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  l4990a Datasheet PDF File

For l4990a Found Datasheets File :: 3    Search Time::1.922ms    
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    SGS Thomson Microelectronics
STMICROELECTRONICS[STMicroelectronics]
Part No. AN908
OCR Text l4990a, FOR Pentium Pro(R) PROCESSOR by Nicola Tricomi SYSTEM DESCRIPTION The actual generation of Pentium Pro(R) microprocessors, requires a power supply with a programmable output voltage that decreases with the increasing of the proc...
Description HIGH PERFORMANCE VRM USING l4990a, FOR PENTIUM PRO PROCESSOR
APPLICATION NOTE

File Size 87.63K  /  9 Page

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    SGS Thomson Microelectronics
Part No. AN1060
OCR Text ... 400 vdc 7.5 k w 33 k w 22 w to l4990a or l5991a uc3843a/b or uc3845a/b or l4981a l4955v5.1 100 m f 13 2 transformer specs: core: e20x10x6, 3c85 material or equivalent 0.5 mm air gap for a primary inductance of 1.7 mh n1: 2 series windings...
Description FLYBACK CONVERTERS WITH THE L6561 PFC CONTROLLER

File Size 93.36K  /  11 Page

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    L4990A L4990AD L4990D L4990 1583

STMicroelectronics
Part No. l4990a l4990aD L4990D L4990 1583
OCR Text l4990a PRIMARY CONTROLLER CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 0.45mA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1A) FULLY LATCHED PWM LOGIC WITH DOUBLE PULSE SUPPRESSION PROGRAMMABLE ...
Description PRIMARY CONTROLLER
From old datasheet system

File Size 320.44K  /  24 Page

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