DC1079A-B: Demo Board for the LTC4310 Hot-Swappable I2C Isolators.

DC1082A-A: Demo Board for the LTC1407A-1 Serial 14-Bit, 3Msps Simultaneous Sampling ADCs with Shutdown

DC1082A-F: Demo Board for the LTC2355-14 Serial 14-Bit, 3.5Msps Sampling ADCs with Unipolar Input.

Demonstration circuit DC1083A-A features the LTM4603, the high efficiency, high density step-down μModule® regulator. The input voltage range is from 4.5V to 20V. The output voltage is jumper programmable from 0.6V to 5V. The rated load current is 6A, but derating is necessary for certain VIN, VOUT, and thermal conditions. The LTM4603 can be synchronized to an external clock signal by applying the clock to the PLLIN pin.

Demonstration circuit DC1083A-B features the LTM4603HV, the high efficiency, high density step-down μModule® regulator. The input voltage range is from 4.5V to 28V. The output voltage is jumper programmable from 0.6V to 5V. The rated load current is 6A, while derating is necessary for certain VIN, VOUT, and thermal conditions. Applying an external clock signal to the PLLIN pin forces the μModule regulator to operate at the same frequency.

DC1098A-D: Demo Board for LTC2281 Dual 10-Bit, 125Msps Low Power 3V ADC

The LTC2953 is a push button On/Off controller that manages system power via a push button interface. An enable output toggles system power while an interrupt output provides debounced push button status. The interrupt output can be used in menu driven applications to request a system power down. The LTC2953 also features input and output power supply monitors. An uncommitted power fail comparator provides real time input monitor information, while a de-glitched under voltage lockout comparator gracefully initiates a system power down. The under voltage lockout comparator prevents the system from powering from a low power supply. The adjustable supply monitor input is compared against an accurate internal 0.5V reference. The reset output remains low until the supply monitor input has been in compliance for 200ms. The LTC2953 operates over a wide 2.7V to 27V input voltage range and draws only 14?A of current. Two versions of the part accommodate either positive or negative enable polarities. Applications Push Button Power Path Control Battery Power Supervisor Portable Instrumentation, PDA Blade Servers Desktop and Notebook Computers

The LTC4009 is a constant-current/constant-voltage battery charger controller. It uses a synchronous quasiconstant frequency PWM control architecture that will not generate audible noise with ceramic bulk capacitors. Charge current is set by the combination of external sense, input and programming resistors. With no built-in termination, the LTC4009 family charges a wide range of batteries under external control. The LTC4009 features a fully adjustable output voltage, while the LTC4009-1 and LTC4009-2 can be pin-programmed for lithium-ion/polymer battery packs of 1-, 2-, 3- or 4-series cells. The LTC4009-1 provides output voltage of 4.1V/cell, and the LTC4009-2 is a 4.2V/cell version. The device includes AC adapter input current limiting which maximizes the charge rate for a fixed input power level. An external sense resistor programs the input current limit, and the ICL status pin indicates when the battery charge current is being reduced as a result of AC adapter current limiting. The CHRG status pin is active during all charging modes, including special indication for low charge current.Applications Notebook Computers Portable Instruments Battery Backup Systems

DC1114A: Demo Board for the LT6100 Precision, Gain Selectable High Side Current Sense Amplifier

The LT3954 is a DC/DC converter designed to operate as a constant-current source and constant-voltage regulator. It features an internal low side N-channel MOSFET rated for 40V/5A. The LT3954 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. A voltage feedback pin serves as the input for several LED protection features, and also makes it possible for the converter to operate as a constant-voltage source. A frequency adjust pin allows the user to program the frequency from 100kHz to 1MHz to optimize efficiency, performance or external component size.The LT3954 senses output current at the high side or at the low side of the load. The internal PWM generator can be configured to self-oscillate at fixed frequency with duty ratio programmable from 4% to 96%. When driven by an external signal, the PWM input provides LED dimming ratios of up to 3000:1. The CTRL input provides additional analog dimming capability.Applications High Power LEDs Output Short-Circuit Protected Boost Battery and SuperCap Chargers Accurate Current Limited Voltage Regulators