Please let me know about 2-points below of LMR62421XMFX.
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・Is there a spec in Min ON/OFF time of EN pin?
・When a load current isn't flowing above certain of SW pin, is SW output keep while being off(shutdown)?
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【Background】
・Application:Backup power to 8×POSCAP
・When EN changed H⇒L⇒H at 10ms span, a few devices were disable condition
(158 unit per 3unit)
・Customer circuit is attached.
・When discharge by resister, EN was enabled(High state).
・When R56 connect 10kΩ pulldown, EN was enabled(High state).
Best regards,
Satoshi