DC904A-A: Demo Board for the LTC4076 Dual Input Standalone Battery Charger.

The LTC3773 is a high performance, 3-phase, triple output synchronous step-down switching regulator controller with output voltage power up/down tracking capability. The controller allows for sequential, coincident or ratiometric tracking.This 3-phase controller drives its output stages with 120? phase separation at frequencies of up to 700kHz per phase minimizing the RMS input current. Light load efficiency can be maximized by using selectable Burst Mode operation. The 0.6V precision reference supports output voltages from 0.6V to 5V.Fault protection features include output overvoltage, input undervoltage lockout plus current foldback under short-circuit or overload conditions.Applications Servers, Telecom, Industrial Power Supplies General Purpose Multiple Rail DC/DC FPGA and DSP Requirements

DC918C-F: Demo Board for the LTC2205 16-Bit, 65Msps ADCs.

DC918C-M: Demo Board for the LTC2201 16-Bit, 20Msps ADC.

DC919A-A: Demo Board for the LTC2207 16-Bit, 105Msps ADC.

DC919A-C: Demo Board for the LTC2205 16-Bit, 65Msps ADCs.

DC929A-A: Demo Board for the LTC4089 USB Power Manager with High Voltage Switching Charger.

DC929A-B: Demo Board for the LTC4089 USB Power Manager with High Voltage Switching Charger.

The LTC3530 is a wide VIN range, highly efficient, fixed frequency, buck-boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, two-cell alkaline or NiMH applications where the output voltage is within the battery voltage range.The LTC3530 is pin compatible with the LTC3440 buckboost DC/DC converter but adds programmable automatic Burst Mode operation and extends the VIN/VOUT range to 1.8V. Switching frequencies up to 2MHz are programmed with an external resistor. Automatic Burst Mode operation allows the user to program the load current threshold for Burst Mode operation using a single resistor from the BURST pin to GND.Other features include 1?A shutdown, short circuit protection, programmable soft-start control, current limit and thermal shutdown. The LTC3530 is available in a thermally enhanced 10-lead (3mm ? 3mm) DFN or MSOP package.Applications MP3 Players Handheld Instruments Digital Cameras Smart Phones Portable GPS Units Miniature Hard Disk Drive Power

DC941A: Demo Board for the LTC2482 16-Bit Delta Sigma ADC with Easy Drive Input Current Cancellation.

Demonstration circuit 943 is a complete power controller for a USB power device. It features the LTC6047 and provides a full-featured 1.25A linear lithium-ion CC/CV battery charger with timer termination and 4.2V charge voltage, a USB power manager, and a PowerPath manager for the battery. The USB input voltage range is 4.35V to 5.5V and the wall adapter input is 4.35V to 6V. It also features a programmable 1.5A input current limit that can be set at 500mA or 100mA for USB applications. The wall adapter input has overvoltage protection up to 13V. An external MOSFET disconnects the wall adapter when the voltage exceeds 6V.

The LT3478/LT3478-1 are 4.5A step-up DC/DC converters designed to drive LEDs with a constant current over a wide programmable range. Series connection of the LEDs provides identical LED currents for uniform brightness without the need for ballast resistors and expensive factory calibration.The LT3478-1 reduces external component count and cost by integrating the LED current sense resistor. The LT3478 uses an external sense resistor to extend the maximum programmable LED current beyond 1A and also to achieve greater accuracy when programming low LED currents. Operating frequency can be set with an external resistor from 200kHz up to 2.25MHz. Unique circuitry allows a PWM dimming range up to 3000:1 while maintaining constant LED color. The LT3478/LT3478-1 are ideal for high power LED driver applications such as automotive TFT LCD backlights, courtesy lighting and heads-up displays. One of two CTRL pins can be used to program maximum LED current. The other CTRL pin can be used to program a reduction in maximum LED current vs temperature to maximize LED usage and improve reliability.Additional features include inrush current protection, programmable open LED protection and programmable soft-start. Each part is available in a 16-pin thermally enhanced TSSOP Package.Applications High Power LED Driver Automotive Lighting

DC954A-B: Demo Board for the LT6402-12 300MHz Low Distortion, Low Noise Differential Amplifier/ADC Driver (AV = 12dB).

Demonstration Circuit 974 is a 100kHz to -500kHz programmable frequency, high voltage, current-mode DC/DC step-down converter featuring the LT3844. The operating frequency can be synchronized up to 600kHz. The board operates from a Vin range of 15V to -60V and outputs 12VOUT @ 4.2A (50W).

Demonstration circuit 976 is a Quadruple High Power LED Driver in Buck Mode featuring the LT3476EUHF. The LT3476 is a quad output, multitopology DC/DC converter designed to operate as a current source for driving high current LEDs. Each of the four regulators on the demo circuit is independently operated. The VIN power supply for the IC ranges from 2.8V to 16V. The PVIN power supply for the buck regulators ranges up to 33V. On the demo circuit, the default current for each output channel is 350mA but it can be adjusted up to 1.05A via resistor dividers at the VADJ pins. The output current should not exceed the rated current of the LEDs used. If 1W LEDs, such as the Lumileds Luxeon LEDs, are used, 350mA current is the maximum. 1A output current is reserved for 3W LEDs, such as Luxeon III. The input voltage is limited by the CAP pin overvoltage protection threshold. As a result, each channel of the demo circuit can drive up to 27V total LED voltage.

Demonstration circuits 1024A-A and 1024A-B are Micropower Low Noise Boost Converters With Output Disconnect featuring the LT3494 and LT3494A respectively. The demo circuits demonstrate small size and low component count in Boost configuration. Both demo versions are designed to convert a 3V-4.2V source to 15V. The only difference is in the load capability. The 1024A–A supplies 17mA at 3VIN while the 1024A–B supplies 27mA, also at 3VIN. The LT3494 features integrated Schottky diode, output disconnect function, dimming control, output sense resistor and non-audible switching frequency over the entire load range.

The LTC2952 is a power management device that features three main functions: pushbutton on/off control of system power, ideal diode PowerPath? controllers and system monitoring. The LTC2952?s pushbutton input, which provides on/off control of system power, has independently adjustable ON and OFF debounce times. A simple microprocessor interface involving an interrupt signal allows for proper system housekeeping prior to power-down. The ideal diode PowerPath controllers provide automatic low loss switchover between two DC sources by regulating two external P-channel MOSFETs to have a small 20mV forward drop. High reliability systems may utilize the LTC2952?s monitoring features to ensure system integrity. These features include: power-fail, voltage monitoring and ?P watchdog. The LTC2952 operates over a wide operating voltage range to accommodate a large variety of input power supplies. The part?s combination of low 20mV external MOSFET regulation and very low standby current matches battery powered and power conscious application requirements.Applications Desktop and Notebook Computers Portable Instrumentations Cell Phones, PDA and Handheld Computers Servers and Computer Peripherals Battery Backup Systems

Demonstration circuit 1038A-A is a 33W isolated flyback converter with synchronous rectification and primary-side regulation featuring the LT3837. This circuit was designed to demonstrate the high levels of performance, efficiency, and small solution size attainable using the part in a flyback power supply. It operates at 200kHz and produces a regulated 3.3V, 10A output from an input voltage range of 9V to 36V. Isolation voltage is 1500VDC.

Demonstration circuit 1045 is a Telecom isolated DC/DC converter featuring the LTC3805 constant frequency current mode flyback controller. The DC1045 converts 36V to 72V input voltage to an isolated 3A of output current at 3.3V. The 200kHz constant frequency operation is maintained down to very light load to reduce low frequency noise generated over a wide range of load current.

DC1048A: Demo Board for the LT5575 800MHz to 2.7GHz High Linearity Direct Conversion Quadrature Demodulator.