Skip to content

The Student Engineer
C2I Awards
Salary Survey
Latest Issue
Newsletter Signup
Employer Zone
Covid-19

News
In-depth
Opinion
JOBS
Sectors
Supplier Network

Search Login / Register Primary Menu

Close

Login or Register

Supplier Network +Add your company

Supplier Product

Back to previous

DC/DC converters Power supplies

60V low IQ dual output boost and buck synchronous DC/DC controller

By Analog Devices incorporates Linear Technology on 31st March 201631st March 2016

Product Details Supplier Info More products

Linear Technology Corporation introduces the LTC7813, a dual output (boost + buck), low quiescent current synchronous DC/DC controller. When cascaded, its independent step-up (boost) and step-down (buck) controllers regulate the output voltage from an input voltage that can be above, below, or equal to the output voltage, including during an automotive load dump or cold crank. Unlike conventional single inductor buck-boost regulators, the LTC7813’s cascaded boost and buck solution provides fast transient response with continuous, non-pulsating input and output currents. It substantially reduces ripple voltage and EMI, ideal for automotive, industrial and high power battery operated systems.

The LTC7813 operates from an input voltage of 4.5V to 60V during start-up and maintains operation down to a 2.2V input after start-up. The boost converter can produce an output voltage up to 60V and the buck converter produces an output voltage ranging from 0.8V to 60V with the entire system achieving an efficiency as high as 98%. In addition, this device can be configured for Pass-Through or Wire Mode with the synchronous Boost MOSFET continuously on and the buck converter running at 99% duty cycle resulting in the input voltage being passed to the output with minimal voltage drop.

The LTC7813 can be configured for Burst Mode operation, reducing quiescent current to 29µA with the buck channel on (34µA for both on) in sleep mode, a useful feature for preserving battery run times. The powerful 1Ω onboard all N-channel gate drivers minimize MOSFET switching losses and provide an output current of more than 10 amps per channel, limited only by external components. The output current for each converter is sensed by monitoring the voltage drop across the inductor (DCR) or by using a separate sense resistor.

The LTC7813’s current mode architecture enables a fixed selectable frequency from 50kHz to 900kHz or it can be synchronized to an external clock from 75kHz to 850kHz. Additional features include adjustable gate drive voltage, soft-start or tracking, and foldback current limit, output overvoltage protection, run control and a power good output signal.

The LTC7813 is available in a 32-lead 5mm x 5mm QFN package. The 1,000-piece price starts at $4.82 each.

Analog Devices incorporates Linear Technology

Analog Devices (NASDAQ: ADI) is a leading global high-performance analogue technology company dedicated to solving the toughest engineering challenges.

Visit our website 01932 358530

Analog Devices is the leading global high-performance analog technology company dedicated to solving the toughest engineering challenges. We enable our customers to interpret the world around us by intelligently bridging the physical and digital with unmatched technologies that sense, measure, power, connect and interpret. We create innovative solutions to solve design challenges in instrumentation, automation, communications, healthcare, automotive and numerous other industries. The company is a global leader in the design and manufacturing of analog, mixed signal, and DSP integrated circuits to help solve the toughest engineering challenges. Visit http://www.analog.com.

View full profile

Electrical and electronic components

Independent Research Surveys Manufacturing Executives: Real-time Data from Connected Factory is Key to Driving Innovation and Delivering Competitive Advantages

8th April 2021 10:11 am 8th April 2021 10:11 am

Electrical and electronic components

Analog Devices Announces Complete Radio Platform for 5G O-RAN Ecosystem

25th March 2021 4:58 pm 25th March 2021 4:58 pm

Electrical and electronic components

Analog Devices and Arrow Announce Next Monthly Pan-European Webinar to be held on 31st March at 2.00pm (3.00pm CET)

18th March 2021 11:42 am 18th March 2021 11:42 am

Electrical and electronic components

Analog Devices, University of Limerick and Stripe Collaborate to Leverage Software Technology for the Transformation of Engineering Education

3rd March 2021 11:06 am 3rd March 2021 11:06 am

Electrical and electronic components

Analog Devices’ Battery Management System ICs and Automotive Audio Bus Power Volvo’s All Electric XC40 SUV

24th February 2021 10:16 am 24th February 2021 10:30 am

Electrical and electronic components

Analog Devices at embedded world 2021 Digital

17th February 2021 11:15 am 17th February 2021 11:15 am

Explore

SECTORS
CAREERS
SKILLS AND CAREERS
POLICY & BUSINESS
VIDEOS
EVENTS
WEBINARS
CLASSIC ARCHIVE
C2I 2020 Winners Book
BACK ISSUES
NEWSLETTER SIGNUP
TECH TRENDS 2021

Twitter
LinkedIn
Instagram
Flip

Advertise
Contact us
Cookies
Digital edition
Magazine subscription
Privacy
Website Terms and Conditions

Copyright © Mark Allen Engineering Ltd (a Mark Allen Group company) 2019

Mark Allen Engineering Limited
Registered Office: Mark Allen Group, St Jude's Church, Dulwich Road, London, SE24 0PB
Registered in England No. 11569365