LINEAR TECHNOLOGY CORPORATION
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MILPITAS, CA - October 28, 2014 - Linear Technology Corporation introduces the LTC2975, a 4-channel PMBus digital power system manager featuring current, power and energy monitoring of the intermediate bus input to point-of- load (POL) converters. Monitoring circuit board power and energy consumption is the first step in managing,
optimizing and reducing it to lower server utility and cooling costs. The LTC2975 relieves the host of burdensome
computation and polling by conveniently providing the energy consumed, reported in joules, and the elapsed time through a PMBus interface. When combined with its digital measurements of POL output voltages, currents and power, the input data enables long-term monitoring of a power system's conversion efficiency. The LTC2975 adds comprehensive software-based monitoring and control to the power system on FPGA, ASIC and DSP boards, accelerating time to market, enhancing system reliability and optimizing board energy consumption.
Supply output voltages are trimmed, margined and monitored using a best-in-class 16-bit ADC (analog-to-digital converter) with 0.25% total unadjusted error, improving board yields and long-term performance. Supply sequencing, supervision and EEPROM fault-logging are built in. Faults trigger EEPROM black box recording, simplifying failure analysis while providing insight into future system improvements. Multiple LTC2975s connect together to sequence and fault-manage more than four rails. Several PMBus compatible commands are provided for flexible programming and data read back of the power system. Register configuration is accomplished through the LTpowerPlay™ development environment, which supports all Linear Technology digital power system management devices. Once programmed, no software coding is needed for autonomous operation.
Specified over the 0°C to 70°C commercial and -40°C to 105°C industrial temperature ranges, the LTC2975 is offered in a 64-pin 9mm x 9mm QFN package. 1,000-piece pricing starts at $9.75 each. Device samples and evaluation
circuit boards are available online or from your local Linear Technology sales office. For more information, visit www.
linear.com/product/LTC2975.
● Digitally Manage Four Power Supplies
● Margin or Trim Supplies to Within 0.25%
of Target Voltage
● Monitor Supplies with ±0.25% Total
Unadjusted Error
● PMBus-Compliant Commands over I²C/ SMBus Digital Interface
● EEPROM for Configuration & Black Box
Fault Logging
● Supported by LTpowerPlay™ GUI
● Supply Sequencer - Time Based, Cascade, Supports Tracking
● Monitor (16-Bit ADC):
❍ Input Voltage, Current, Power & Energy
❍ Four Supply Output Voltages, Currents & Power
❍ Device & Four External
Temperatures
● Supervise: Input Voltage, Supply Voltages
& Currents, External Temperatures
● Coordinate Sequencing & Fault Management across Multiple LTC PSM Devices
● Operates Autonomously without
Additional Software
● Programmable Watchdog Timer
● Powered from 3.3V, or 4.5V to 15V
● -40°C to 105°C Operation
● 64-Pin 9mm x 9mm QFN Package
4-Channel PMBus Power System Manager with Input Energy Monitoring for Comprehensive Digital Power System Management Click Photo for High-Res 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) 432-1900 ext. 2419 jhamburger@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233 ddickinson@linear.com
Fanny Lau
Tel: 852-2428-0303 flau@linear.com
Angela Ao
Tel: (8610)6522 8081 angela.ao@ebacomms.com
Yoshikazu Funasaki Tel: 81-3-5226-7291 yfunasaki@linear.com
Takashi Matsuda
Tel: +81-3-3255-8411 linear@chugai-ad.co.jp
Desiree Park
Tel: +82-2-565-6625 desiree@ezwire.com
Alice Wang
Tel: +886-2-28974705 alice@ezwire.com
Ralf Stegmann
Tel: +49 (0) 71319234-11 ralf@ezwire.com
Alan Timmins
Tel: +44-1252-629937 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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