higher-efficiency SMD DC-DC converters boost isolation and temperature performance

XP Power has announced six new series of high-performance isolated DC-DC converters in industry standard surface-mount packages. Offered in single- and dual-output versions the compact ‘next generation’ devices are available in power ranges from 0.25W to 3W. They have a higher efficiency, increased isolation and an extended operating temperature range compared to traditional types. Both regulated and unregulated output models are available. The ISA, ISE, ISH and ISK series offer unregulated outputs while the ISR and ISW have regulated outputs. Exhibiting versatility, the ISE and ISA ranges provide 1W of output power with single and dual unregulated outputs respectively, the ISH is a 2W version of the ISE range, and the ISK offers an unregulated 0.25W single output. In addition the ISW is a 1W single output converter with a regulated output, with the ISR range providing a regulated 3W single output. Accordingly there are various combinations of single output models from 3.3 to 24VDC, and dual output models with outputs of +/-5, +/-9, +/-12, +/-15 and +/-24VDC. Each series offers up to five +/-10% input voltage ranges or a 2:1 input range on the ISR series. Offering standard 1,500 or optional 3,000VDC input / output isolation figures, the converters measure just 12.7mm x 8.3mm x 7.25mm for the ISE, ISH and ISK ranges. The ISA and ISW measure 15.24mm x 8.3mm x 7.25mm and the ISR measures 23.86mm x 13.7mm x 8mm. All have industry standard pin outs. The converters’ small size takes up less PCB space allowing designers more room to add extra features, or alternatively to reduce the size of their end product. The DC-DC converters feature an extended operating temperature range of -40C to +105C for the ISA, ISE, ISH, ISK and ISR ranges (+85C for ISW), and full output power up to +100C is achievable (+85C for ISR and +70C for ISW). The devices are suitable for use in application areas including automation and process control, broadcast, instrumentation, mobile communications, and various other compact electronic equipment, says the company.