Demonstration circuit DC339-B is a low noise micropower voltage regulator using the 300mA output current LT1962 linear regulator in an 8-lead MSOP package. The demo board has an input voltage range from 2.3V to 20V and a jumper-selectable output votlage that can be set to 1.22V, 2.5V, 3.0V, 3.3V, 5V or a user-defined value. The LT1962's low 20µVRMS (10Hz to 100kHz bandwidth) output noise and low 30µA quiescent current make the device ideal for voltage-controlled oscillators, RF power supplies and local regulators in larger systems.

DC355A: Demo Board for the LT1959 4.5A, 500kHz Step-Down Switching Regulator.

DC358A: Demo Board for the LTC2411 24-Bit No Latency Delta Sigma ADC with Differential Input and Reference in MSOP.

DC362A-A: Demo Board for the LTC1405 12-Bit, 5Msps, Sampling ADC.

DC373A-B: Demo Board for the LT1725 General Purpose Isolated Flyback Controller.

DC389A-B: Demo Board for LTC3778 Wide Operating Range, No RSENSE Step-Down Controller.

Demonstration Circuit 395A is a Low Noise, Charge Pump White LED Driver featuring the LTC3202. The LTC3202 is a fractional charge pump LED driver that operates from 2.7V to 4.5V (3.3V nominal) and provides up to 125mA of LED current. The demo board includes 6 white LEDs in parallel, supplying approximately 20mA of current per LED.  Controls pins D0 and D1 set the values for the internal 2-bit DAC, which allows LED current to be adjusted for LED brightness control.

The LT5511 mixer is designed to meet the high linearity requirements of cable TV infrastructure downstream transmitters and wireless infrastructure transmit systems. The IC includes a differential LO buffer amplifier driving a double-balanced mixer. The LO, RF and IF ports can be easily matched to a broad range of frequencies for different applications. The high performance capability of the LO buffer allows the use of a single-ended source, thus eliminating the need for an LO balun.The LT5511 mixer delivers +17dBm typical input 3rd order intercept point at 950MHz, and +15.5dBm IIP3 at 1900MHz, with IF input signal levels of ? 5dBm. The input 1dB compression point is typically +6dBm.Applications CATV Downlink Infrastructure Wireless Infrastructure High Linearity Mixer Applications

DC427B-A: Demo Board for the LTC1966 Precision Micropower, Delta Sigma RMS-to-DC Converter.

DC431A Demo Board for: LT1725 General Purpose Isolated Flyback Controller LTC1773 Synchronous Step-Down DC/DC Controller

DC439A-B: Demo Board for the LTC1929 2-Phase, High Efficiency, Synchronous Step-Down Switching Regulators.

DC440A: Demo Board for the LTC3732 3-Phase, 5-Bit VID, 600kHz, Synchronous Buck Switching Regulator Controller.

DC448A Demo Board for: LT3710 Secondary Side Synchronous Post Regulator LT3781 Bootstrap Start Dual Transistor Synchronous Forward Controller

The LTC1629-6 is a PolyPhase? synchronous stepdown current mode switching regulator controller with 0.6V reference that drives N-channel external power MOSFET stages in a phase-lockable fixed frequency architecture. The PolyPhase controller drives its two output stages out of phase at frequencies up to 300kHz to minimize the RMS ripple currents in both input and output capacitors. The output clock signal allows expansion for up to 12 evenly phased controllers for systems requiring 15A to 200A of output current. The multiple phase technique effectively multiplies the fundamental frequency by the number of channels used, improving transient response while operating each channel at an optimum frequency for efficiency. Thermal design is also simplified.An internal differential amplifier provides true remote sensing of the regulated supply?s positive and negative output terminals as required for high current applications.A RUN/SS pin provides both soft-start and optional timed, short-circuit shutdown. Current foldback limits MOSFET dissipation during short-circuit conditions when the overcurrent latchoff is disabled. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC1629-6 includes a power good output pin that indicates when the output voltage is inside the ?10% tolerance window.Applications Desktop Computers Internet Servers Large Memory Arrays DC Power Distribution Systems

DC456A: Demo Board for LTC3412 2.5A, 4MHz, Monolithic Synchronous Step-Down Regulator.

The LTC3727A-1 is a high performance dual step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages. A constant frequency current mode architecture allows phase-lockable frequency of up to 550kHz. Power loss and noise due to the ESR of the input capacitors are minimized by operating the two controller output stages out of phase.The LTC3727A-1 is an improved version of the LTC3727 family of parts. It has smaller output ripple while in the drop-out condition and shorter minimum on-time.OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. There is a precision 0.8V reference and a power good output indicator. A wide 4V to 30V (36V maximum) input supply range encompasses all battery chemistries.A RUN/SS pin for each controller provides soft-start. Current foldback limits MOSFET heat dissipation during short-circuit conditions. Output overvoltage protection circuitry protects the controller until VOUT returns to normal. VIN Range VREF Accuracy Over Temp Latch-Off Min On-Time LTC3727 4V - 36V ?1% No 180ns LTC3727-1 4V - 36V ?1% Yes 180ns LTC3727A-1 4V - 36V ?1% No 120ns LTC3727LX-1 4V - 32V ?1.5% No 120ns Applications Telecom Systems Automotive Systems Battery-Operated Digital Devices

The LTC3718 is a high current, high efficiency synchronous switching regulator controller for DDR and QDR? memory termination. It operates from an input as low as 1.5V and provides a regulated output voltage equal to (0.5)VIN. The controller uses a valley current control architecture to enable high frequency operation with very low on-times without requiring a sense resistor. Operating frequency is selected by an external resistor and is compensated for variations in VIN and VOUT. The LTC3718 uses a pair of standard 5V logic level N-channel external MOSFETs, eliminating the need for expensive P-channel or low threshold devices.Forced continuous operation reduces noise and RF interference. Fault protection is provided by internal foldback current limiting, an output overvoltage comparator and an optional short-circuit timer. Soft-start capability for supply sequencing can be accomplished using an external timing capacitor. OPTI-LOOP? compensation allows the transient response to be optimized over a wide range of loads and output capacitors.Applications Bus Termination: DDR/QDR Memory, SSTL, HSTL,... Servers, RAID Systems Distributed Power Systems Synchronous Buck with General Purpose Boost

DC479A Demo Board for: LT1783 1.25MHz, Over-The-Top Micropower, Rail-to-Rail Input and Output Op Amp in SOT-23 LTC1698 Isolated Secondary Synchronous Rectifier Controller LT3781 Bootstrap Start Dual Transistor Synchronous Forward Controller

DC482A: Demo Board for the LTC1983 100mA Regulated Charge-Pump Inverters in ThinSOT.

DC489A-A: Demo Board for the LTC5507 100kHz to 1GHz RF Power Detector.