Just looking for some ideas:
Using TPS61107 step up converter from TI
according to the datasheet it should give me at least 400mA at 3.3V output with battery voltage 2.4V
https://www.electro-tech-online.com/custompdfs/2009/04/tps61107.pdf
if I start it with low load (100mA or less), it starts normally and I can increase load at this point up to 280mA(or may be higher) and it will keep stable and clean 3.3V
if I start it with load 200mA or higher, it never goes above battery voltage (2.1-2.4V) and if I keep it for few seconds kills chip permanently.
Schematics as shown in the datasheet (see attached), except:
- input capacitor is 22uF ceramic
- LDO is not used and not connected
- LBI is not connected
Any ideas?
Using TPS61107 step up converter from TI
according to the datasheet it should give me at least 400mA at 3.3V output with battery voltage 2.4V
https://www.electro-tech-online.com/custompdfs/2009/04/tps61107.pdf
if I start it with low load (100mA or less), it starts normally and I can increase load at this point up to 280mA(or may be higher) and it will keep stable and clean 3.3V
if I start it with load 200mA or higher, it never goes above battery voltage (2.1-2.4V) and if I keep it for few seconds kills chip permanently.
Schematics as shown in the datasheet (see attached), except:
- input capacitor is 22uF ceramic
- LDO is not used and not connected
- LBI is not connected
Any ideas?
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