Home Products Power 2.5MHz Boost/Inverter DC/DC Converter with 2A/42V Switch & Synchronization

2.5MHz Boost/Inverter DC/DC Converter with 2A/42V Switch & Synchronization

Linear Technology has announced the LT3580, a current mode, fixed frequency step-up DC/DC converter with an internal 2A, 42V switch. It operates from an input voltage range of 2.5V to 32V, making it suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs. The LT3580 can be configured as either a boost, SEPIC or an inverting converter. Its switching frequency can be programmed, via a single resistor or synchronized to an external clock, between 200kHz and 2.5MHz, enabling designers to minimize external component sizes and to avoid noise critical frequency bands. The combination of a 3mm x 3mm DFN package (or MSOP-8E) and tiny externals ensures a very compact footprint while minimizing solution cost.

Power

24 January 2008

byNews Desk

The LT3580’s low VCESAT switch, 0.3V at 1.5A, delivers efficiencies of up to 89%. Under-voltage lockout (UVLO) is user adjustable for optimal system performance. A single feedback resistor sets the output voltage, minimizing external components. Other features include external synchronization capability, internal soft-start and thermal shutdown protection.

The LT3580EDD is available in a 3mm x 3mm DFN-8 package. The LT3580MS8E is also available in a thermally enhanced MSOP-8 package. Industrial temperature (-40°C to 125°C) versions, the LT3580IDD and the LT3580IMS8E, are also available from stock.