We have most likely triggered a latch-up problem on the CC1101 antenna pins. It has triggered a latch-up resulting in a permanent current of approximately 230mA. This current is limited by the LDO which is powering the CC1101: TPS780300250DRV. The CC1101 has consumed 55mAh @2,5V before the battery was drained and the latch-up disappeared. After rebooting the CC1101 seems to work correctly. Is there any latch-up protection on the CC1101 antenna pins? We were wondering whether this latch-up has damaged the CC1101?
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