Typical operating characteristics (continued) – Rainbow Electronics MAX8707 User Manual
Page 11
MAX8707
Multiphase, Fixed-Frequency Controller for
AMD Hammer CPU Core Power Supplies
______________________________________________________________________________________
11
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.)
LOAD TRANSIENT
(V
OUT
= 1.30V)
MAX8707 toc16
A. I
OUT
= 10A TO 65A,
50A/div
B. V
OUT
, 100mV/div
C. LX1, 10V/div
D. INDUCTOR CURRENT
(I
L1
), 10A/div
20
µs/div
0
0
65A
A
B
C
D
10A
1.30V
12V
10A
20A
LOAD TRANSIENT
(V
OUT
= 1.00V)
MAX8707 toc17
A. I
OUT
= 0 TO 30A,
50A/div
B. V
OUT
, 50mV/div
C. LX1, 10V/div
D. INDUCTOR CURRENT
(I
L1
), 10A/div
20
µs/div
0
0
30A
A
B
C
D
0
1.00V
12V
10A
TRANSIENT PHASE REPEAT
MAX8707 toc18
A. I
OUT
= 0 TO 70A,
100A/div
B. V
OUT
, 100mV/div
C. LX1, 10V/div
D. INDUCTOR CURRENT
(I
L1
), 10A/div
2
µs/div
0
0
70A
A
B
C
D
0A
1.30V
20V
20A
10A
V
IN
= 20V
DEEP-SLEEP TRANSITION
MAX8707 toc19
A. DPSLP, 5V/div
B. OFS, 200mV/div
C. V
OUT
, 25mV/div
D. INDUCTOR CURRENT
(I
L1
), 10A/div
E. INDUCTOR CURRENT
(I
L3
), 10A/div
20
µs/div
0
3.3V
A
B
C
D
E
0
0.2V
1.300V
1.275V
5A
5A
I
OUT
= 20A
SUSPEND EXIT TRANSITION
MAX8707 toc20
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
20
µs/div
0
3.3V
A
B
C
D
E
0
1.30V
0.80V
5V
SUSPEND TRANSITION
(SKIP = SUS)
MAX8707 toc21
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
200
µs/div
0
3.3V
A
B
C
D
E
0
1.30V
0.80V
5V