Other Parts Discussed in Thread: TPS61120 This is the ripple that I am seeing on the Vout of the TPS61120
Vin = 5.0V
Vout = 5.5V
C6 = 2.2uF mono
C4 = 100uF tant
L1 = 10uH
Why is this low frequency ripple there?
Other Parts Discussed in Thread: TPS61120 Hello,
I'm having some intermittent issues with the TPS61120, this is set up to provide 5.3V from a Li-Ion battery. On most boards this works, but on some boards the switching never starts. The FB pin voltage…
Other Parts Discussed in Thread: TPS61120 I am deeply in trouble with TPS61120. It has unique power save features and low power dissipation but I cannot work it out properly.
I have set the output of swmode section to 5.5V and set the LDO section to 5V…
Other Parts Discussed in Thread: AFE4490 , TPS61120 Hi,
We are working with AFE4490 on a custom made board. Everything goes great: read and write on any register, the pleth signal, TIA gain, RC values, Tx supply with 3V or 5 V etc.
The only issue is we…
Other Parts Discussed in Thread: TPS61120 , TPS61121 Will the device work without a resistor divider on the LBI input?
Will it work with SKIPen , EN , and LDOen tied to Vbat (Vbat <=4.5V)?
Will the converter run with Vbat < 3V when SKIPen is high?…
bq24253 is the best choice for the charger.
Since SYS will always be below 5.0V, I don't think you need the SEPIC TPS61130. You might consider the boost only TPS61120. In either case, I would connect the LDO input to SYS output of charger.
