Hi all,
I tested the tps61253evm board, input voltage Vin 4V, EN = 1.
At output load Iout smaller than 180mA, Vout was stable at about 5,17V. When I raised Iout to around 300mA, the output voltage Vout fell down to 3,5V (power supply at Vin provides max 4A). Arcording to figure 12 of datasheet ,tps61253 should be able to provide up to 1500mA at Vout = 5V.
Do you have any ideas for this strange behaviour?
Thanks in advance