LINEAR TECHNOLOGY CORPORATION
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MILPITAS, CA November 26, 2014 Linear Technology announces the LT3790, a synchronous buckboost DC/DC controller that delivers up to 250W of power with a single IC. Its 4.7V to 60V input voltage range makes it ideal for a wide variety of automotive and industrial applications. Its output voltage can be set from 0V to 60V, making it well suited as a voltage regulator or battery/supercapacitor charger. The LT3790's internal 4switch buckboost controller operates from input voltages above, below or equal to the output voltage, making it ideal for applications such as automotive, where the input voltage can vary dramatically during stop/start, cold crank and load dump scenarios. Transitions between buck, passthrough and boost operating modes are seamless, offering a well regulated output in spite of wide variations of supply voltage. The LT3790's unique design utilizes three control loops to monitor input current, output current and output voltage to deliver optimal performance and reliability.
The LT3790 uses four external switching MOSFETs and can deliver up to 250W of continuous output power with efficiencies up to 98.5%. Output current accuracy of ±6% ensures precise current regulation while ±2% output voltage accuracy offers a precise output voltage, making it ideal for charging applications. Multiple LT3790s can be easily paralleled for higher power requirements. Furthermore, its switching frequency can be programmed between
200kHz and 700kHz or synchronized to an external clock. Additional features include output disconnect, input and output current monitors, a C/10 charge termination and integrated fault protection.
The LT3790EFE is available in a 38lead thermally enhanced TSSOP package, priced starting at $4.75 each in
1,000piece quantities. An extended temperature version, or Igrade LT3790IFE, is also available, priced starting at
$5.25 each in 1,000piece quantities. A high temperature version, or Hgrade, the LT3790HFE, is also available, priced starting at $5.50 each in 1,000piece quantities. Finally, an extended temperature version, or MPgrade, the LT3790MPFE, is also available, priced starting at $14.75 each in 1,000piece quantities. All versions are available from stock. For more information, visit www.linear.com/product/LT3790.
4Switch Single Inductor Architecture
Allows VIN Above, Below or Equal to
VOUT
Synchronous Switching: Up to 98.5%
Efficiency
Wide VIN Range: 4.7V to 60V
±2% Output Voltage Accuracy:
1.2V ≤ VOUT
±6% Output Current Accuracy:
0V ≤ VOUT
Input & Output Current Regulation with
Current Monitor Outputs
No Top FET Refresh in Buck or Boost
VOUT Disconnected from VIN During
Shutdown
C/10 Charge Termination & Output
Shorted Flags
Capable of up to 250W per IC Easy Parallel Capability to Extend Output Power
38Lead TSSOP with Exposed Pad
60V Input/Output Capable, Synchronous BuckBoost Controller 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 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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