Linear Technology Corp. (LTC, Milpitas, CA) announced its new LT3483, a 40 V, 200 mA, inverting dc-dc converter with an on-chip schottky diode in a ThinSOT™ package. The LT3483 utilizes a current-limited, fixed off-time architecture, which delivers high efficiency over a broad range of load current, while BurstMode® operation allows quiescent current of only 40 µA.
The LT3483's input-voltage range of 2.5 V to 16 V makes it suitable for single-cell lithium-ion or multi-cell nickel-metal hydride/nickel-cadmium and alkaline applications, as well as more general-purpose, fixed-rail systems. Its output-voltage capability makes it suitable for a wide array of negative biasing applications, including CCD, LCD and general-purpose negative-voltage supplies.
The LT3483 can deliver up to 70 mA at -5 V from a 5 V input. Additional features include an integrated feedback resistor output and short-circuit protection. The LT3483's small package, high level of integration, and use of surface-mount components yield a solution footprint of less than 40 mm².
The LT3483 is now available in a ThinSOT package from stock. Pricing starts at $2.05 each for 1,000-piece quantities.
