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TLV62090, TPS62085 / transition point of light load

Ryuji
Guru 20090 points
Other Parts Discussed in Thread: TLV62090, TPS62085, TPS62090, TPS62360

Hello,

Could you please let me know transition output current of light load of  TLV62090, TPS62085?

The customer would like to use TLV62090 or TPS62085 on the following conditions.
Vin=5V, Vout=1.1V, Iout=0.29A, Vout accuracy within 2%.

Since the these devices accuracy will be 3.7%(max) at the eco-mode, I would like to know the transition point.

Best Regards,
Ryuji Asaka

  • 0
    TI__Guru**** 150770 points
    Both D/S should explain that these are DCS-Control devices whose transition to PFM mode is at the DCM/CCM boundary load. The TPS62085 has only 2.1% accuracy in PFM mode.

    Depending on the application, I would recommend the TPS62090 with the 2.8 MHz frequency and 1 uH coil and 2x 22uF Cout or the TPS62360 family. A lower current device might be better if you don't need 3A.