Rainbow-electronics MAX8707 Manuel d'utilisateur télécharger pdf (Page 12)

MAX8707

Multiphase, Fixed-Frequency Controller for

AMD Hammer CPU Core Power Supplies

12 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

(Circuit of Figure 1. V

= 12V, V

= 5V, SUS = SKIP = GND, SHDN = V

, V

SUSV

= 0.80V, T

= +25°C, unless otherwise specified.)

SUSPEND TRANSITION

(SKIP = SUS)

MAX8707 toc22

A. SUS, 5V/div

B. V

OUT

, 500mV/div

C. DRSKP, 5V/div

D. INDUCTOR CURRENT

), 10A/div

E. INDUCTOR CURRENT

), 10A/div

100µs/div

3.3V

1.30V

0.80V

SUSPEND TRANSITION

(SKIP = GND)

MAX8707 toc23

A. SUS, 5V/div

B. V

OUT

, 500mV/div

C. DRSKP, 5V/div

D. INDUCTOR CURRENT

), 10A/div

E. INDUCTOR CURRENT

), 10A/div

40µs/div

3.3V

1.30V

0.80V

D1 (25mV) VID TRANSITION

MAX8707 toc24

A. D1, 5V/div

B. V

OUT

, 25mV/div

C. INDUCTOR CURRENT

), 10A/div

D. INDUCTOR CURRENT

), 10A/div

20µs/div

3.3V

1.30V

1.275V

D3 (200mV) VID TRANSITION

MAX8707 toc25

A. D3, 5V/div

B. V

OUT

, 200mV/div

C. INDUCTOR CURRENT

), 10A/div

D. INDUCTOR CURRENT

), 10A/div

20µs/div

3.3V

1.30V

1.10V

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 36 37

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Rainbow-electronics MAX8707 Manuel d'utilisateur Page 12

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