LINEAR TECHNOLOGY CORPORATION
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MILPITAS, CA June 30, 2015 Linear Technology Corporation announces the LTM4676A, a dual 13A or single
26A, current shareable up to 100A µModule® (micromodule) stepdown DC/DC regulator with PMBus serial digital
interface. The digital interface enables system designers and remote operators to command and supervise a system's power condition and consumption.
The LTM4676A µModule regulator has 70ms powerup time, 8ms ADC telemetry update rate and 400kHz PMBus compliant I²C serial interface. These improvements allow quicker system boot time and faster data collection of power in applications with maximum powerup time requirements such as PCIebased platforms. Examples of end products are optical transport systems, datacom and telecom switches and routers, industrial test equipment, robotics, and RAID and enterprise systems where the cost of electrical utilities, cooling and maintenance are critical and must be continuously and precisely measured.
The LTM4676A is comprised of EEPROM, power MOSFETs, inductors and supporting components. It has fast, dual analog control loops, precision mixed signal circuitry and is housed in a 16mm x16mm x 5.01mm BGA (ball grid array) package.
In addition to delivering power to a pointofload, the LTM4676A features configurability and telemetry monitoring of power and power management parameters over PMBus an open standard I²Cbased digital serial interface
protocol. The LTM4676A operates from a 4.5V to 17V input supply and steps down VIN to two outputs ranging from
0.5V up to 5.4V. Two channels can current share to provide up to 26A (i.e., 13A + 13A as one output). As many as
four LTM4676A devices can be multiphased to share current up to 100A output.
To evaluate the performance of the LTM4676A, the LTpowerPlay™ GUI (graphic user interface, free to download), USBtoPMBus converter and demo kit (DC1811BKIT) are available. With ±0.5% maximum DC output error over temperature, ±2.5% current read back accuracy, integrated 16bit deltasigma ADC and EEPROM, the LTM4676A combines bestinclass analog switching regulator performance with precision mixed signal data acquisition. At start up, output voltages, switching frequency and channel phase angle assignments can be set by pinstrapping
resistors.
The LTM4676A internal operating temperature range is from 40°C to 125°C. 1,000piece price is $33.95 each. For more information, visit www.linear.com/product/LTM4676A.
Dual 13A or Single 26A µModule, Current Shareable up to 100A Regulator with Fast Analog Control Loops & Digital Interface for Remote Power System Management
±2.5% Current Read Back Accuracy;
±0.5% Maximum DC Output Voltage
Error Over Temperature
70ms PowerUp & 8ms ADC Telemetry
Update Rate
16mm x 16mm x 5.01mm BGA Package, Includes Inductors, Power MOSFETs, DC/DC Converter, Data Acquisition System & EEPROM
Dual 13A DPSM µModule Regulator Click Photo for HighRes ImageThe USA list pricing shown is for budgetary use only. International prices may differ due to local duties, taxes, fees and exchange rates.
About Linear Technology
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 over 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, µModule® subsystems, and wireless sensor network products. For more information, visit
www.linear.com.
, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corp. All other trademarks are the property of their respective owners.
John Hamburger
Tel: (408) 4321900 ext. 2419 jhamburger@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233 ddickinson@linear.com
Fanny Lau
Tel: 85224280303 flau@linear.com
Angela Ao
Tel: (8610)6522 8081 angela.ao@ebacomms.com
Yoshikazu Funasaki Tel: 81352267291 yfunasaki@linear.com
Takashi Matsuda
Tel: +81332558411 linear@chugaiad.co.jp
Desiree Park
Tel: +8225656625 desiree@ezwire.com
Alice Wang
Tel: +886228974705 alice@ezwire.com
Ralf Stegmann
Tel: +49 (0) 7131923411 ralf@ezwire.com
Alan Timmins
Tel: +441252629937 alan@ezwire.com
Simona Labianca
Tel: +39 340 0571697 simona@ezwire.com
Clotilde Zeller
Tel: +33 1 4614 87 09 clotilde@ezwire.com
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