DC1417A: Demo Board for the LT6230 215MHz, Rail-to-Rail Output, 1.1nV√Hz, 3.5mA Op Amp Family.

Demonstration circuit 1428A features the dual output LT3645 step-down regulator plus linear regulator. The circuit is designed to convert a 5V to 36V (55V transients) input source to 3.3V at 500mA using the buck regulator and this output is linear regulated down to provide 2.5V at 200mA. Thus the two outputs provide 300mA (buck) and 200mA (LDO).

Demonstration circuit 1433 is an adjustable 5A linear regulator featuring the LT3070. The LT3070 is a low dropout voltage, UltraFast™ transient response linear regulator. The device supplies up to 5A of output current with a typical dropout voltage of 85mV. A 0.01μF reference bypass capacitor decreases output voltage noise to 25μVRMS. The LT3070’s high bandwidth permits the use of low ESR ceramic capacitors. Output voltage is digitally selectable in 50mV increments over a 0.8V to 1.8V range. The demo board has a 1.2V to 3V input voltage range and a 2.5V to 3.6V BIAS voltage range. A margining function allows the user to tolerance system output voltage in increments of ±1%, ±3% or ±5%. To maintain proper performance and regulation, the BIAS supply voltage must be higher than the IN supply voltage. For a given VOUT, the BIAS voltage must satisfy the following conditions: 2.2 ≤ VBIAS ≤ 3.6V and VBIAS ≥ (1.25 · VOUT + 1V). For VOUT ≤ 0.95V, the minimum bias voltage is limited to 2.2V.

Demonstration circuit 1439A is an adjustable dual monolithic step-down switching regulator with two adjustable power-on reset timers and an adjustable watchdog timer. The regulator operates off inputs up to 36V and withstands transients up to 60V. The two buck outputs are capable of generating up to 800mA each and both of them have independent RUN/SS function.

Demonstration circuit 1514A feature the LT3579 in A Boost Regulator configuration. The Boost is designed to convert a 5V to 10V input source to 12V at 1.75A. DC1514A is designed to survive output short circuit events with the external MOSFET installed at the input as default. The board includes an option to install the MOSFET at the output side. The LT3579 includes a 42V Master and Slave switch combination with 6A total current and can be used in many configurations such as Boost, SEPIC, Cuk and Flyback.

Demonstration circuit 1517A is a monolithic high voltage isolated flyback converter featuring the LT3511. This demo circuit is designed for a 5V isolated output from an input voltage range of 36V to 75V. The maximum output current is up to 300mA. The circuit doesn’t require an opto-isolator, due to the output voltage being sensed directly from the primary side transformer winding. A third winding off the transistor is used to bias the LT3511 for highest efficiency.

DC1524A-A: Demo Board for the LTC5588-1 200MHz to 6000MHz Quadrature Modulator with Ultrahigh OIP3.

The LTC2313-14 is a 14-bit, 2.5Msps, serial sampling A/D converter that draws only 5mA from a single 3V or 5V supply. The LTC2313-14 contains an integrated low drift reference and reference buffer providing a low cost, high performance (20ppm/?C maximum) and space saving solution. The LTC2313-14 achieves outstanding AC performance of 77dB SINAD and ?85dB THD while sampling at 2.5Msps. The extremely high sample rate-topower ratio makes the LTC2313-14 ideal for compact, low power, high speed systems. The supply current decreases at lower sampling rates as the device automatically enters nap mode after conversions.The LTC2313-14 has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3V and 5V logic. The fast 2.5Msps throughput with no cycle latency makes the LTC2313-14 ideally suited for a wide variety of high speed applications.? Bits LTC2313-12 12 LTC2313-14 14 Applications Communication Systems High Speed Data Acquisition Handheld Terminal Interface Medical Imaging Uninterrupted Power Supplies Battery Operated Systems Automotive

DC1573A is an 8-Channel High Voltage Boost LED Driver featuring the LT3760. The LT3760 drives up to 100mA per string and has a maximum LED string voltage of 45V. The VIN terminal is powered from an 10V to 14V input supply and is distinct from the 24V PVIN supply (20V to 28V) for best thermal performance. Overvoltage protection is set at 55V in case the LEDs are removed from the circuit. If the LEDs are opened, the FAULT terminal output flag goes low and reports the fault condition.  If one or more of the 8 LED channels is not used, its LED pin or terminal should be tied to VOUT (LED+) to disable it. Multiple channels can be tied in parallel by tying their LED1-LED8 pins together.

Demonstration circuit 1585A is an adjustable 3A linear regulator featuring the LT3083 in the DD-PAK-5 package. Architected as a precision current source and voltage follower, the LT3083 can be used in many applications requiring high current, adjustability to zero output, and no heat sink. Internal protection circuitry includes current limiting and thermal limiting.The device brings out the collector of the pass transistor to allow low dropout operation when used with multiple supplies. The demo board oprerates with an input supply voltage range of 1.7V to 23V. A control voltage bias supply that is 1.2V to 1.4V higher than the input voltage is required for proper regulation. A key feature of the LT3083 is its wide output voltage range. The DC1585A's jumper-selectable output voltage can be set to 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V, or a user-selectable value. DC1585A can be used as a high current linear regulator, a post regulator for switching supplies, a variable voltage supply or a low output voltage power supply.