具体如图
由于运放需要双电源供电 而且是电池供电设备 原计划是 lm2662 +TPS7A49 +TPS7A30 但是发现成本太高 所以需要一个低成本的双电源方案
LDO这样链接作为正负双电源是否可行
有没有用过的
有什么缺点
求大神解答
或者是否有其他方案推荐
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