Search results for "MOSFET"

Linear Technology annonce le LTC3787, un contrôleur DC/DC élévateur, synchrone, à une sortie et deux phases, de forte puissance, dans lequel les diodes élévatrices sont remplacées par des MOSFET canal N de haut rendement. Ceci permet de supprimer le radiateur normalement requis dans les convertisseurs élévateurs de puissances moyennes à élevées. Le LTC3787 peut fournir une tension de sortie de 24 V à 10 A, à partir d’une tension ...

Linear Technology annonce le LT3956, un convertisseur DC/DC 80 V, à détection de courant côté chaud, conçu pour fonctionner en tant que régulateur à courant constant et tension constante. Il est idéal pour piloter des DEL de forte intensité ainsi que pour charger des batteries et des supercondensateurs. Avec sa gamme de tensions d’entrée, de 4,5 V à 80 V, il est idéal dans un grand nombre d’applications incluant l’automobile, lâ...

Linear Technology Corporation présente le LTC3890/-1, un contrôleur DC/DC, abaisseur, synchrone, de forte tension, à deux sorties, qui ne consomme que 50 μA avec une sortie active et 60 μA lorsque les deux sorties sont actives. Avec ses deux sorties à l’arrêt, le LTC3890/-1 consomme à peine 14 μA. La gamme de tensions d’entrée, de 4 V à 60 V, constitue une protection contre les impulsions de forte tension, permet d’as...

Linear Technology introduces the LTC4353, a 0V to 18V dual ideal diode controller that replaces two high power Schottky diodes, enabling low loss ORing of multiple power sources with minimal disturbance to supply voltages.

Linear Technology Corporation introduces the LTC3613, a high frequency controlled on-time synchronous step-down DC/DC converter with differential output voltage sensing and clock synchronization. The controlled on-time, valley current mode architecture enables a very fast transient response by increasing its operating frequency during a transient event, allowing the LTC3613 to recover from a large load step in only a few clock cycles.

Linear Technology has introduced the LTC3836, a dual output 2-phase, low input voltage current mode synchronous step-down switching controller. Operation from an input voltage from 2.75V to 4.5V makes the device ideal for 3.3V, single cell Li-Ion, multi-cell Alkaline or NiMH input sources. It can generate two independent output voltages as low as 0.6V, powering the latest generation of low voltage DSPs and microcontrollers.

Linear Technology has introduced the LTC4263, an autonomous single-channel Power Sourcing Equipment (PSE) controller with an onboard MOSFET for use in IEEE 802.3af Power Over Ethernet (PoE) compliant systems. Requiring only a few external components, the IC is a complete single-port PSE solution that detects, classifies and provides isolated 48V power to Powered Devices (PDs) connected to it. Offering standard-compliant AC or DC methods to sense ...

Linear Technology has introduced the LTC2952, a versatile power management IC with push-button on/off control for system power and system monitoring features. The power management function features two ideal PowerPath controllers suitable for applications requiring an ideal diode-OR function for load sharing or automatic switchover between two input power sources. The low loss switchover is achieved by regulating two external P-channel MOSFETs wi...

Linear Technology Corporation introduced the LTC4449, a high speed synchronous MOSFET driver designed to drive upper and lower power N-channel MOSFETs in a synchronous rectified converter topology. This driver, combined with one of Linear Technology's DC/DC controllers and power FETs forms a complete high efficiency synchronous regulator that can be used as a step-down or step-up DC/DC converter.

Linear Technology has introduced the LTC4269-1, LTC4269-2 and LTC4278, IEEE 802.3at compliant Power over Ethernet (PoE+) interface controllers with integrated switching regulators for high-power Powered Device (PD) applications up to 25.5W and beyond. The new IEEE 802.3at definition, also known as the PoE+ standard, simultaneously expands the power budget and improves the classification mechanism used by Power Sourcing Equipment (PSE) and PDs to ...