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LT3680/LT3680H,pdf,datasheet (

消耗积分:5 | 格式:rar | 大小:306 | 2009-09-20

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The LT3680 operates within a VIN range of 3.6V to 36V, making it ideal for load dump and cold-crank conditions found in automotive applications. The H-grade version operates up to a junction temperature of 150˚C, compared to the “E” and “I” versions’ 125˚C maximum junction temperature. All electrical specifications are identical for the E, I and H-grade versions. The H-grade devices are tested and guaranteed to the maximum junction temperature of 150˚C, making them are ideal for automotive and industrial applications which are subjected to high ambient temperatures.

The LT3680’s 4.6A internal switch can deliver up to 3.5A of continuous output current at voltages as low as 0.79V. The LT3680’s Burst Mode operation ensures ultralow quiescent current, well suited for applications such as automotive or telecom systems, which demand always-on operation and optimum battery life. Switching frequency is user programmable from 250kHz to 2.4MHz, enabling the designer to optimize efficiency while avoiding critical noise-sensitive frequency bands. The LT3680’s thermally enhanced MSOP-10E package and high switching frequency keep external inductors and capacitors small, providing a compact, thermally efficient footprint. Other features include external synchronization (from 250kHz to 2MHz), a power good flag and soft-start capability.

The LT3680HMSE is priced starting at $5.35 each in 1,000-piece quantities and is available from stock. For more information, visit www.linear.com.

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