Product category: Power Supply ICs and Controllers
News Release from: Linear Technology Corp | Subject: LTC6908
Edited by the Electronicstalk Editorial Team on 21 August 2006
Spread-spectrum chip cuts PSU EMI
A tiny spread spectrum silicon oscillator is optimised for switching regulators.
Linear Technology has announced the LTC6908, a tiny spread spectrum silicon oscillator optimised for switching regulators Using a single resistor, the LTC6908 is programmable to any frequency from 50kHz to 10MHz
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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The LTC6908 comes in two configurations, each with dual outputs.
The LT6908-1's outputs are 180 degrees out of phase and the LTC6908-2's outputs are 90 degrees out of phase.
Enabling the pseudorandom spread-spectrum provides a simple, effective way to reduce EMI.
In the event that the switcher bandwidth is limited, the LTC6908 modulation rate can be adjusted to one of three settings.
"Implementing spread-spectrum for switchers is now trivial", says Doug LaPorte, Design Section Lead for Linear Technology.
"The user sets the frequency with one resistor and selects a modulation rate".
Fully specified over the temperature range of -40 to +125C, the LTC6908 offers the same outstanding features available with Linear Technology's silicon oscillator family; rugged and reliable operation under extreme conditions, fast startup and low power consumption.
These parts are available in a compact 6-lead ThinSOT package and a 2 x 3mm DFN.
The LTC6908 is in full production with prices starting at $1.65 each in 1000-piece quantities. Request a free brochure from Linear Technology Corp ...
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