76V, 1A Buck Converter Has Only 12µA Quiescent Current

News Release  www.linear.com
76V, 1A Buck Converter Has Only 12µA Quiescent Current
MILPITAS, CA – March 24, 2014 – Linear Technology announces the LTC3637, a 76V inputcapable high efficiency buck converter that delivers up to 1A of continuous output current. It
operates from an input voltage range of 4V to 76V, making it ideal for telecom, industrial,
avionic and automotive applications. The LTC3637 utilizes a programmable peak current-mode
design to optimize efficiency over a broad range of output currents. It delivers efficiencies as
high as 90% and requires only 12µA of quiescent current, maximizing battery run time. A userprogrammable output current limit can set output current from 100mA to 1A as required by the
application. The LTC3637 can be programmed with fixed output voltages of 1.8V, 3.3V or 5V or
a resistor divider can be used to program outputs from VIN to 0.8V. The LTC3637’s thermally
enhanced MSOP or 3mm x 5mm DFN packages offer additional pin spacing required for high
voltage inputs. The combination of its MSOP or DFN package and only four tiny externals
provide a highly compact solution footprint for a wide array of applications.
The LTC3637 utilizes an internal 350mΩ power MOSFET that draws only 12µA at no
load while maintaining output voltage regulation, making it ideal for always-on battery-powered
applications. Due to the inherent stability of the converter, no external compensation is required,
thereby simplifying design and minimizing the solution footprint. Additional features include a
precise 0.8V +1% feedback voltage reference and internal or external soft-start.
Pricing for the 16-Lead TSSOP version, the LTC3637EMSE and the DFN version, the
LTC3637EDHC, starts at $3.20 each. Industrial temperature versions, the LTC3637IMSE and
76V, 1A Buck Converter Has Only 12µA Quiescent Current
page 2
LTC3637IDHC, are tested and guaranteed to operate from a -40°C to 125°C operating junction
temperature, priced starting at $3.52 each. Automotive temperature versions, the LTC3637HMSE
and LTC3637HDHC, are tested and guaranteed to operate from a -40°C to 150°C operating
junction temperature, priced starting at $3.77 each. Finally high reliability versions, the
LTC3637MPMSE and LTC3637MPDHC, are tested and guaranteed to operate from a -55°C to
150°C operating junction temperature, priced starting at $9.50 each. All pricing is in 1,000-piece
quantities and all versions are available from stock. For more information, visit
www.linear.com/product/LTC3637
Photo Caption: 76V, 1A Buck Converter with Adjustable Output Current Limit
Summary of Features: LTC3637














Wide Operating Input Voltage Range: 4V to 76V
Internal 350mΩ Power MOSFET
No Compensation Required
Adjustable 100mA to 1A Maximum Output Current
Low Dropout Operation: 100% Duty Cycle
Low Quiescent Current: 12μA
Wide Output Range: 0.8V to VIN
0.8V +1% Feedback Voltage Reference
Precise RUN Pin Threshold
Internal & External Soft-Start
Programmable 1.8V, 3.3V, 5V or Adjustable Output
Few External Components Required
Programmable Input Overvoltage Lockout
Low Profile (0.75mm) 3mm × 5mm DFN & Thermally Enhanced MSE16 Packages
76V, 1A Buck Converter Has Only 12µA Quiescent Current
page 3
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.
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
Similar pages