Hi Gene-san,
According to the following E2E thread, we understood that this device have “output pre-bias”.
http://e2e.ti.com/support/power_management/non-isolated_dcdc/f/196/p/397299/1405450#1405450
Additionally, we would like to know the behavior of output pre-bias function.
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[Q1]
When the output voltage is left (for example 5V), the internal Pch MOSFET is OFF and Nch MOSFET is ON.
After that time, when Nch MOSFET is OFF and Pch MOSFET is ON, is the load current sunk?
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[Q2]
Is the device not broken even if this behavior is repeated?
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[Our customer conditions]
-Vin=2.3V to 4.2V (1cell)
-Vout=6.0V
-Iout=Around 570mA (peak current)
-Cout=22uF
-Cload=47uF*2 + 1uF*2 + 0.1uF*2=96.2uF
Regards,
Kanemaru