EEVblog Electronics Community Forum
Electronics => Repair => Topic started by: zoolf on February 09, 2022, 01:46:41 pm
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Hi,
so I try to fix my laptop, when charger is plugged an IC TPS51285a heat up a lot, so I changed it but still same problem, so when I inject 19v 1amps, in the 19v main rail that chip heat up, but when I inject less than 1amps (500mA) the chip is pulsing, i observe it with IR cam it, but I have a 6 pin chip with marking 8KB RX (RX is vertical) heat a little.
can you help me identify this chip?
Attached the Pic