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MAX1519 Datasheet, PDF (12/43 Pages) Maxim Integrated Products – Dual-Phase, Quick-PWM Controllers for Programmable CPU Core Power Supplies
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Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 12V, VCC = VDD = 5V, SHDN = SKIP = VCC, D0–D4 set for 1.5V (SUS = GND), S0–S1 set
for 1V (SUS = VCC), OFS = GND, TA = +25°C, unless otherwise specified.)
1.00V LOAD TRANSIENT
(10A TO 30A LOAD)
MAX1519 toc22
30A
A
10A
1.0V
B
10A
0A
C
10A
0A
D
20µs/div
A. LOAD CURRENT, (ILOAD = 10A TO 30A), 25A/div
B. OUTPUT VOLTAGE (1.00V NO LOAD), 50mV/div
C. IL1, 10A/div
D. IL2, 10A/div
OFFSET TRANSITION
MAX1519 toc23
0.2V
A
0V
1.5V
B
5A
C
5A
D
20µs/div
A. VOFS = 0 TO 200mV, 0.2V/div
B. VOUT = 1.500V TO 1.475V, 20mV/div
C. IL1, 10A/div
D. IL2, 10A/div
10A LOAD
SUSPEND TRANSITION
(DUAL-PHASE PWM OPERATION)
MAX1519 toc24
3.3V
A
0V
1.5V
B
1.0V
2.5A
C
2.5A
D
40µs/div
A. SUS, 5V/div
B. VOUT = 1.5V TO 1.0V, 0.5V/div
C. IL1, 10A/div
D. IL2, 10A/div
5A LOAD, SKIP = VCC, RTIME = 64.9kΩ
SUSPEND TRANSITION
(SINGLE-PHASE SKIP OPERATION)
MAX1519 toc25
3.3V
A
0V
1.5V
B
1.0V
10A
C
0A
10A
D
0A
100µs/div
A. SUS, 5V/div
B. VOUT = 1.5V TO 1.0V, 0.5V/div
C. IL1, 10A/div
D. IL2, 10A/div
5A LOAD, COUT = (4) 680µF, SKIP = SUS, RTIME = 64.9kΩ
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