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纽扣电池tlv61225 升压电路

Other Parts Discussed in Thread: TLV61225, TPS61322

输入是cr2032纽扣电池,升压后输出3.3V,负载工作10~15mA左右,待机10~20uA。
升压芯片TLV61225,

不带负载时升压电路有正常输出,加上负载时一上电纽扣电池就被拉低到0.5V了.

用电脑串口板的电压作为输入供电时也没有问题,用纽扣电池来供电就带不动负载。


直接用外部3V给升压电路供电没有问题,
去掉升压电路,直接用CR2032电池给负载供电也没有问题。
但通过CR2032电池给升压电路供电再带负载就不行


请教一下要怎么解决啊?