Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.

Demonstration circuit 2432B features the LT6658, a precision dual output reference that combines the performance of a low drift low noise reference and a linear regulator. Demonstration circuits are available with 1.25V, 1.8V, 2.5V, 3.0V, 3.3V and 5V output option parts. Both outputs are ideal for driving the precision reference inputs of high resolution ADCs and DACs, even with heavy loading while simultaneously acting as output supplies for powering microcontrollers and other supporting devices. Both outputs have the same precision specifications and A track each other over temperature. Each output can be configured with external resistors to give an output voltage up to 6V.

The LTC7813 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that can be above, below, or equal to the output voltage. The LTC7813 operates from a wide 4.5V to 60V input supply range. When biased from the output of the boost regulator, the LTC7813 can operate from an input supply as low as 2.2V after start-up. The 34?A no-load quiescent current (both channels on) extends operating runtime in battery-powered systems.Unlike conventional buck-boost regulators, the LTC7813?s cascaded Boost+Buck solution has continuous, nonpulsating, input and output currents, substantially reducing voltage ripple and EMI. The LTC7813 has independent feedback and compensation points for the boost and buck regulation loops, enabling a fast output transient response that can be externally optimized.Applications Automotive and Industrial Power Systems High Power Battery Operated Systems

The LTC3374A is a multioutput power supply IC consisting of eight synchronous 1A buck converters, all powered from independent 2.25V to 5.5V input supplies. An upgraded pin-compatible version of the LTC3374, the LTC3374A, has higher efficiency, improved output voltage accuracy and an added overvoltage (OV) indicator.The DC/DCs may be used independently or in parallel to achieve higher output currents of up to 4A with a shared inductor. The common buck switching frequency may be programmed with an external resistor, synchronized to an external oscillator, or set to a default internal 2MHz clock. The operating mode for all DC/DCs may be programmed via the MODE pin.To reduce input noise the buck converters are phased in 90? steps. Precision enable pin thresholds simplify powerup sequencing. The LTC3374A is available in a 38-lead 5mm ? 7mm QFN package as well as a 38-lead exposed pad TSSOP package. NOTES LTC3374 LTC3374A Higher efficiency, improved output voltage accuracy and an added overvoltage (OV) indicator APPLICATIONS General Purpose Multichannel Power Supplies Industrial/Automotive/Communications

The LT8335 is a current mode DC/DC converter capable of generating either positive or negative output voltages using a single feedback pin. It can be configured as a boost, SEPIC or inverting converter consuming as low as 6?A of quiescent current. Low ripple Burst Mode operation maintains high efficiency down to very low output currents while keeping the output ripple below 15mV in a typical application. The internally compensated current mode architecture results in stable operation over a wide range of input and output voltages. Integrated soft-start and frequency foldback functions are included to control inductor current during start-up. The 2MHz operation combined with the small 8-lead DFN package, enables low cost, area efficient solutions.Applications Industrial and Automotive Telecom Medical Diagnostic Equipment Portable Electronics

The LTC2936 is an EEPROM configurable voltage supervisor which can simultaneously monitor up to six power supply voltage inputs. Each voltage detector offers I2C programmable overvoltage/undervoltage thresholds in various ranges and increments and a dedicated comparator output.Two general purpose inputs (GPI) can be configured as programmable manual reset (MR), UV disable (UVDIS), margin (MARG), Write Protect (WP) or auxiliary comparator (AUXC) inputs. Three general purpose pins (GPIO) can be configured for input or output operation. When configured as an input, a GPIO pin can be mapped to any other GPIO configured as output. The GPIO pins can also be configured as ALERT or fault outputs. Faults can be configured with programmable delay-on-release times. Output type and polarity are also configurable.Status and history registers log faults and can be polled via the I2C interface. A fault snapshot is also backed up in internal EEPROM. All parameters are programmable via the I2C interface. Configuration EEPROM supports autonomous operation without additional software.Applications High Availability Computer Systems Network Servers Telecom Equipment Data Storage

The LTM4650-1A/LTM4650-1B is dual 25A or single 50A output step-down ?Module? (power module) regulator with ?0.8% (LTM4650-1A) and ?1.5% (LTM4650-1B) total DC output error with ?3% transient output error. Included in the package are the switching controller, power FETs, inductors, and all supporting components. External compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors. With synchronized multiphase parallel current sharing, six LTM4650-1 devices can deliver up to 300A. The LTM4650-1 is offered in a 16mm ? 16mm ? 5.01 BGA package, with SnPb (BGA) or RoHS compliant terminal finish. VIN Range VOUT Range Comp DC VOUT Accy LTM4650 4.5V to 15V 0.6V to 1.8V Internal 1.5% LTM4650-1B 4.5V to 15V 0.6V to 1.8V External 1.5% LTM4650-1A 4.5V to 15V 0.6V to 1.8V External 0.8% LTM4650A 4.5V to 16V 0.6V to 5.5V Internal 1% LTM4650A-1 4.5V to 16V 0.6V to 5.5V External 1% Applications FPGA, ASIC, ?Processor Core Voltage Regulation Information, Communication Systems

The LTC3351 is a backup power controller that charges and monitors a series stack of one to four supercapacitors. The LTC3351?s synchronous step-down controller drives N-channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter runs in reverse as a step-up converter to deliver power from the supercapacitor stack to the backup supply rail. Internal balancers eliminate the need for external balance resistors and each capacitor has a shunt regulator for overvoltage protection.The LTC3351 monitors system voltages, currents, stack capacitance and ESR which can all be read over the I2C/SMBus port. The hot swap controller uses N-channel MOSFETs for inrush control and a low loss path from the input to the output. The ideal diode controller uses an N-channel MOSFET for a low loss power path from the supercapacitors to the output. The LTC3351 is available in a thermally enhanced low profile 44-lead 4mm ? 7mm ? 0.75mm QFN surface mount package.APPLICATIONS Swappable PCIE Cards with NVM High Current 12V Ride-Through UPS Servers/Mass Storage/High Availability Systems

The LT8303 is a micropower high voltage isolated flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with a single external resistor. Internal compensation and soft-start further reduce external component count. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. A 450mA, 150V DMOS power switch is integrated along with all high voltage circuitry and control logic into a 5-lead thinSOT? package.The LT8303 operates from an input voltages range of 5.5V to 100V and can deliver up to 5W of isolated output power. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low component count, and high efficiency application solution for isolated power delivery.Applications Isolated Telecom, Datacom, Automotive, Industrial,?and Medical Power Supplies Isolated Auxiliary/Housekeeping Power Supplies

The LTC2358-18 is an 18-bit, low noise 8-channel simultaneous sampling successive approximation register (SAR) ADC with buffered differential, wide common mode range picoamp inputs. Operating from a 5V low voltage supply, flexible high voltage supplies, and using the internal reference and buffer, each channel of this SoftSpan? ADC can be independently configured on a conversion-by-conversion basis to accept ?10.24V, 0V to 10.24V, ?5.12V, or 0V to 5.12V signals. Individual channels may also be disabled to increase throughput on the remaining channels.The integrated picoamp-input analog buffers, wide input common mode range and 128dB CMRR of the LTC2358-18 allow the ADC to directly digitize a variety of signals using minimal board space and power. This input signal flexibility, combined with ?3.5LSB INL, no missing codes at 18 bits, and 96.4dB SNR, makes the LTC2358-18 an ideal choice for many high voltage applications requiring wide dynamic range.The LTC2358-18 supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces. Between one and eight lanes of data output may be employed in CMOS mode, allowing the user to optimize bus width and throughput.Applications Programmable Logic Controllers Industrial Process Control Power Line Monitoring Test and Measurement