Other Parts Discussed in Thread: BQ29209
Hello everybody,
we use the TPS43000 as buck/boost regulator and we're having trouble with the shutdown current.
VIN and VOUT is connected to +5V (which is generated by an LDO/250mA) while VP is connected to a LiIon battery with 8,4V.
In Standby Mode of our product the TPS43000 should be shut down (Syn/SD Pin is high, >= 4,5V), but I measure around 600µA at VP. If I connect VIN/VOUT to VP (battery) it goes down to the shutdown current mentioned in the datasheet.
In addition I measure around 70µA at the FB pin 8 which I can't explain either.
Thanks in advance
Raphael