Linear,Announces,The,LTC3634,S technology Linear Announces The LTC3634 Synchronous Buck Regulator Used
Active shredder safety technology for the small office. Shreds 15sheets per pass into 5/32" x 1-1/2" cross-cut particles (Security Level3). Patented SafeSense® Technology stops shredding when hands touch thepaper opening. Designated shredde The electronic cigarette is not new. People who buy electronic cigarette knows that this product has been in the market for years now. Despite some sectors apparently trying to shoot the product down from the shelves, the popularity of elect
The LTC3634 is ideal for cell Li-Ion applications as well as 5V and 12Vintermediate bus systems because of its 3.6V to 15V working input voltages. The LTC3634 incorporates a unique constant frequency/controlled on-time,current mode architecture, which is ideal for powering DDR applications from a12V input supply at high switching frequencies. Its termination voltage, VTT,is set to ½ of VDDQ down to 0.6V with accuracy of ±1.6%. The combination of amonolithic design and switching frequencies as high as 4MHz, which enable theuse of tiny, low cost capacitorsand inductors, provides a very compact, high efficiency solution for DDRpower applications. Each channelof the LTC3634 uses internal switches with RDS(ON) of only 65mOhms and 130mOhmsto deliver efficiencies as high as 95%. The two channels run 180 degrees out ofphase, minimizing the size of both input and output capacitance. An on-chipbuffer capable of driving a 10mA load provides a low noise reference output(VTTR) also at VDDQ/2. Additional features include power good voltage monitors,input overvoltage and over temperature protection, and short circuitprotection. TheLTC3634EUFD uses a 4mm x 5mm QFN-28, while LTC3634EFE is available in a 28-leadTSSOP package. Prices of both prices are at $4.25 and $4.40 each in 1,000-piecequantities. Industrial grade versions, the LTC3634IUFD and LTC3634IFE, areguaranteed to operate over the -40°C to 125°C operating junction temperaturerange and are priced at $4.72 and $4.89 each, respectively, in 1,000-piecequantities. Its features:1. 3.6V to15V Input Voltage Range2. VDDQ, VTT,VTTR Outputs3. Up to ±3AOutput Current4. Up to 95%Efficiency5. Selectable90°/180° Phase Shift Between Channels6. AdjustableSwitching Frequency:500kHz to 4MHz7. 10mABufferedVTTR = VDDQ/2 = VTT Reference8. ± 1.6%Accurate VTTR at 0.75V 9.OptimalVOUT Range: 0.6V to 3V10. CurrentMode Operation for Excellent Line & Load Transient Response11. ExternalClock Synchronization12.Short-Circuit Protected13. InputOvervoltage & Overtemperature Protection14. PowerGood Status Outputs15. Availablein (4mm x 5mm) QFN-28 & Thermally Enhanced 28-Lead TSSOP Packages Article source: http://www.hqew.net/events/news-article/244.html
Linear,Announces,The,LTC3634,S