Rainbow-electronics MAX8720 Manual do Utilizador descarregar pdf (Página 22)

MAX8720

Dynamically Adjustable 6-Bit VID

Step-Down Controller

22 ______________________________________________________________________________________

D0–D5 VOLTAGE

S0, S1 VOLTAGE

PGOOD

SUS

SKIP

MODE FORCED-PWM FORCED-PWMPWM MODE PWM MODE

S0, S1D0–D5 D0–D5TARGET

AUTOSKIP MODE

HIGH IMPEDANCE HIGH IMPEDANCELOW THRESHOLD ONLY

OUT

SLEW RATE SET BY R

TIME

8x R

TIME

CLOCKS

8x R

TIME

CLOCKS

Figure 10. Suspend Transition in Forced-PWM Mode (

SKIP

= High)

D0–D5 VOLTAGE

S0, S1 VOLTAGE

PGOOD

SUS

SKIP

MODE FORCED-PWM FORCED-PWMSKIP MODE SKIP MODE

S0, S1D0–D5 D0–D5TARGET

AUTOSKIP MODE

HIGH IMPEDANCE HIGH IMPEDANCELOW T'HOLD ONLY LOW THRESHOLD ONLY

OUT

SLEW RATE SET BY R

TIME

8x R

TIME

CLOCKS

8x R

TIME

CLOCKS

LOW T'HOLD ONLY

Figure 11. Suspend Transition in Pulse-Skipping Mode (

SKIP

= GND)

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 30 31

Step-Down Controller 1

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