Synchronous Buck Reduces EMI
Mar 21, 2007 10:18 AM
News & Features From Auto Electronics
Committed to improving hybrid electric cars
New Motors for Hybrid Vehicles
Battery Firms Battle for Hybrid Hegemony
Innovative Bipolar Plates for Fuel Cells
See More Headlines
Top Articles
Exploring Current Transformer Applications
Ultracapacitor Technology Powers Electronic Circuits
Buck-Converter Design Demystified
Sensorless Motor Control Simplifies Washer Drives
PET Resources
Buyer's Guide
Conferences
Engineering Jobs
Power Electronics Events
Rent Our Lists
Spotlight on Digital Power
Intersil’s ISL8502 is a 2.5-A, wide input voltage synchronous buck regulator. It reduces noise and EMI filter requirements through programmable switching frequency and external synchronization. The device features an integrated switching MOSFETs and a thermally enhanced compact 4-mm x 4-mm QFN package.
The device features external synchronization capability with master/ slave configuration to enable the user to synchronize up to four ICs out of phase and significantly reduce EMI in the design while also providing multiple outputs from the same input rail. The device’s adjustable switching frequency range of 500 kHz to 1.2 MHz ensures high efficiency and a smaller number of external components.
Target applications for the ISL8502 include point-of-load supplies. The device is available now in a 24-lead QFN package and is priced at $2.21 each in 1000-unit quantities.
