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求助!!DC-DC 12V轉(zhuǎn)-27V、10mA用什么芯片做?

本人要用12V轉(zhuǎn)-27V.請各位大俠指點一下用什么芯片做比較好.穩(wěn)壓精度是1%的.萬分感謝
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2008-01-08 11:19
NCP3063,但你精度太高
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luzh07
LV.4
3
2008-01-11 12:56
KT6860可以滿足您的要求.
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80530576
LV.4
4
2008-01-11 13:29
@luzh07
KT6860可以滿足您的要求.
可以用AIC1650 MSN:alan_zhou88@hotmail.com
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2008-01-11 13:32
The LT02 is micropower step-up DC/DC converters in
a 5-lead low profile (1mm) ThinSOT package.The LT02
is designed for higher power systems with a 350mA
current limit and an input voltage range of 1.2V to 15V.
Otherwise, the device is functionally equivalent.Both
devices feature a quiescent current of only 20A at no
load, which further reduces to 0.5uA in shutdown. A
current limited, fixed off-time control scheme conserves
operating current, resulting in high efficiency over a broad
range of load current. The 36V switch allows high
voltage outputs up to 34V to be easily generated in a simple
boost topology without the use of costly transformers. The
LT02's low off-time of 400ns permits the use of tiny, low
profile inductors and capacitors to minimize footprint and
cost in space-conscious portable applications.

此款沒有問題. 精度0.1%/V
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