AMD Mobile Serial VID Dual-Phase
Fixed-Frequency Controller
Typical Operating Characteristics (continued)
(Circuit of Figure 2, V IN = 12V, V DD = V CC = 5V, V DDIO = 2.5V, T A = +25°C, unless otherwise noted.)
DYNAMIC OUTPUT-VOLTAGE
1-PHASE OUTPUT OVERLOAD
MAX17009 toc27
1-PHASE OUTPUT OVERVOLTAGE
MAX17009 toc28
TRANSITIONS (LIGHT LOAD)
MAX17009 toc29
3.3V
1.2A
5V
A
B
C
3.3V
1.2A
5V
A
B
C
1.3V
0.6V
12V
1.3V
0.6V
A
B
C
1.2V
D
1.2V
D
12V
1.3V
D
E
5V
1.2V
0
E
F
5V
1.2V
0
E
F
0.6V
2.5V
2.5V
F
G
A. PWRGD, 5V/div
B. V OUT1 , 1V/div
200 μ s/div
D. V OUT2 , 1V/div
E. DL2, 10V/div
A. PWRGD, 5V/div
B. V OUT1 , 1V/div
200 μ s/div
D. V OUT2 , 1V/div
E. DL2, 10V/div
A. V NBV_BUF , 1V/div
B. LX1, 20V/div
100 μ s/div
E. V OUT2 , 0.5V/div
F. SVC, 5V/div
C. DL1, 10V/div
F. V NBV_BUF , 1V/div
C. DL1, 10V/div
F. V NBV_BUF , 1V/div
C. V OUT1 , 0.5V/div
G. SVD, 5V/div
V IN = 12V, I LOAD1 = 3A TO 30A, I LOAD2 = 3A
V IN = 12V, I LOAD1 = 50mA, I LOAD2 = 3A
D. LX2, 20V/div
V IN = 12V, V DACS = 1.3V TO 0.6V TO 1.3V,
I LOAD1 = I LOAD2 = 3A
DYNAMIC OUTPUT-VOLTAGE
TRANSITIONS (HEAVY LOAD)
MAX17009 toc30
PGD_IN FALLING TRANSITIONS
MAX17009 toc31
1.3V
0.6V
12V
A
B
1.1V
0.8V
A
B
1.3V
C
0.8V
1.3V
0.6V
12V
1.3V
0.6V
2.5V
2.5V
D
E
F
G
1.1V
12V
12V
2.5V
2.5V
C
D
E
F
G
A. V NBV_BUF , 1V/div
B. LX1, 20V/div
C. V OUT1 , 0.5V/div
D. LX2, 20V/div
100 μ s/div
E. V OUT2 , 0.5V/div
F. SVC, 5V/div
G. SVD, 5V/div
10 μ s/div
A. V NBV_BUF , 200mV/div
B. V OUT1 , 200mV/div
C. V OUT2 , 200V/div
D. LX1, 20V/div
E. LX2, 20V/div
F. PGD_IN, 5V/div
G. PWRGD, 5V/div
V IN = 12V, V DACS = 1.3V TO 0.6V TO 1.3V,
I LOAD1 = I LOAD2 = 10A
V IN = 12V, V BOOT = 1.1V, V DAC1 = 0.8V, V DAC2 = 1.3V ,
V NBV_BUF = 0.8V, I LOAD1 = I LOAD2 = 3A
14
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