The DC2733 is a demonstration system for the LTC4249, 65V Dual Electronic Circuit Breaker with Current Monitors. The LTC4249 provides dual independent 1.2A, 75mΩ circuit breakers that can function independently or work together in parallel. Each circuit breaker channel has its own enable, ready, and IMON pins. The DC2733 demo board gives access to both channels of the LTC4249, including the independent RDY and IMON outputs and the EN inputs. Resistors at the IMON pins set the circuit breaker thresholds as well as the IMON current-to-voltage gains. The IC draws power from the IN1 input.

The LTC7815 is a high performance triple output (buck/buck/boost) synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages. Constant frequency current mode architecture allows a phase-lockable switching frequency of up to 2.25MHz. The LTC7815 operates from a wide 4.5V to 38V input supply range. When biased from the output of the boost converter or another auxiliary supply, the LTC7815 can operate from an input supply as low as 2.5V after start-up.The 28?A no-load quiescent current extends operating runtime in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC7815 features a precision 0.8V reference for the bucks, 1.2V reference for the boost and a power good output indicator. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous inductor current mode at light loads.Applications Automotive Always-On and Start-Stop Systems Battery Operated Digital Devices Distributed DC Power Systems Multioutput Buck-Boost Applications

The LTC2404/LTC2408 are 4-/8-channel 2.7V to 5.5V micropower 24-bit A/D converters with an integrated oscillator, 4ppm INL and 0.3ppm RMS noise. They use delta-sigma technology and provide single cycle digital filter settling time (no latency delay) for multiplexed applications. The first conversion after the channel is changed is always valid. Through a single pin the LTC2404/LTC2408 can be configured for better than 110dB rejection at 50Hz or 60Hz ?2%, or can be driven by an external oscillator for a user defined rejection frequency in the range 1Hz to 120Hz. The internal oscillator requires no external frequency setting components. The converters accept any external reference voltage from 0.1V to VCC. With their extended input conversion range of ?12.5% VREF to 112.5% VREF the LTC2404/LTC2408 smoothly resolve the offset and overrange problems of preceding sensors or signal conditioning circuits. The LTC2404/LTC2408 communicate through a flexible 4-wire digital interface which is compatible with SPI and MICROWIRE? protocols.Applications Weight Scales Direct Temperature Measurement Gas Analyzers Strain-Gage Transducers Instrumentation Data Acquisition Industrial Process Control 6-Digit DVMs

DC968A-A Demo Board for: LT1952 Single Switch Synchronous Forward Controller LTC3900 Synchronous Rectifier Driver for Forward Converters LT4430 Secondary-Side Optocoupler Driver

DC968A-B Demo Board for: LT1952 Single Switch Synchronous Forward Controller LTC3900 Synchronous Rectifier Driver for Forward Converters LT4430 Secondary-Side Optocoupler Driver

Demonstration circuit 986 is a Triple Step-Down LED Driver featuring the LT3496EUFD. The LT3496 is a triple output DC/DC converter designed to operate as current sources for driving high current LEDs. Each ofthe three regulators on the demo board is independently operated. The default current for each output channel is 500mA. The output current should not exceed the rated current of the LEDs used.  The maximum voltage of an LED string the demo board can drive is limited by the duty cycle and the input voltage of the LT3496. The maximum power input voltage (PVIN ) is 45V. As a result, each channel of the demo board can drive up to ~31V total LED voltage. The LT3496's input voltage range is 3V to 30V (with 40V transients), however to minimize power dissipation the demo board uses a 3V to 5.5V supply.

The LTC3872 is a constant frequency current mode boost DC/DC controller that drives an N-channel power MOSFET and requires very few external components. The No RSENSE? architecture eliminates the need for a sense resistor, improves efficiency and saves board space.The LTC3872 provides excellent AC and DC load and line regulation with ?1.5% output voltage accuracy. It incorporates an undervoltage lockout feature that shuts down the device when the input voltage falls below 2.3V.High switching frequency of 550kHz allows the use of a small inductor. The LTC3872 is available in an 8-lead low profile (1mm) ThinSOT? package and 8-pin 2mm ? 3mm DFN package. LTC3872 LTC3872-1 Frequency Foldback In Current Limit Yes No Applications Telecom Power Supplies 42V Automotive Systems 24V Industrial Controls IP Phone Power Supplies

Demonstration circuit 995A is an adjustable 1.1A linear regulator featuring the LT3080. Architected as a precision current source and voltage follower, it allows this new regulator to be used in many applications requiring high current, adjustability to zero output, and no heat sink. The device brings out the collector of the pass transistor to allow low dropout operation when used with multiple supplies. The demo board's input supply voltage range is 2.3V to 25V. For proper regulation, the LT3080 has a control pin; the voltage on this pin must be 1.2V to 1.35V higher than the output voltage.The output voltage is jumper selectable and can be set to 1.8V, a value between 0V and 5V (using trimpot R2) or a user-defined value. A key feature of the LT3080 is its wide output voltage range. By using a reference current through a single resistor, the output voltage can be programmed to any level between zero and 36V. The DC995A has a reduced input voltage 25V due to input capacitor voltage rating. The DC995A can be used as a high current linear regulator, a post regulator for switching supply,a  variable voltage supply or a low output voltage power supply.

Demonstration circuit 999A is a wide input range, 3.3V, synchronous buck-boost converter featuring the LTC3533.  This circuit is designed to demonstrate the high level of performance, efficiency and small solution size attainable using this part in a buck-boost power supply. It operates at 1MHz and produces a regulated 3.3V from an input voltage range of 2.4V to 5.5V, and operates down to 1.8V with de-rated output current.

The HMC767LP6CE is a fully functioned Fractional-N Phase-Locked-Loop (PLL) Frequency Synthesizer with an integrated Voltage Controlled Oscillator (VCO). The input reference frequency range is DC to 350 MHz while the advanced delta-sigma modulator design in the fractional synthesizer allows both ultra-fine step sizes and very low spurious products. The highly integrated structure provides excellent phase noise performance over temperature, shock and process. In addition, the HMC767LP6CE offers frequency sweep and modulation features, external triggering, double-buffering, exact frequency control, phase modulation and more. The HMC767LP6CE is packaged in a leadless QFN 6 x 6 mm surface mount package.For theory of operation and register map refer to the 'PLLs w/ Integrated VCO - Microwave VCOs' Operating Guide.Applications VSAT Radio Microwave Point-To-Point Radios Test Equipment & Industrial Control Military End-Use Phased Array Applications FMCW Radar Systems