regulator

Linear Technology Corporation announces the LT3972, a 3.5A, 33VIN step-down switching regulator with Burst Mode operation to keep quiescent current under 75uA. The LT3972 operates within a VIN range of 3.6V to 33V, with overvoltage lockout protection against transients as high as 62V, making it ideal for load dump and cold-crank conditions commonly found in automotive applications. Its internal 4.6A switch can deliver up to 3.5A of continuous output current at voltages as low as 0.79V

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Linear Technology Corporation announces the LT3011, a high voltage micropower, low dropout regulator that delivers up to 50mA of continuous output current with a low dropout voltage of only 300mV at full load. The LT3011 features an input voltage range of 3V to 80V, delivering output voltages as low as 1.24V and up to 60V. The device's PowerGood flag indicates output regulation. However, a single capacitor may be used to program the delay between this regulated output level and the flag indication.

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ON Semiconductor, a global leader of efficient power solutions, has expanded its portfolio of low dropout (LDO) linear voltage regulators for automotive electronics modules that require very low ignition-off currents. Qualified to AEC-Q100 and operating across a wide temperature range, the new NCV86xx LDOs combine high levels of on-board functionality with typical quiescent currents (Iq) as low as 22 µA.

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Linear Technology Corporation announces the LT3653, a 1.2A, 1.5MHz monolithic current mode step-down switching regulator with a programmable output current limit. Typically, it is used with battery charger power path controllers to pre-regulate the output and optimize battery charger efficiency. Its wide operating input voltage of 7.5V to 30V makes the LT3653 ideal for a variety of input sources including unregulated 12V wall adapters, 24V industrial supplies and Firewire as well as automotive applications. Onboard input overvoltage lockout protects the device through input transients as high as 60V, such as those commonly found in automotive applications.

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Texas Instruments Incorporated introduced a sink/source double data rate (DDR) termination regulator that supports all power management requirements for DDR, DDR2, DDR3 and DDR4 low-power memory termination. The new easy-to-use regulator requires only 20 uF of ceramic output capacitance, nearly 80 percent less capacitance than competitive solutions. Designers can therefore use the device to achieve smaller and lower-cost DDR memory termination in modern, high-memory content electronics, including digital TVs, Set-Top boxes, VGA cards, telecom, datacom, notebook and desktop computers, and an increasingly wide range of consumer electronics.

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Texas Instruments Incorporated introduced a 4.5-V to 52-V wide-input voltage boost controller, intended for industrial and battery-powered applications where the output is a regulated current instead of a regulated voltage. In addition, TI launched two integrated low-dropout (LDO) regulators with internal protection circuits that simplify power design for industrial systems.

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Linear Technology Corporation introduces the LTM8021, a complete DC/DC uModule regulator point-of-load (POL) system with on-board inductor and power components in a package that resembles a surface-mount IC. The LTM8021 operates from input supplies from 3V to 36V (40Vmax) and delivers up to 500mA. The LTM8021's tiny footprint (6.25mm x 11.25mm), low profile (2.8mm) and light weight (0.49g), enable system designers to solder the device on the backside of the circuit board, creating room on top for digital ICs such as FPGAs, memory and passives including HDMI, Ethernet or SMA connectors.

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Programmable multi-output regulator meets UMPC specifications to maximize power density in next-generation multimedia products
Geneva, April 30,2008 - STMicroelectronics (NYSE: STM), a world leader in power applications, has combined all supply-voltage and reference sources for a multimedia chipset and DDR2/3 memory into a single device by introducing the PM6641 multi-output regulator.

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SUNNYVALE, CA February 21, 2008 Maxim Integrated Products (Pink Sheets: MXIM) introduces the MAX13410E - MAX13415E* half-duplex, RS-485/RS-422 transceivers with an integrated low-dropout (LDO) regulator. These transceivers utilize Maxim's proprietary AutoDirection control architecture to automatically enable the driver when transmitting data. AutoDirection control thus eliminates the need for a driver-enable control signal, as well as the optocouplers typically required for control-line isolation. To further save space and reduce cost, the integrated LDO regulator features a wide, 6V to 28V supply range, eliminating the need to regulate isolated power supplies. The MAX13410E%u2013MAX13415E are ideal for isolated-metering, automotive, and industrial applications.

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SUNNYVALE, CA 17, 2008 Maxim Integrated Products (Pink Sheets: MXIM) introduces the MAX8655, the first switching, step-down regulator to incorporate the MOSFETs and to shrink regulator packaging into the industry's smallest footprint an 8mm x 8mm x 0.8mm (height) TQFN. This device provides output currents of up to 25A. A wide 4.5V to 25V input-voltage range allows for internal bus architecture (IBA) applications, where input voltage can have a two-to-one variation. A breakthrough in power density, output current, and size, the MAX8655 is ideal for any application in which space, power, and versatility are crucial.

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