求助!!DC-DC 12V轉-27V、10mA用什么芯片做?
本人要用12V轉-27V.請各位大俠指點一下用什么芯片做比較好.穩壓精度是1%的.萬分感謝
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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
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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