Other Parts Discussed in Thread: TPS62130
We are using 2 TPS62130 in a low voltage regulator in order to drive an ir source (1.3V) and for 5V board power
All components are aligned with power designer except additional filtering capacitors on the output.
2 problems were observed :
- pulsating output voltage when small load - 20mA. This was fixed with 2 1oouF tantalum caps. Observed on both 5V an 1.3V circuit.
- Output voltage drop upon load. Only 1.V supply is affected.
--- No-load voltage is stable at 1.3V
--- Output voltage drops to 1V @ 80mA load
Any suggestion how to troubleshoot this issue will be appreciated.
Thanks!