40VIN/OUT, 1A Synchronous Buck-Boost DC/DC Converter Offers 2.7V to 40V Input & Output Range

News Release  www.linear.com
40VIN/OUT, 1A Synchronous Buck-Boost DC/DC Converter
Offers 2.7V to 40V Input & Output Range
MILPITAS, CA – April 29, 2014 – The LTC3114-1 is a synchronous, current-mode buck-boost
converter that delivers up to 1A of continuous output current from a wide range of power
sources, including single-cell Li-Ion, 24V/28V industrial rails and 40V automotive inputs. The
LTC3114-1’s 2.2V to 40V input and 2.7V to 40V output range provides a regulated output with
inputs above, below or equal to the regulated output, maximizing power source flexibility and
extending battery run time over step-down only solutions. The proprietary low noise buck-boost
topology incorporated in the LTC3114-1 provides a continuous jitter-free transition between
buck and boost modes, making it ideal for RF and other noise-sensitive applications.
The device’s selectable Automatic Burst Mode® operation lowers quiescent current to
only 30μA, improving light load efficiency and further extending battery run time. The
LTC3114-1 uses a constant 1.2MHz switching frequency and features pin-programmable average
output current and current monitor. Proprietary buck-boost PWM circuitry ensures low noise and
high efficiency while minimizing the size of external components. The combination of tiny
externals and a 3mm x 5mm DFN or TSSOP-16E package provides a compact solution footprint.
The LTC3114-1 incorporates four internal low RDS(ON) N-channel MOSFETs to deliver
efficiencies of up to 96%. Automatic Burst Mode operation lowers quiescent current to only
30μA, improving light load efficiency and extending battery run time. For noise-sensitive
applications, Burst Mode operation can be disabled. Furthermore, current-mode control improves
line and load transient responses while keeping compensation simple. Additional features include
40VIN/OUT, 1A Synchronous Buck-Boost DC/DC Converter
Offers 2.7V to 40V Input & Output Range
page 2
internal soft-start and inrush current limit, undervoltage lockout, thermal overload protection,
short-circuit protection and output disconnect.
LTC3114EDHC-1 is available in a 16-lead 3mm x 5mm DFN package and the
LTC3114EFE-1 is in a thermally enhanced 16-lead TSSOP package. Pricing starts at $3.95 each
for 1,000 piece quantities. Industrial grade versions, the LTC3114IDHC-1 and LTC3114IFE-1,
are guaranteed to operate over the -40°C to 125°C operating junction temperature range, priced
at $4.35 and $4.51 each, respectively, in 1,000-piece quantities. High temperature grade versions,
the LTC3114HDHC-1 and LTC3114HFE-1, are guaranteed to operate over the -40°C to 150°C
operating junction temperature range, priced at $4.60 and $4.76 each, respectively, in 1,000piece quantities. Finally high reliability versions, the LTC3114MPDHC-1 and LTC3114MPFE-1,
are guaranteed to operate over the 55°C to 150°C operating junction temperature range, priced
starting at $11.73 each, in 1,000-piece quantities. All versions are available from stock. For more
information, visit www.linear.com/product/LTC3114
Photo Caption: 40VIN/OUT, 1A Synchronous Buck-Boost DC/DC Converter
Summary of Features: LTC3114-1
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Regulates VOUT Above, Below or Equal to VIN
Single Inductor
Wide VIN Range: 2.2V to 40V
Wide VOUT Range: 2.7V to 40V
1A Output Current in Buck Mode
0.5A Output Current, VIN = 3.6V, VOUT = 5V
Programmable Average Output Current
Up to 96% Efficiency
Burst Mode® Operation, 30μA No-Load IQ
Current-Mode Control
1.2MHz Ultralow Noise PWM
Accurate RUN Pin Threshold
Thermally Enhanced, 16-Lead 3mm × 5mm DFN & TSSOP Packages
About Linear Technology 40VIN/OUT, 1A Synchronous Buck-Boost DC/DC Converter
Offers 2.7V to 40V Input & Output Range
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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, Burst Mode and µModule are registered trademarks of
Linear Technology Corp. All other trademarks are the property of their respective owners.
Press Contacts:
North America / Worldwide
UK & Nordic
John Hamburger, Director Marketing
Communications
[email protected]
Tel: 408-432-1900 ext 2419
Alan Timmins
[email protected]
Tel: +44-1-252-629937
Doug Dickinson, Media Relations Manager
[email protected]
Tel: 408-432-1900 ext 2233
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