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Survey Boost IC has Bypass Mode (12VDC)

Other Parts Discussed in Thread: TPS61178

Hi Sir,

I am survey boost IC has bypass function. Since our battery voltage is 9V-12.6V.
We need VBAT<VOUT(12VDC/2A) converter can bypass BAT voltage.
Looks TPS61178 maximum duty 93% @ 500kHz, thus converter just work under 11.6VDC kept output 12VDC, worst case just use drop voltage of diode, but have more power loss in diode.

a. 11.6VDC< VBAT < 12VDC, TPS61178 will turn off. (I need bypass mode)
b. 12VDC<12.6VDC, VOUT will flow though from VBAT by TPS61178 internal body diode of MOSFET.

Do you have suitable solution can advise me? thanks.