STPMIC25 datasheet(144/145 Pages) STMICROELECTRONICS

144 / 145 page

List of figures

Figure 1.

Typical application schematic .......................................................... 3

Figure 2.

Pin configuration WFQFN 56L top view ................................................... 5

Figure 3.

LDO startup/shutdown timings ........................................................ 27

Figure 4.

LDO1 input supply mux ............................................................. 28

Figure 5.

LDO3 uses in sink/source mode with DDR4 ............................................... 30

Figure 6.

LDO3 uses in sink/source mode with DDR3L .............................................. 30

Figure 7.

LDO3 uses in bypass mode with lpDDR4 ................................................. 30

Figure 8.

Buck dynamic voltage scaling (DVS) .................................................... 33

Figure 9.

Buck startup/shutdown timings ........................................................ 34

Figure 10.

PMIC state machine ............................................................... 37

Figure 11.

PMIC POWER_UP and POWER_DOWN sequence example ................................... 41

Figure 12.

PONKEYn debounce filter behavior..................................................... 42

Figure 13.

VIN monitoring thresholds............................................................ 44

Figure 14.

VBUS debounce filter behavior ........................................................ 45

Figure 15.

PWRCTRLx logic circuitry principle (TO BE CONTROLLE BY DESIGN) ........................... 49

Figure 16.

Delay rising and delay falling behaviors example............................................ 51

Figure 17.

Regulator independent reset behaviors example ............................................ 52

Figure 18.

Reset power-cycle sequence example ................................................... 54

Figure 19.

Thermal protection thresholds ........................................................ 55

Figure 20.

I²C read operation ................................................................. 57

Figure 21.

I²C write operation................................................................. 58

Figure 22.

WFQFN 56L (6.5X6.5X0.9) package outline .............................................. 132

STPMIC25

List of figures

DS14278 - Rev 3

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