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LM1770,pdf datasheet (Low-Volt
消耗积分:3 |
格式:rar |
大小:559 |
2009-09-28
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The LM1770 is an efficient synchronous buck switching controller
in a tiny SOT23 package. The constant on-time control
scheme provides a simple design free of compensation components,
allowing minimal component count and board
space. It also incorporates a unique input feed-forward to
maintain a constant frequency independent of the input voltage.
The LM1770 is optimized for a low voltage input range
of 2.8V to 5.5V and can provide an adjustable output as low
as 0.8V. Driving an external high side PFET and low side
NFET it can provide efficiencies as high as 95%.
in a tiny SOT23 package. The constant on-time control
scheme provides a simple design free of compensation components,
allowing minimal component count and board
space. It also incorporates a unique input feed-forward to
maintain a constant frequency independent of the input voltage.
The LM1770 is optimized for a low voltage input range
of 2.8V to 5.5V and can provide an adjustable output as low
as 0.8V. Driving an external high side PFET and low side
NFET it can provide efficiencies as high as 95%.
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