Typical operating characteristics (continued) – Rainbow Electronics MAX8707 User Manual
Page 12
MAX8707
Multiphase, Fixed-Frequency Controller for
AMD Hammer CPU Core Power Supplies
12
______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Circuit of Figure 1. V
IN
= 12V, V
CC
= 5V, SUS = SKIP = GND, SHDN = V
CC
, V
SUSV
= 0.80V, T
A
= +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
(I
L1
), 10A/div
E. INDUCTOR CURRENT
(I
L3
), 10A/div
100
µs/div
0
3.3V
A
B
C
D
E
0
1.30V
0.80V
5V
SUSPEND TRANSITION
(SKIP = GND)
MAX8707 toc23
A. SUS, 5V/div
B. V
OUT
, 500mV/div
C. DRSKP, 5V/div
D. INDUCTOR CURRENT
(I
L1
), 10A/div
E. INDUCTOR CURRENT
(I
L3
), 10A/div
40
µs/div
0
3.3V
A
B
C
D
E
0
1.30V
0.80V
5V
D1 (25mV) VID TRANSITION
MAX8707 toc24
A. D1, 5V/div
B. V
OUT
, 25mV/div
C. INDUCTOR CURRENT
(I
L1
), 10A/div
D. INDUCTOR CURRENT
(I
L3
), 10A/div
20
µs/div
0
0
3.3V
A
B
C
D
0
1.30V
1.275V
D3 (200mV) VID TRANSITION
MAX8707 toc25
A. D3, 5V/div
B. V
OUT
, 200mV/div
C. INDUCTOR CURRENT
(I
L1
), 10A/div
D. INDUCTOR CURRENT
(I
L3
), 10A/div
20
µs/div
0
0
3.3V
A
B
C
D
0
1.30V
1.10V