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Linear Technology | LTC3103/4: 15V, 300mA Synchronous Buck Converters with Only 1.8µA Quiescent Current

12-13-2011 07:25 AM CET | Industry, Real Estate & Construction

Press release from: Linear Technology

/ PR Agency: xmedia gmbh
15V, 300mA Buck Converter with IQ=1.8 µA

15V, 300mA Buck Converter with IQ=1.8 µA

MILPITAS, CA – November 28, 2011 – Linear Technology announces the LTC3103 and the LTC3104, 15V, fixed frequency synchronous buck converters capable of delivering 300mA of continuous current to output voltages from 0.6V to 13.8V. The LTC3103 consumes just 1.8µA of quiescent current, while the LTC3104 (which offers a 10mA programmable LDO output) requires only 2.6µA of quiescent current. These devices are ideal for a wide range of
battery-powered applications including industrial control power, remote sensor networks, low power wireless systems and energy harvesting applications. Both devices operate from an input voltage range of 2.5V to 15V facilitating operation from a wide range of input sources, including single- or multi-cell batteries, supercapacitors and system rails.
The LTC3103 and LTC3104 operate at a fixed 1.2MHz switching frequency and utilize synchronous rectification to deliver efficiencies as high as 95%. For applications that demand low noise, both the LTC3103 and LTC3104 can operate in a “forced continuous mode” where the part will operate at the 1.2MHz switching frequency. The device can also be commanded to automatically transition from fixed frequency to Burst Mode® operation to achieve high efficiency over an extremely wide range of load currents. Internal compensation, small-footprint DFN and MSOP packages and fixed 1.2MHz switching frequency enable the use of just a few tiny external components to offer very compact solution footprints. An accurate, programmable RUN comparator offers the user flexibility in programming at what input voltage the part will be enabled. Other features include Power Good, integrated soft-start, and over-temperature protection. All versions are available from stock. For more information, visit www.linear.com/product/LTC3104 and www.linear.com/product/LTC3103

Photo Caption: 15V, 300mA Buck Converter with IQ=1.8 µA

Summary of Features: LTC3103 & LTC3104

• Ultralow Quiescent Current: 1.8μA (LTC3103), 2.6μA (LTC3104)
• Synchronous Rectification: Efficiency Up to 95%
• Wide VIN Range: 2.5V to 15V
• Wide VOUT Range: 0.6V to 13.8V
• 300mA Output Current
• 10mA LDO (LTC3104) with 1µA IQ
• User-Selectable Automatic Burst Mode® or Forced Continuous Operation
• Accurate & Programmable RUN Pin Threshold
• 1.2MHz Fixed Frequency PWM
• Internal Compensation
• Power Good Status Output for VOUT
• LTC3103 Available in Thermally Enhanced 3mm × 3mm × 0.75mm, 10-Pin DFN & 10-Pin MSOP Packages
• LTC3104 Available in Thermally Enhanced 3mm × 4mm × 0.75mm, 14-Pin DFN & 16-Pin MSOP Packages

Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for three decades. The Company’s products provide an essential bridge between our analog world and the digital electronics in communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, and military and aerospace systems. Linear Technology produces power management, data conversion, signal conditioning, RF and interface ICs, and µModule subsystems.

LT, LTC, LTM, µModule, Burst Mode and are registered trademarks of Linear Technology Corp. All other trademarks are the property of their respective owners.

Linear Technology Corp.
Corporate Headquarters
1630 McCarthy Blvd.
Milpitas,CA 95035-7417

Ralf Stegmann
ralf@ezwire.com
Tel: +49 (0) 7131 9234–0

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