Product category:
Power Supply ICs and Controllers
News Release from: Intersil | Subject: ISL8502
Edited by the Electronicstalk Editorial
Team on 04 July 2007
Regulators synchronise to cut system EMI
Synchronous buck regulator cuts noise through programmable switching frequency and external synchronisation.
A 2.5A wide-input-voltage synchronous buck regulator greatly reduces noise and EMI filter requirements through programmable switching frequency and external synchronisation The integrated switching MOSFETs and a thermally enhanced compact 4 x 4mm QFN package make the ISL8502 an ideal fit for 5 and 12V-input space-critical applications
This article was originally published on Electronicstalk on 8 Jan 2001 at 8.00am (UK)
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Unlike competing devices, the ISL8502 features external synchronisation capability with master/slave configuration to enable the user to synchronise up to four ICs out of phase and significantly reduce EMI in the design as well as providing multiple outputs from the same input rail.
The device's adjustable switching frequency range of 500kHz to 1.2MHz ensures high efficiency and a smaller number of external BOM components.
The external compensation provides additional flexibility and enables various choices of passive devices.
Target applications for the ISL8502 include point-of-load applications, set-top boxes, ADSL modems, switches, routers, graphics cards, FPGA power, ASICs and memory power supplies.
The ISL8502 is available now in a 24-lead QFN package.
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