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LM2841/LM2842,pdf datasheet (R
消耗积分:10 |
格式:rar |
大小:554 |
2009-09-29
王越建
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The LM2841 and LM2842 are PWM DC/DC buck (step-down)
regulators. With a wide input range from 4.5V-42V, they are
suitable for a wide range of applications such as power conditioning
from unregulated sources. They feature a low
RDSON (0.9Ω typical) internal switch for maximum efficiency
(85% typical). Operating frequency is fixed at 550 kHz (X version)
and 1.25 MHz (Y version) allowing the use of small
external components while still being able to have low output
voltage ripple. Soft-start can be implemented using the shutdown
pin with an external RC circuit allowing the user to tailor
the soft-start time to a specific application.
regulators. With a wide input range from 4.5V-42V, they are
suitable for a wide range of applications such as power conditioning
from unregulated sources. They feature a low
RDSON (0.9Ω typical) internal switch for maximum efficiency
(85% typical). Operating frequency is fixed at 550 kHz (X version)
and 1.25 MHz (Y version) allowing the use of small
external components while still being able to have low output
voltage ripple. Soft-start can be implemented using the shutdown
pin with an external RC circuit allowing the user to tailor
the soft-start time to a specific application.
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