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LM5008,pdf datasheet (High Vol
消耗积分:3 |
格式:rar |
大小:554 |
2009-09-29
李艳
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The LM5008 Step Down Switching Regulator features all of
the functions needed to implement a low cost, efficient, Buck
bias regulator. This high voltage regulator contains an 100 V
N-Channel Buck Switch. The device is easy to implement and
is provided in the MSOP-8 and the thermally enhanced LLP-8
packages. The regulator is based on a hysteretic control
scheme using an ON time inversely proportional to VIN. This
feature allows the operating frequency to remain relatively
constant. The hysteretic control requires no loop compensation.
An intelligent current limit is implemented with forced
OFF time, which is inversely proportional to Vout. This
scheme ensures short circuit protection while providing minimum
foldback. Other protection features include: Thermal
Shutdown, VCC under-voltage lockout, Gate drive under-voltage
lockout, and Max Duty Cycle limiter
the functions needed to implement a low cost, efficient, Buck
bias regulator. This high voltage regulator contains an 100 V
N-Channel Buck Switch. The device is easy to implement and
is provided in the MSOP-8 and the thermally enhanced LLP-8
packages. The regulator is based on a hysteretic control
scheme using an ON time inversely proportional to VIN. This
feature allows the operating frequency to remain relatively
constant. The hysteretic control requires no loop compensation.
An intelligent current limit is implemented with forced
OFF time, which is inversely proportional to Vout. This
scheme ensures short circuit protection while providing minimum
foldback. Other protection features include: Thermal
Shutdown, VCC under-voltage lockout, Gate drive under-voltage
lockout, and Max Duty Cycle limiter
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