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2007-06-01 - Divers/Site Internet - Anglais - 29 page(s)

De Lima Jader, Saez Richard, Dualibe Fortunato , "MC34712 : 3A 1MHz Fully Integrated DDR Switch-Mode Power Supply (http://cache.freescale.com/files/analog/doc/data_sheet/MC34712.pdf)"

  • Codes CREF : Circuits intégrés (DI2531)
  • Unités de recherche UMONS : Electronique et Microélectronique (F109)
  • Instituts UMONS : Institut NUMEDIART pour les Technologies des Arts Numériques (Numédiart)
  • Centres UMONS : Centre de Recherche en Technologie de l’Information (CRTI)

Abstract(s) :

(Anglais) The SMARTMOS 34712 is a highly integrated, space efficient, low cost, single synchronous buck switching regulator with integrated N-channel power MOSFETs. It is a high performance point-of-load (PoL) power supply with the ability to track an external reference voltage. Its high efficient 3.0 A sink and source capability combined with its voltage tracking/sequencing ability and tight output regulation, ma kes it ideal to provide the termination voltage (V TT ) for modern data buses such as Double-Data-Rate (DDR) memory buses, including but not limited to DDR, DDR2, DDR3, and DDR4 memories. It also provides a buffered output reference voltage (V REF ) to the memory chipset The 34712 offers the designer the flexib ility of many control, supervisory, and protection functions to allow for easy implementation of complex designs. It is housed in a Pb-free, thermally enhanced , and space efficient 24 pin exposed pad QFN. Features •50 m Ω integrated N-channel power MOSFETs • Input voltage operating range from 3.0 V to 6.0 V • ± 1% Accurate output voltage, ranging from 0.6 V to 1.35 V • ± 1% Accurate buffered reference output voltage • Programmable switching frequency range from 200 kHz to 1.0 MHz with a default of 1.0 MHz • Overcurrent limit and short-circuit protection • Thermal shutdown • Output overvoltage and undervoltage detection • Active low power-good output signal • Active low standby and shutdown inputs

Notes :
  • (Anglais) © 2016 NXP B.V