The LT8640S/LT8643S synchronous step-down regulator?features second generation Silent Switcher architecture designed to minimize EMI emissions while delivering high?efficiency at high switching frequencies. This includes the integration of bypass capacitors to optimize all the?fast current loops inside and make it easy to achieve?advertised EMI performance by reducing layout sensitivity.?This performance makes the LT8640S/LT8643S ideal for?noise-sensitive applications and environments.Peak current mode control with a 30ns minimum on-time?allows high step-down ratios even at high switching frequencies. The LT8643S has external compensation to?enable current sharing and fast transient response at high?switching frequencies.Burst Mode operation enables ultralow standby current?consumption, forced continuous mode can control frequency?harmonics across the entire output load range, or spread?spectrum operation can further reduce EMI emissions.APPLICATIONS Automotive and Industrial Supplies General Purpose Step-Down

Demonstration circuit 2672A-B is a complete non-isolated 48V input, dual-phase single output, high efficiency, high density µModule regulator with 30V to 58V input range. The output can supply 50A maximum load current. The demo board has a LTM4664 µModule regulator, which is a dual 25A or single 50A step-down regulator with digital power system management. Please see LTM4664 datasheet for more detailed information. DC2672A-B powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay™ onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on the fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

Demonstration circuit 2677A is a reference design for robust industrial data acquisition applications for the LTC®2358-18. The LTC2358-18 is capable of high voltage measurements with a large input common range; however, the DC2677A implements input protection that allows up to 400V of continuous input protection. Combined with gas discharge tubes, which provide protection from surges, the DC2677A is capable of surviving extreme abuse. This reference design includes the LTC2358-18 SAR ADC, ADA4522-2 dual zero-drift operational amplifier, and an LT6658 dual-output, high current reference for sensor excitation. The digital interface is an HSMC (high-speed mezzanine connector), which is compatible with Altera Cyclone V SoCkit and other Altera FPGA evaluation boards that support 3.3V CMOS I/O.

Demonstration circuit 2692A-A features the LTC2662, 5-channel, 16-bit, 300mA, current source DACs with 10ppm/°C reference in a 5mm × 5mm QFN package. This device features per-channel SoftSpan™ configuration of 3.125mA to 300mA, a separate supply for each output, and an internal switch to allow any output pin to be connected to V−. Pin-compatible 12-bit versions are available for lower resolution requirements on the DC2692A-B.

Demonstration circuit 2721A-A features the LTM4623 µModule® regulator, a tiny high performance high efficiency step-down regulator configured as an inverting buck-boost regulator. The DC2721A-A has an operating input voltage range of 4V to 15V and is able to provide an output current of up to 2A. The output voltage can be programmed between –0.6V and –5.5V. The LTM4623 is a complete DC/DC point of load regulator in a thermally enhanced 6.25mm × 6.25mm × 1.82mm LGA package requiring only a few input and output capacitors. The LTM4623 data sheet must be read in conjunction with this demo manual for working on or modifying demo circuit 2721A-A

Demonstration circuit 2728A is a high voltage, dual output boost converter with 12V to 24V input range. The output voltage is adjustable from VIN to 48V. Each output can supply 5A maximum load current. The demo board has a LTC7880 controller, which is a 60V dual output step-up controller with digital power system management. Please see LTC7880 data sheet for more detailed information. DC2728A powers up to default settings and produces power based on configuration resistors or its nonvolatile memory (NVM) without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

The LTC2949 is a high precision current, voltage, temperature,?charge and energy meter for electrical and hybrid?vehicles and other isolated current sense applications. It?infers charge and energy flowing in and out of the battery?pack by monitoring simultaneously the voltage drop over?up to two sense resistors and the battery pack voltage.Low offset ?? ADCs ensure accurate measurement of?voltage and current with insignificant power loss. Continuous?integration of current and power ensures lossless?tracking of charge and energy delivered or received by?the battery pack.The built-in serial interface can be configured to support?isolated isoSPI communication to the host or as SPI?interface.The LTC2949 features 12 internally buffered high impedance?inputs (V1 to V12) for measuring voltages from?external sensors or resistor dividers allowing to measure?temperatures, HV-Link voltages, chassis isolation and?supervise contactor states. LTC2949 has up to five programmable?digital outputs which can be set to ground,?supply or toggling at 400kHz.Programmable threshold and tracking registers reduce?digital traffic to the host.Applications Electric and Hybrid Vehicles Isolated Current Sensing Backup Battery Systems High Power Portable Equipment

The DC2733 is a demonstration system for the LTC4249, 65V Dual Electronic Circuit Breaker with Current Monitors. The LTC4249 provides dual independent 1.2A, 75mΩ circuit breakers that can function independently or work together in parallel. Each circuit breaker channel has its own enable, ready, and IMON pins. The DC2733 demo board gives access to both channels of the LTC4249, including the independent RDY and IMON outputs and the EN inputs. Resistors at the IMON pins set the circuit breaker thresholds as well as the IMON current-to-voltage gains. The IC draws power from the IN1 input.

The LTC7815 is a high performance triple output (buck/buck/boost) synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages. Constant frequency current mode architecture allows a phase-lockable switching frequency of up to 2.25MHz. The LTC7815 operates from a wide 4.5V to 38V input supply range. When biased from the output of the boost converter or another auxiliary supply, the LTC7815 can operate from an input supply as low as 2.5V after start-up.The 28?A no-load quiescent current extends operating runtime in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC7815 features a precision 0.8V reference for the bucks, 1.2V reference for the boost and a power good output indicator. The PLLIN/MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous inductor current mode at light loads.Applications Automotive Always-On and Start-Stop Systems Battery Operated Digital Devices Distributed DC Power Systems Multioutput Buck-Boost Applications

The LTC2404/LTC2408 are 4-/8-channel 2.7V to 5.5V micropower 24-bit A/D converters with an integrated oscillator, 4ppm INL and 0.3ppm RMS noise. They use delta-sigma technology and provide single cycle digital filter settling time (no latency delay) for multiplexed applications. The first conversion after the channel is changed is always valid. Through a single pin the LTC2404/LTC2408 can be configured for better than 110dB rejection at 50Hz or 60Hz ?2%, or can be driven by an external oscillator for a user defined rejection frequency in the range 1Hz to 120Hz. The internal oscillator requires no external frequency setting components. The converters accept any external reference voltage from 0.1V to VCC. With their extended input conversion range of ?12.5% VREF to 112.5% VREF the LTC2404/LTC2408 smoothly resolve the offset and overrange problems of preceding sensors or signal conditioning circuits. The LTC2404/LTC2408 communicate through a flexible 4-wire digital interface which is compatible with SPI and MICROWIRE? protocols.Applications Weight Scales Direct Temperature Measurement Gas Analyzers Strain-Gage Transducers Instrumentation Data Acquisition Industrial Process Control 6-Digit DVMs