xmedia - Buck-Boost DC/DC uModule Regulator Uses Few Components & Dissipates Less than 2.4W at 60WOUT

Store this angel in big sizeMILPITAS, CA – November 5, 2007 – Linear Technology Corporation extends its ancestors of DC/DC uModule regulator systems with articles that can adapt an achievement voltage from a capricious ascribe voltage greater than, beneath than or according to the achievement voltage. The LTM4605 is the aboriginal accessory in a new ancestors of buck-boost articles and operates from 4.5VIN to 20VIN, regulates an achievement voltage from 0.8V to16V and delivers an achievement ability up to 150W. The LTM4605 integrates a ancillary buck-boost DC/DC controller, four N-channel MOSFETs, ascribe and achievement bypass capacitors and the advantage chip in a 15mm x 15mm x 2.8mm acreage filigree arrangement (LGA) artificial molded package. Only an inductor, acknowledgment and faculty resistors and aggregate capacitors are appropriate to apparatus a actual low profile, bunched and top ability design. The LTM4605 provides a bunched regulator band-aid in applications such as networking, automated and automotive systems and high-power array operated devices.
With the LTM4605’s on-board proprietary 4-switch ancillary MOSFET design, the artefact achieves up to 97.3% ability in addition approach and up to 97.7% ability in blade approach (VIN: 4.5V to 20V, VOUT: 12V, IOUT: 5A). Whereas added topologies such as SEPIC
(Single Ended Primary Inductor Converter) crave as abounding as 20 apparatus and custom magnetics, this buck-boost uModule band-aid uses alone eight apparatus and an off-the-shelf inductor. In addition, the ability of a commensurable SEPIC ambit is about 76% to 84%. Furthermore, to abate abominable abundance harmonics, the LTM4605 is phase-lockable to an alien alarm abundance alignment from 200kHz to 400kHz. Safety appearance cover overvoltage and foldback accepted protection.
The LTM4605 is offered for operation from -40ºC to 85ºC temperature range.

Photo Caption: Simplest High Power Buck-Boost DC/DC Solution

Summary of Features: LTM4605

•Single Inductor Buck-Boost Architecture
•Synchronous 4-Switch Operation for High Efficiency (up to 98%)
•Wide Input Voltage Range: 4.5V to 20V
•Wide Output Voltage Range: 0.8V to 16V
•1% Set Point Output Voltage Accuracy
•15mm x 15mm x 2.8mm LGA Package

Press Contacts:

John Hamburger, Director Marketing Communications
jhamburger@linear.com
Tel: 408-432-1900 ext 2419

Doug Dickinson, Media Relations Manager
ddickinson@linear.com
Tel: 408-432-1900 ext 2233

About Linear Technology

Linear Technology Corporation, a architect of top achievement beeline chip circuits, was founded in 1981, became a accessible aggregation in 1986 and abutting the S&P 500 basis of above accessible companies in 2000. Linear Technology articles cover top achievement amplifiers, comparators, voltage references, caked filters, beeline regulators, DC-DC converters, array chargers, abstracts converters, communications interface circuits, RF arresting conditioning circuits, uModuleTM products, and abounding added analog functions. Applications for Linear Technology’s top achievement circuits cover telecommunications, cellular telephones, networking articles such as optical switches, anthology and desktop computers, computer peripherals, video/multimedia, automated instrumentation, aegis ecology devices, high-end chump articles such as agenda cameras and MP3 players, circuitous medical devices, automotive electronics, branch automation, action control, and aggressive and amplitude systems. For added information, appointment www.linear.com.

LT, LTC, LTM and are registered trademarks and uModule is a brand of Linear Technology Corp.