC? inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An internal clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.Applications Communications Cellular Base Stations Software Defined Radios Portable Medical Imaging Multichannel Data Acquisition Nondestructive Testing

The LTC3880/LTC3880-1 are dual, PolyPhase DC/DC synchronous step-down switching regulator controllers with an I2C-based PMBus compliant serial interface. The controllers use a constant frequency, current mode architecture that is supported by LTpowerPlay? software development tool with graphical user interface (GUI).Switching frequency, output voltage, and device address can be programmed using external configuration resistors. Parameters can be set via the digital interface or stored in EEPROM. Voltage, current, internal/external temperature and fault status can be read back through the bus interface. The LTC3880 incorporates a 5V linear regulator while the LTC3880-1 uses an external 5V supply for minimum power loss. See comparison to LTC3887 below. VOUT Start-Up Time Max VOUT0/1 Fast ADC Mode for 1 Parameter LTC3887/LTC3887-1 35ms 5.5V/5.5V No LTC3880/LTC3880-1 120ms 4V/5.4V No Applications High Current Distributed Power Systems Telecom, Datacom and Storage Systems Intelligent Energy Efficient Power Regulation

Demonstration circuit 1759A features the LTM4620AEV, the high efficiency, high density, dual 13A, switch mode step-down power module regulator. The input voltage is from 5.5V to 16V. The output voltage is programmable from 0.6V to 5V. DC1759A can deliver 13A maximum current from each channel. As explained in the data sheet, output current derating is necessary for certain VIN, VOUT, and thermal conditions. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the MODE jumper (JP1) selects pulse-skipping mode for noise sensitive applications or Burst Mode® operation in less noise sensitive applications. Two outputs can be connected in parallel for a single 26A output solution with optional jumper resistors. The board allows the user to program how its output ramps up and down through the TRACK/SS pin. The output can be set up to either coincidentally or ratiometrically track with another supply’s output. Remote output voltage sensing is available for improved output voltage regulation at the load point.

DC1760A Demo Board for: LTC2261-14 14-Bit, 125Msps Ultra-Low Power 1.8V ADCs LTC6409 10GHz GBW, 1.1nV/√Hz Differential Amplifier/ADC Driver

DC1762A-E: Demo Board for the LTC2161 16-Bit, 40Msps Low Power ADCs.

DC1763A-D: Demo Board for the LTC2192 16-Bit, 65Msps Low Power Dual ADCs.

DC1774A-C: Demo Board for the LTC6431-15 50Ω Gain Block IF Amplifier.