PM6686 STMicroelectronics, PM6686 Datasheet - Page 5

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PM6686

Manufacturer Part Number
PM6686
Description
Dual Step-down Controller With Adjustable Voltages, Adjustable Ldo And Auxiliary Charge Pump Controller For Notebook
Manufacturer
STMicroelectronics
Datasheet

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PM6686
Figure 49.
Figure 50.
Figure 51.
Figure 52.
Figure 53.
Figure 54.
Figure 55.
Figure 56.
Figure 57.
Figure 58.
Figure 59.
Inductor current and output voltage in NA SKIP mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Internal supply diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Current waveforms in current limit conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Current limit circuit block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
VOUT2 behavior if EN2 is connected to VREF2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Charge pump application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
VIN pin filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
VCC and PVCC filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Bootstrap circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Current paths, ground connection and driver traces layout . . . . . . . . . . . . . . . . . . . . . . . . 46
Package dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Doc ID 15281 Rev 4
List of figures
5/50

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