Deutsch | Francais | | | |
Linear Logo News Release  |  www.linear.com  
 

60V, 500mA (Isw) 200kHz Step-Down DC/DC Converter Draws only 100uA Quiescent Current & Features a 140°C Maximum Junction Temperature

MILPITAS, CA - MILPITAS, CA - April 18, 2007 - Linear Technology announces the H-Grade version of the LT3437 step-down switching regulator. The device operates from continuous inputs of 3.3V to 60V and withstands transients up to 80V, making it ideal for automotive and telecom applications. Its 500mA internal switch delivers up to 400mA of continuous output current at voltages as low as 1.25V. Burst Mode® operation reduces no-load quiescent current to less than 100uA, maximizing battery run-time for always on applications.

The H Grade version is tested and guaranteed to a junction temperature of 140°C, compared to the E and I Grade versions, which are specified for 125°C maximum junction temperature. All electrical specifications are identical for the E-, I- and H-grade versions. The LT3437 H-grade version is ideal for automotive and industrial applications which are subjected to high ambient temperatures.

The LT3437HFE is available from stock in a TSSOP-16E package. Pricing starts at $3.00 each for 1,000 piece quantities.

 
Summary of Features: LT3437H
Wide Input Range: 3.3V to 60V
Transient Protection to 80V
500mA Peak Switch Current
Burst Mode® Operation: 100uA Quiescent Current
Low Shutdown Current: IQ < 1uA
Defeatable Burst Mode Operation
200kHz Switching Frequency
Saturating Switch Design: 0.8Ohm On-Resistance
Peak Switch Current Maintained Over
Full Duty Cycle Range
1.25V Feedback Reference Voltage
Easily Synchronizable
Soft-Start Capability
Thermally Enhanced TSSOP-16E Package
 


60V Step-Down DC/DC Converter with
TJMAX = 140°C

Click Photo for High-Res Image

About Linear Technology

Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems. For more information, visit www.linear.com.

LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corp.
 

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@eba.com.cn

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

 

Germany
Ralf Stegmann
Tel: +49 (0) 7131/9234-0
ralf@ezwire.com


Korea

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


UK & Scandinavia

Alan Timmins
Tel: +44-1-252-629937
a.timmins@ntlworld.com

Japan

Kazuto Takahashi
Tel: 81-3-5226-7291
ktakahashi@linear.com

Hitoshi Kasai
Tel: +0422-47-5319
kasai@miacis.com


France
Clotilde Zeller
Tel: +33 1 4614 87 09
clotilde.zeller@zellercom.com

 

This message was distributed by