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LM3495,pdf datasheet (Emulated
消耗积分:2 |
格式:rar |
大小:550 |
2009-09-28
吴湛
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The LM3495 is a PWM buck regulator which implements a
unique emulated peak current mode control. This control
method eliminates the switching noise which typically limits
current mode operation at extremely short duty cycles and
high operating frequency. The switching frequency is programmable
between 200 kHz and 1.5 MHz, and can also be
synchronized to an external clock. The LM3495 is also very
fault tolerant with both switch node short, hiccup mode, and
adaptive duty cycle limit protection. A 0.6V 1% reference and
glitch free pre-biased start-up ensure the most demanding
digital loads operate reliably. Internal soft start and the ability
to track the output of another supply make the LM3495 versatile
and efficient.
unique emulated peak current mode control. This control
method eliminates the switching noise which typically limits
current mode operation at extremely short duty cycles and
high operating frequency. The switching frequency is programmable
between 200 kHz and 1.5 MHz, and can also be
synchronized to an external clock. The LM3495 is also very
fault tolerant with both switch node short, hiccup mode, and
adaptive duty cycle limit protection. A 0.6V 1% reference and
glitch free pre-biased start-up ensure the most demanding
digital loads operate reliably. Internal soft start and the ability
to track the output of another supply make the LM3495 versatile
and efficient.
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