DC383 is a multipurpose DC/DC demonstration board featuring the LT1930 and LT1931, the industry’s highest power SOT-23 regulators. The demo board offers three separate DC/DC converters for different application needs. The Boost Circuit is designed to convert 5V input to 12V output at 300mA maximum load. The SEPIC Circuit generates constant 12V/300mA output with 10V~16V variable input. The Inverter Circuit is designed for applications requiring negative 12V/350mA from a positive 12V input. All three circuits are designed to demonstrate the advantages of the 1.2MHz switching frequency, the internal 36V/1A switch, wide input voltage range and small circuit size. These circuits are intended for space-conscious applications such as digital cameras, cellular phones, palmtop computers and LCD displays. The 1.2MHz switching frequency, 1A integrated switch, small circuit size, and low component count makes the LT1930 and LT1931 suitable for use in many other applications, such as PC cards, miniature disk drives, xDSL power supplies, flash memory products and local 5V or 12V supplies.