Demonstration circuit 1311 is a Telecom isolated DC/DC converter featuring the LTC3805/-5 constant frequency current mode flyback controller. The DC1311 converts 18V to 72V input voltage to an isolated 3A of output current at 3.3V. The 300kHz constant frequency operation is maintained down to very light load to reduce low frequency noise generated over a wide range of load current. The converter provides high output voltage accuracy (typically ±2%) over wide load range with no minimum load requirement. The DC1311 also provides non-isolated design by removing opto coupler and LTC4430 circuit. The demonstration circuit can be easily modified to generate different output voltages up to 15V. As output voltage is increased, the maximum output current must be reduced to limit the output power to no more than 10W.

Demonstration circuit 1590B is a dual output synchronous buck converter featuring the LTC3880EUJ, a dual output peak current mode controller with digital power system management. There are two versions of the board available: DC1590B-A senses the output current across a sense resistor and has a default switching frequency of 350kHz, and DC1590B-B senses output current with the inductor DCR and has a default switching frequency of 425kHz. Either version can be populated with the LTC3880EUJ-1 (which allows the user to provide bias power to the IC from an external power supply) instead of the LTC3880EUJ. These boards provide two programmable outputs of 20A each. The factory default settings are 1.8V for each output.

DC1836A-B: Demo Board for the LTC2955 Pushbutton On/Off Controller with Automatic Turn-On.

Demonstration circuit 2024A features the LTC4282 high current Hot Swap™ controller. The LTC4282 is well suited to high power applications because the precise monitoring capability and accurate current limiting reduces the extremes in which both loads and power supplies must safely operate. Non-volatile configuration allows for flexibility in the autonomous generation of alerts and response to faults.

DC1049A: Demo Board for the LTC4264 High Power PD Interface Controller with 750mA Current Limit.

DC1054A/B: Demo Board for the LTC4242 Dual Slot Hot Swap Controller for PCI Express.

DC1090A: Demo Board for LTC2954 Push Button On/Off Controller with µP Interrupt

Demonstration circuit 1106 is a 1.5A Buck Converter, 1.5A Boost Converter, and LDO Controller featuring the LT3570. The Buck is designed to convert a 4V to 36V source to 3.3V at 1A. The LDO is powered from the output of the buck and converts 3.3V to 2.5V at 100mA. The boost converts a 3.3V to 10V source to 12V at 275mA.

DC1204A: Demo Board for LTC4358 5A Ideal Diode.

DC1234B: Demo Board for the LT3782 2-Phase Step-Up DC/DC Controller.