Demonstration circuit 856A is a 500mA, 1.25MHz Synchronous Boost Converter featuring the LTC3427EDC. The demo circuit demonstrates a DC/DC boost converter, with a 500mA switch current limit, providing 3.3V at 180mA from a 1.8V to 3.6V input voltage.

Demonstration circuit 857 features the LT3481EMSE and LT3481EDD in two step-down converter circuits, one configured for high efficiency and the other for small size. The high efficiency circuit switching at 800kHz is designed for 3.3V/2A output from a 4.5V to 34V input. The small size circuit switching at 2MHz demonstrates the LT3481’s ability to operate with a small inductor and output capacitor. It is designed for 5V output from an 8.5V to 22V input. The wide input range of the LT3481 allows a variety of input sources. The typical sources are automotive batteries, wall adaptors and industrial supplies. The current mode control scheme creates fast transient response and good loop stability. In addition, the LT3481’s integrated boost diode reduces the parts count. The low ripple Burst Mode® Operation of LT3481 not only allows the circuit to have high efficiency over a broad current range but also provides the low output ripple at light load conditions.

DC871A-B: Demo Board for the LTC3215 700mA Low Noise High Current LED Charge Pump.

The LTC3215 is a low noise, high current charge pump DC/DC converter designed to power high current LEDs. The part includes an accurate programmable current source capable of driving loads up to 700mA from a 2.9V to 4.4V input. Low external parts count (two flying capacitors, one programming resistor and two bypass capacitors) makes the LTC3215 ideally suited for small, battery powered applications.Built-in soft-start circuitry prevents excessive inrush current during start-up. High switching frequency enables the use of small external capacitors. LED current is programmed with an external resistor. The LED is disconnected from VIN during shutdown.An ultralow dropout current source maintains accurate LED current at very low ILED voltages. Automatic mode switching optimizes efficiency by monitoring the voltage across the LED current source and switching modes only when ILED dropout is detected. The LTC3215 is available in a low profile 3mm ? 3mm 10-Lead DFN package.Applications LED Torch/Camera Light Supply for Cell Phones, PDAs and Digital Cameras General Lighting and/or Flash/Strobe Applications

The LTC3454 is a synchronous buck-boost DC/DC converter optimized for driving a single high power LED at currents up to 1A from a single cell Li-Ion battery input. The regulator operates in either synchronous buck, synchronous boost, or buck-boost mode depending on input voltage and LED forward voltage. PLED/PIN efficiency greater than 90% can be achieved over the entire usable range of a Li-Ion battery (2.7V to 4.2V).LED current is programmable to one of four levels, including shutdown, with dual external resistors and dual enable inputs. In shutdown no supply current is drawn. A high constant operating frequency of 1MHz allows the use of small external components.The LTC3454 is offered in a low profile (0.75mm) thermally enhanced 10-lead (3mm ? 3mm) DFN package.Applications Cell Phone Camera Flash Cell Phone Torch Lighting Digital Cameras PDAs Misc Li-Ion LED Drivers

Demonstration circuit 876 is a dual step-up white LED driver with wide dimming range featuring the LT3486. The board is optimized to drive a string of six, eight, or ten white LEDs at 100mA from each of its two outputs with a PVIN input voltage range of 3V to 25V. The maximum LED output voltage must be less than 36V as the overvoltage protection at the output will limit the maximum output voltage to 36V in the case of an open circuit load. The high input voltage range, high-efficiency low-side internal 1.3A NPN power switches, ground-referenced low-voltage current sense resistors, PWM pins for 1000:1 dimming ratio, control pins for brightness adjust, overvoltage protection, shutdown control pin, externally programmable switching frequency, low shutdown current and internal soft-start capacitor make the LT3486 an extremely powerful and versatile LED driving IC for portable applications and displays.

SmartMesh IP wireless sensor networks are self managing, low power internet protocol (IP) networks built from wireless nodes called motes. The LTC5800-IPM is the SmartMesh IP integrated circuit in the Eterna? family of IEEE 802.15.4e System-on-Chip (SoC) solutions, featuring a highly integrated, low power radio design as well as an ARM Cortex-M3 32-bit microprocessor running SmartMesh IP embedded networking software.With SmartMesh IP time-synchronized networks, all motes in the network may route, source or terminate data, while providing many years of battery powered operation. SmartMesh IP is a highly flexible network with proven reliability and low power performance in an easy-to-integrate platform.The LTC5800-IPM?s behavior in a SmartMesh IP network is determined by the choice of SmartMesh IP network software loaded: Wireless Mote, EManager, or Access Point Mote in a SmartMesh IP network. The SmartMesh IP software provided with the LTC5800-IPM is fully tested and validated, and is readily configured via a software Application Programming Interface. Once you have purchased SmartMesh IP products, the SmartMesh IP stack binaries may be downloaded via your myAnalog account.The pin signaling behavior of the LTC5800*WR-IPMA hardware is determined by the software loaded and is described in detail in the following product datasheets: LTC5800-IPM = LTC5800*WR-IPMA hardware + SmartMesh IP ?Mote? Software ? LTC5800-IPM Datasheet LTC5800-IPR = LTC5800*WR-IPMA hardware + SmartMesh IP EManager Software ? LTC5800-IPR Datasheet LTC5800-IPA = LTC5800*WR-IPMA hardware + SmartMesh IP Access Point Software ? LTC5800-IPA Datasheet Network Features Feature Benefit >99.999% Network Reliability Avoids communications dropouts common with other wireless networks NIST-certified AES-128 bit Encryption Data protected by end-to-end encryption, message integrity checking and device authentication Scalable Uses time-slotted channel-hopping protocol to avoid in-network collisions to maximize scale while minimizing power and latency-hungry transmission retries due to congestion Bidirectional Communications Ideal for both monitoring and control applications Up to 10 messages/second/node Time-slotted communications avoids contention. This data rate includes built-in margin for packet retries. Device Features Feature Benefit Industry-Leading Low Power Radio Technology ? 4.5mA to Receive a Packet ? 5.4mA to Transmit at 0dBm ? 9.7mA to Transmit at 8dBm Pre-engineered RF RF elements include an on-chip power amplifier and are pre-tuned for optimized performance, including temperature compensation, saving development time. Energy Harvesting Support Very low power design enables motes to be powered by a wide variety of energy harvesters. Click here to see a demonstration circuit of a SmartMesh IP mote powered by indoor light. Integrated Temperature Sensor Precise temperature sensor is integrated directly into the mote. ApplicationsSmartMesh IP is ideally suited for wireless Industrial Internet of Things (IoT) applications. Learn more about SmartMesh applications.?

SmartMesh WirelessHART wireless sensor networks are self managing, low power networks built from wireless nodes called motes. The LTC5800-WHM is the WirelessHART Mote-on-Chip??integrated circuit?in the Eterna? family of IEEE 802.15.4 System-on-Chip (SoC) solutions, featuring a highly integrated, low power radio design by Analog Devices as well as an ARM Cortex-M3 32-bit microprocessor running our embedded SmartMesh WirelessHART networking software.With Analog Devices' time-synchronized WirelessHART networks all motes in the network may route, source or terminate data while providing many years of battery powered operation. The SmartMesh WirelessHART software provided with the LTC5800-WHM is fully tested and validated, and is readily configured via a software Application Programming Interface.SmartMesh WirelessHART motes deliver a highly flexible network with proven reliability and low power performance in an easy-to-integrate platform. Network Features Feature Benefit Time Synchronized, Channel Hopping Communications >99.999% network reliability in even the most challenging RF environments Sub 50 ?A Routers Can build out a network without any line powered devices. Flexibility to be line powered or energy harvested if desired. Secure Mesh with 128-bit AES Encryption NIST Certified Security. Compromise of one node does not compromise network. Standards-based Compliant to international standard IEC 62591 (WirelessHART) Highly Accurate Time Stamping Time stamping on every node is available to applications with millisecond accuracy Device Features Feature Benefit Industry-Leading Low Power Radio Technology 4.5mA to Receive a Packet 5.4mA to Transmit at 0dBm 9.7mA to Transmit at 8dBm Pre-engineered RF RF elements include an on-chip power amplifier and are pre-tuned for optimized performance, including temperature compensation, saving development time. Energy Harvesting Support Very low power design enables motes to be powered by a wide variety of energy harvesters ApplicationsLearn more about SmartMesh applications.

Note: Newer Part Nunber Available - Please see the DC2274A-A A SmartMesh IP Network Manager anchors the SmartMesh IP product line. It provides core networking functionality, enabling the network to achieve unsurpassed levels of resilience, reliability and scalability, with advanced network management and comprehensive security features. DC9020B Evaluation/Development Network Manager incorporates the LTP™5902-IPR SmartMesh IP embedded manager (with an MMCX antenna connector) and provides a USB connection for both power and software access to the manager API UART port. Optionally, the DC9006 Eterna interface card (shown on the right hand side in the picture above) can be removed to allow 3V level access to the LTP5902-IPR signals from embedded processors

The LTC3217 is a low noise charge pump DC/DC converter designed to power four high current LEDs. The LTC3217 requires only four small ceramic capacitors and two current set resistors to form a complete LED power supply and current controller.Built-in soft-start circuitry prevents excessive inrush current during start-up and mode changes. High switching frequency enables the use of small external capacitors. Independent high and low current settings are programmed by two external resistors. Shutdown mode and current output levels are selected via two logic inputs.The current through the LEDs is programmed via ISET1 and ISET2. In addition, the brightness can be controlled by pulse width modulation of the EN2 pin.The charge pump optimizes efficiency based on the voltage across the LED current sources. The part powers up in 1x mode and will automatically switch to boost mode whenever any enabled LED current source begins to enter dropout. The first dropout switches the part into 1.5x mode and a subsequent dropout switches the part into 2x mode. The LTC3217 resets to 1x mode whenever the part is shut down.The LTC3217 is available in a low profile 16-lead (3mm ? 3mm ? 0.75mm) QFN package.Applications Multi-LED Camera Light Supply for Cellphones/ DSCs/PDAs