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| MAX1519 Datasheet, PDF (13/43 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, D0âD4 set for 1.5V (SUS = GND), S0âS1 set
for 1V (SUS = VCC), OFS = GND, TA = +25°C, unless otherwise specified.)
SINGLE-PHASE SKIP TO DUAL-PHASE
PWM TRANSITION
MAX1519 toc26
5V
A
1.5V
B
0A
C
0A
D
20µs/div
A. SKIP = VCC TO GND, 5V/div
B. 1.5V OUTPUT, 50mV/div
C. IL1, 10A/div
D. IL2, 10A/div
2A LOAD
DUAL-PHASE SKIP TO DUAL-PHASE
PWM TRANSITION
MAX1519 toc27
5V
2V
A
1.5V
B
0A
C
0A
D
20µs/div
A. SKIP = VCC TO REF, 5V/div
B. 1.5V OUTPUT, 50mV/div
C. IL1, 10A/div
D. IL2, 10A/div
2A LOAD
100mV DAC CODE TRANSITION
MAX1519 toc28
3.3V
0V
A
1.5V
B
1.4V
5A
C
5A
D
20µs/div
A. D1, 5V/div
B. VOUT = 1.50V TO 1.40V, 100mV/div
C. IL1, 10A/div
D. IL2, 10A/div
10A LOAD
400mV DAC CODE TRANSITION
MAX1519 toc29
3.3V
0V
A
1.5V
1.1V
B
5A
C
5A
D
40µs/div
A. D3, 5V/div
B. VOUT = 1.50V TO 1.10V, 0.5V/div
C. IL1, 10A/div
D. IL2, 10A/div
10A LOAD
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