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High-Res Image Data Sheet Word Document

IO-Link Transceiver Includes Integrated Step-Down Regulator & LDO

MILPITAS, CA - June 30, 2014 - The LT3669 is an IO-Link PHY compatible (COM1/COM2/COM3) industrial transceiver that includes a high efficiency step-down regulator and a low dropout linear regulator. The device offers cable interface protection to ±60V. Wake-up detect functionality as well as a programmable power-on reset timer are included for system reliability. The LT3669/-2 operates from a 7.5V to 40V input voltage range, making it ideal for
industrial sensor applications. The LT3669's internal switching regulator can deliver up to 100mA of load current,
whereas the LT3669-2 delivers up to 300mA. Both versions can deliver high efficiency at output voltages from 0.8V to
16V. The integrated LDO, powered from the switcher output, provides an additional output to offer additional design flexibility while maintaining high efficiency. Both versions feature constant frequency/synchronizable operation with programmable switching frequencies between 250kHz and 2.2MHz. This enables the use of tiny externals, which combined with the 4mm x 5mm QFN-28, offer a highly compact solution footprint for industrial IO-Link sensor applications.
The LT3669/-2 feature rugged line drivers with adjustable slew rates and current limit which are externally adjustable to optimize EMC performance. The line drivers can source/sink up to 250mA of current each or 500mA when connected together, with a minimal residual voltage of less than 2.1V. An adaptive line driver pulsing scheme safely switches heavy loads. The drivers are easily configurable as push-pull, pull-up or pull-down to maximize system flexibility. Other features include current limit detection and thermal shutdown. The LT3669EUFD and LT3669EUFD-2 are both available from stock in a 28-Pin thermally enhanced 4mm x 5mm QFN package. 1,000 piece pricing starts at
$3.55 each. Industrial grade versions, the LT3669IUFD and LT3669IUFD-2, are guaranteed to operate over the -40°C to +125°C operating junction temperature range and the high temperature grade versions, the LT3669HUFD and LT3669HUFD-2 are guaranteed to operate over the -40°C to +150°C. All versions are available from stock. For more information, visit www.linear.com/product/LT3669.

Summary of Features: LT3669/-2

IO-Link PHY Compatible (COM1/COM2/ COM3)

Cable Interface Protected to ±60V

Operation from 7.5V to 40V

Integrated Step-Down Switching Regulator

Max Load Current: 100mA (LT3669)/

300mA (LT3669-2)

Synchronizable & Adjustable Switching

Frequency: 250kHz to 2.2MHz

Output Voltage: 0.8V to 16V

Integrated 150mA LDO Linear Regulator

Rugged Line Drivers with Adjustable Slew

Rate & Current Limit

Adaptive Line Driver Pulsing Scheme to

Switch Heavy Loads Safely

Drivers Configurable as Push-Pull, Pull- Up or Pull-Down

Adjustable Power-On Reset Timer

Small 28-Pin Thermally Enhanced

4mm x 5mm QFN Package

IO-Link Transceiver with Integrated High Efficiency Step-Down Regulator & LDO Click Photo for High-Res Image 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.

Worldwide Contacts North America and General Information

John Hamburger
Tel: (408) 432-1900 ext. 2419 jhamburger@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233 ddickinson@linear.com

China (PRC)

Fanny Lau
Tel: 852-2428-0303 flau@linear.com
Angela Ao
Tel: (8610)6522 8081 angela.ao@ebacomms.com

Japan

Yoshikazu Funasaki Tel: 81-3-5226-7291 yfunasaki@linear.com
Takashi Matsuda
Tel: +81-3-3255-8411 linear@chugai-ad.co.jp

Korea

Desiree Park
Tel: +82-2-565-6625 desiree@ezwire.com

Taiwan

Alice Wang
Tel: +886-2-28974705 alice@ezwire.com

Germany

Ralf Stegmann
Tel: +49 (0) 71319234-11 ralf@ezwire.com

UK & Nordic

Alan Timmins
Tel: +44-1252-629937 alan@ezwire.com

Italy

Simona Labianca
Tel: +39 340 0571697 simona@ezwire.com

France

Clotilde Zeller
Tel: +33 1 4614 87 09 clotilde@ezwire.com

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