Medieplan 2010 DK
Send til en ven 
Udskriv29/6 2010 kl. 10:55
Komplet DC/DC-regulator
Linear Technology introducerer ultralow VIN DC/DC µModule regulator med integreret 5V MOSFET gate drive, der kan leverere 15A fra inputs ned til 1,5VIN (in english).
Linear Technology Corporation introduces the LTM4611, a complete switch mode DC/DC µModule point-of-load regulator capable of generating its own 5V N-channel MOSFET gate drive for very efficient voltage conversion from 3.3VIN or less to loads as low as 0.8V at up to 15A.
Alternative traditional low input voltage high power switch mode DC/DC converters with N-channel MOSFETs require a second regulator circuit to provide the 5V gate drive needed for logic level MOSFETs. Conversion efficiencies for the LTM4611 at full load (15A) are 92% for 3.3VIN to 2.5VOUT, 88% for 2.5VIN to 1.5VOUT, and 81% for 1.5VIN to 0.9VOUT.
Applications include systems with only 3.3V, 2.8V or 2.5V as the main power rail such as compact data storage and RAID systems, ATCA and optical networking cards, as well as medical and industrial equipment.
The LTM4611 includes the main DC/DC power circuit and the gate drive circuit plus inductors, MOSFETs, input and output bypass capacitors and compensation circuitry in a small 15mm x 15mm x 4.32mm LGA (Land Grid Array) package weighing only 2.6g.
The device boasts ±2% total DC output error over temperature, including line and load regulation as a result of its architecture, precision reference voltage and differential remote sense amplifier - a key specification for loads such as FPGAs and ASICs that require better than ±3% voltage accuracy for optimum performance. To increase output capability to 30A, 45A or 60A, two, three or four LTM4611 DC/DC µModule devices can be paralleled to share current.
The LTM4611 is rated for operation over the -40ºC to 125ºC operating junction temperature range. The 1,000-piece price starts at $19.45 each.
More information: www.linear.com/pr/4611.
Relaterede nyheder
- • On-line værktøj hjælper med valg IGBT
- • Ti lancerer unik LDO-løsning
- • Power-management af high-power Li-Ion systemer
- • Renesas introducerer ny power MOSFET-generation
- • Strålingshærdede spændingsregulatorer
- • Teknologigennembrud med ny switching regulator
- • Li-Ion/polymer batterilader leverer 4A
- • Nye generation af chip-ladere til superkondensatorer
- • Ny strømforsyningshåndbog fra XP Power
- • Design af DC/DC konverter uden brug af optoisolator
- • Single-phase DC/DC controller understøtter IMVP-6/6+/6.5
- • Ny generation af hot swap controllere
- • Skalerbare kraftværker til krævende applikationer
- • Digi-Key kan lavere strømforsyning fra Abracon
- • Isoleret DC/DC konverter opererer i ekstremt temperaturområde
Seneste nyheder
- • Digi-Key passerer milliarden
- • Nyt adaptermodul til FPGA-billedbehandling
- • 2,4 GHZ systemchip til ZigBee fjernbetjeninger
- • Store silicium solceller tilbyder høj effektivitet
- • Avnet Embedded opruster på web-fronten
- • Samarbejde om fælles 'ordbog' til vurdering af 3D videokvalitet
- • SDI equalizer baner vejen for lange kabeltræk
- • Fleksibel clock understøtter fra 1ms til 9,5 time
- • Lab-on-chip skal hjælpe cancerdiagnose
- • Mr. 'Hard To Find' fejrer 30 års jubilæum
- • Nye image-sensorer kan modstå ekstreme temperaturer
- • RFID smart cards 10-dobler datahastigheden
- • 100W-forsyninger med PFC
- • Intersil er nu hos Avnet Memec
- • Assembléon introducerer europæisk webshop
- • On-line værktøj hjælper med valg IGBT
- • Nye kompakte medico-forsyninger
- • Platform baner vej for 40 Gb/s mutipath kommunikation
- • Nye DIL switche sparer plads på boardet
- • 15W højttalersystem kan forsynes via USB
- • Remote controller med sikker RF-kommunikation
- • Dialog-teknologi i Renesas-platform
- • Kapacitiv touch controller gør det let at erstatte traditionelle knapper
- • Digitale tv-chips understøtter alle de nyeste teknologier
- • Intel køber Infineon’s wireless-aktiviteter