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TPS43061: How can TPS43061 completely shut off?

Part Number: TPS43061
Other Parts Discussed in Thread: LM5121

Hello!

Now, I am testing the TPS43061 to boost input 5V to output 8V/3A.

When the EN is floating or pulled high, I get 8V output properly. However, the 4.7V output at load is still measured although the EN pin is pulled low to Gnd.

It seems high side MOS doesn't turn off by HDRV which is always measured as 5V.

Is there any way to turn off the TPS43061 fully to isolate input voltage from the load when the EN is shut off?

T758V3 BOOSTER to 8V_3A.pdf