Product category:
Power Supply ICs and Controllers
News Release from: Linear Technology Corp | Subject: LT1912
Edited by the Electronicstalk Editorial
Team on 07 April 2008
Wide-input regulator handles automotive
supplies
Small-footprint step-down switching regulator is ideal for load dump and cold-crank conditions found in automotive applications.
Available now from Linear Technology, the LT1912 is a 2A, 36V step-down switching regulator packaged in a 3 x 3mm DFN (or MSOP-10E) The provision of a 3.6 to 36V input voltage range makes the LT1912 ideal for load dump and cold-crank conditions found in automotive applications
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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It has a 3.2A internal switch that can deliver up to 2A of continuous output current to voltages as low as 0.79V.
Switching frequency is user-programmable from 200 to 500kHz, optimising efficiency and keeping external components small.
The combination of the 3 x 3mm DFN-10 package (or thermally enhanced MSOP-10E) and tiny externals provide a very compact, thermally efficient footprint.
The LT1912 uses a high-efficiency 3.2A, 0.25ohm switch, with the necessary boost diode, oscillator, control and logic circuitry integrated on-chip.
Special design techniques and a new high voltage process enable high efficiency over a wide input voltage range, and the LT1912's current mode topology enables fast transient response and excellent loop stability.
Other features include external synchronisation (from 250 to 500kHz), a power good flag and soft-start capability.
The LT1912EDD and LT1912EMSE are priced starting at US $2.95 and $3.05 each, respectively, for 1000-piece quantities.
The LT1912IDD and LT1912IMSE, tested and guaranteed to operate from a -40 to +125C operating junction temperature, are priced at US $3.54 and $3.66 each, respectively in 1000-piece quantities.
All versions are available from stock. Request a free brochure from Linear Technology Corp ...
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