Part Number: TPS7A91 Please let me check about TPS7A91. Table 2 of the data sheet P.18, the combination of output setting to Vout: 3.30V is R1: 3.57kΩ and R2: 1.15kΩ. The combination of R1: 4.7kΩ and R2: 1.5kΩ has a Vout closer to 3.30V.…
Part Number: TPS7A91 Hi team,
My customer is using our TPS7A9101DSKR . From the timing diagram for this DCDC is as below.
They would like to know why does the out voltage ramp up before EN triggers and how to improve it? Thanks.
Part Number: TPS7A91 Hi team,
Customer is using TPS7A91 in their system generate 1.8V, they use 0.1uF SS cap, and find the output voltage get a small overshoot to 1.8V, then drop ~40mV down to 1.76V, later slow back to 1.8V; below is their test waveform…
Part Number: TPS7A92 Other Parts Discussed in Thread: TPS7A91 Can TPS7A9201DSK be used as a drop-in replacement for TPS7A9101DSK? In particular, would you expect PSRR and noise performance to change, given no change to other components in the system,…
Part Number: TPS7A91 Hello team,
I received a question about reverse current of TPS7A91. I would appreciate if you could give us some advice.
Some LDOs recommend a discharge circuit outside the device between VOUT and VIN in consideration of when VIN…
Part Number: TPS7A91 Hi Team, Our customer has an irregular condition wherein an external source is connected to their circuitry which would directly apply 3.3V on the TPS7A91 output, with no Vin supplied. Will this potentially damage the TPS7A91? Thanks…
Part Number: TPS7A91 Hi,
we designed in that part, but the dropout is in some case still to high.
So we spend a jumper between VIN and VOUT in case we need every mV (VIN is always low enough for our circuit behind).
Unfortunately we overread the manual…
Part Number: TPS7A91 Customer observed 1.4KHz ripple at output.
This was tested with clean input supply. TPS7A91 seems to be the one generating the 1.4KHz.
They tried changing capacitor values:
Pin 8 to Gnd: Tried 10nF & 10uF
Pin 1 to Pin 3 (FB)…
