Product category:
Power Supply ICs and Controllers
News Release from: Linear Technology Corp | Subject: LT3684
Edited by the Electronicstalk Editorial
Team on 13 August 2007
Regulator shrinks automotive supplies
Within its input voltage range of 3.6 to 34V, the LT3684 is ideal for load dump and cold-crank conditions found in automotive applications.
The LT3684 form Linear Technology is a 2A, 34V step-down switching regulator packaged in a 3 x 3mm DFN or MSOP-10E package The LT3684 operates within an input voltage range of 3.6 to 34V (36V maximum), making it ideal for load dump and cold-crank conditions found in automotive applications
This article was originally published on Electronicstalk on 3 Oct 2008 at 8.00am (UK)
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Its 3.2A internal switch can deliver up to 2A of continuous output current at voltages as low as 1.265V.
Switching frequency is user programmable from 300kHz to 2.8MHz, enabling the designer to optimise efficiency and to avoid critical noise-sensitive frequency bands.
The combination of its 3 x 3mm DFN-10 package (or thermally enhanced MSOP-10E) and high switching frequency, which keeps external capacitors and inductor small, provides a very compact, thermally efficient footprint.
The LT3684 uses a high efficiency 3.2A, 0.18ohm switch, with the necessary boost diode, oscillator, control and logic circuitry integrated into a single die.
Special design techniques enable high efficiency over a wide input voltage range, and its current mode topology enables fast transient response and excellent loop stability.
Other features include a power good flag and soft-start capability.
The LT3684EDD and LT3684EMSE pricing starts at US $2.95 each for 1000-piece quantities.
The LT3684IDD and LT3684IMSE are tested and guaranteed to operate from a -40 to +125C operating junction temperature, are priced at $3.54 each.
All versions are available from stock. Request a free brochure from Linear Technology Corp ...
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