The LTC1751 family are micropower charge pump DC/DC converters that produce a regulated output voltage at up to 100mA. The input voltage range is 2V to 5.5V. Extremely low operating current (20?A typical with no load) and low external parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) make them ideally suited for small, battery-powered applications.The LTC1751 family operate as Burst Mode? switched capacitor voltage doublers to achieve ultralow quiescent current. They have thermal shutdown capability and can survive a continuous short circuit from Vout to GND. The PGOOD pin on the LTC1751-3.3 and LTC1751-5 indicates when the output voltage has reached its final value and if the output has an undervoltage fault condition. The FB pin of the adjustable LTC1751 can be used to program the desired output voltage or current. An optional soft-start capacitor may be used at the SS pin to prevent excessive inrush current during start-up.The LTC1751 family is available in an 8-pin MSOP package.Applications Li-Ion Battery Backup Supplies Local 3V and 5V Conversion Smart Card Readers PCMCIA Local 5V Supplies White LED Backlighting

DC333A-A: Demo Board for the LT5502 400MHz Quadrature IF Demodulator with RSSI.

DC344A: Demo Board for the LTC2420 20-Bit µPower No Latency Delta-Sigma ADC in SO-8

The LTC1928-5 is a doubler charge pump with an internal low noise, low dropout (LDO) linear regulator. The part is designed to provide a low noise boosted supply voltage for powering noise sensitive devices such as high frequency VCOs in wireless applicationsAn internal charge pump converts a 2.7V to 4.4V input to a boosted output, while the internal LDO regulator converts the boosted voltage to a low noise regulated output. The regulator is capable of supplying up to 30mA of output current. Shutdown reduces the supply current to

The LTC6101/LTC6101HV are versatile, high voltage, high side current sense amplifiers. Design flexibility is provided by the excellent device characteristics; 300?V Max offset and only 375?A (typical at 60V) of current consumption. The LTC6101 operates on supplies from 4V to 60V and LTC6101HV operates on supplies from 5V to 100V.The LTC6101 monitors current via the voltage across an external sense resistor (shunt resistor). Internal circuitry converts input voltage to output current, allowing for a small sense signal on a high common mode voltage to be translated into a ground referenced signal. Low DC offset allows the use of a small shunt resistor and large gain-setting resistors. As a result, power loss in the shunt is reduced.The wide operating supply range and high accuracy make the LTC6101 ideal for a large array of applications from automotive to industrial and power management. A maximum input sense voltage of 500mV allows a wide range of currents to be monitored. The fast response makes the LTC6101 the perfect choice for load current warnings and shutoff protection control. With very low supply current, the LTC6101 is suitable for power sensitive applications.The LTC6101 is available in 5-lead SOT-23 and 8-lead MSOP packages.Applications Current Shunt Measurement Battery Monitoring Remote Sensing Power Management

DC1116A: Demo Board for the LTC6103 Dual High Voltage, High Side Current Sense Amplifier

The LTC3562 is a quad high efficiency monolithic synchronous step-down regulator with an I2C interface. Two regulators are externally adjustable and can have their feedback voltages programmed between 425mV and 800mV in 25mV steps (Type A). The other two regulators are fixed output regulators whose output voltages can be programmed between 600mV and 3.775V in 25mV steps (Type B). All four regulators operate independently and can be put into pulse skip, LDO, Burst Mode operation, or forced Burst Mode operation through I2C control. The Type-A regulators have separate RUN pins that can be enabled if I2C control is unavailable. The 2.85V to 5.5V input voltage range makes the LTC3562 ideally suited for single Li-Ion battery-powered applications. At low output load conditions, the regulators can be switched into LDO, Burst Mode operation, or forced Burst Mode operation, extending battery life in portable systems. The quiescent current drops to under 100uA with all regulators in LDO mode, and under 0.1uA when all regulators are shut down.Switching frequency is internally set to 2.25MHz, allowing the use of small surface mount inductors and capacitors. All regulators are internally compensated. The LTC3562 is available in a low profile 3mm x 3mm QFN package.Applications Miscellaneous Handheld Applications with Multiple Supply Rails Personal Information Appliances Wireless and DSL Modems Digital Still Cameras MP3 Players Portable Instruments

The LT1328 is a photodiode receiver that supports IrDA? data rates up to 4Mbps as well as other modulation methods such as Sharp ASK and TV remote control. The LT1328 MSOP contains all the necessary circuitry to convert current pulses from an external photodiode to a digital TTL output while rejecting unwanted lower frequency interference. The LT1328 plus five external components is all that is required to make an IrDA compatible receiver.Power requirements for the LT1328 are minimal?a single 5V supply and 2mA of quiescent current. Internal high-pass filtering attenuates interfering signals such as sunlight, incandescent and fluorescent lamps and is selectable at Pin 7 for low or high data rates. The LT1328?s ease of use and flexibility make it an ideal solution for numerous other photodiode receiver applications. The LT1328 is available in the SO-8 as well as the tiny MSOP for size-critical applications.Applications IrDA Applications Sharp/Newton TV Remote Noncontact Telemetry Wireless Slave for Photographic Flash Keyless Entry Optical Data Transfer Infrared Home Control Systems

DC1133A-E: Demo Board for LTC2241-10 10-Bit, 210Msps ADC

DC1151A-C: Demo Board for LTC2274 16-Bit, 105Msps Serial Output ADC (JESD204)

The LTC2274 is a 105Msps, 16-bit A/D converter with a high speed serial interface. It is designed for digitizing high frequency, wide dynamic range signals with an input bandwidth of 700MHz. The input range of the ADC can be optimized using the PGA front end. The output data is serialized according to the JEDEC Serial Interface for Data Converters specification (JESD204).The LTC2274 is perfect for demanding applications where it is desirable to isolate the sensitive analog circuits from the noisy digital logic. The AC performance includes a 77.7dB Noise Floor and 100dB spurious free dynamic range (SFDR). Ultra low internal jitter of 80fs RMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ?4.5LSB INL and ?1LSB DNL (no missing codes) over temperature.The encode clock inputs, ENC+ and ENC?, may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. A clock duty cycle stabilizer allows high performance at full speed with a wide range of clock duty cycles.Applications Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems ATE

DC1151A-F: Demo Board for LTC2273 16-Bit, 80Msps Serial Output ADC (JESD204)

DC1162A-A: Demo Board for LTC4223 Dual Supply Hot Swap Controller for Advanced Mezzanine Card

Demonstration circuit 1167 is a monolithic step-down DC/DC switching regulator featuring the LT3685 in the MSOP-10 exposed pad package. The demo board provides 5V @ 2A from a 6.3V to 38V input and has transient protection up to 60V. The demo boards default switching frequency is 500kHz, but the LT3685 has a SYNC pin which allows frequency synchronization to an external clock over a 250kHz to 2MHz range.

Demonstration circuit 1176 is a step-down converter, using the LTC3411A monolithic synchronous buck regulator. The DC1176 has an input voltage range of 2.5V to 5.5V, and is capable of delivering up to 1.25A of output current. The output voltage of the DC1176 can be set to 1.8V, 2.5V or 3.3V using the appropriate jumper connection, or it can be set to an adjustable value down to 0.8V, the reference voltage of the LTC3411A.

DC1186A: Demo Board for the LTC2308 Low Noise, 500ksps, 8-Channel, 12-Bit ADC

DC1190A-B: Demo Board for the LTC2365 1Msps, 12-Bit Serial ADCs in TSOT-23

DC1190A-C: Demo Board for the LTC2362 500ksps, 12-Bit Serial ADCs in TSOT-23

DC1190A-E: Demo Board for the LTC2360 100ksps, 12-Bit Serial ADCs in TSOT-23

DC1192A: Demo Board for the LT6105 Precision, Rail-to-Rail Input Current Sense Amplifier