Rainbow-electronics MAX1545 Manual de usuario descargar pdf (Pagina 12)

Typical Operating Characteristics (continued)

(Circuit of Figure 1, V

= 12V, V

= V

= 5V, SHDN = SKIP = V

, D0–D4 set for 1.5V (SUS = GND), S0–S1 set

for 1V (SUS = V

), OFS = GND, T

= +25°C, unless otherwise specified.)

MAX1519/MAX1545

Dual-Phase, Quick-PWM Controllers for

Programmable CPU Core Power Supplies

12 ______________________________________________________________________________________

OFFSET TRANSITION

MAX1519 toc23

0.2V

1.5V

s/div

A. V

OFS

= 0 TO 200mV, 0.2V/div

B. V

OUT

= 1.500V TO 1.475V, 20mV/div

C. I

, 10A/div

D. I

, 10A/div

10A LOAD

SUSPEND TRANSITION

(DUAL-PHASE PWM OPERATION)

MAX1519 toc24

3.3V

2.5A

1.5V

1.0V

s/div

A. SUS, 5V/div

B. V

OUT

= 1.5V TO 1.0V, 0.5V/div

C. I

, 10A/div

D. I

, 10A/div

5A LOAD, SKIP = V

, R

TIME

= 64.9k

Ω

SUSPEND TRANSITION

(SINGLE-PHASE SKIP OPERATION)

MAX1519 toc25

3.3V

10A

1.5V

1.0V

100

s/div

A. SUS, 5V/div

B. V

OUT

= 1.5V TO 1.0V, 0.5V/div

C. I

, 10A/div

D. I

, 10A/div

5A LOAD, C

OUT

= (4) 680

F, SKIP = SUS, R

TIME

= 64.9k

Ω

1.00V LOAD TRANSIENT

(10A TO 30A LOAD)

MAX1519 toc22

30A

10A

1.0V

s/div

A. LOAD CURRENT, (I

LOAD

= 10A TO 30A), 25A/div

B. OUTPUT VOLTAGE (1.00V NO LOAD), 50mV/div

C. I

, 10A/div

D. I

, 10A/div

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 42 43

MAX1519/MAX1545 1

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Rainbow-electronics MAX1545 Manual de usuario Pagina 12

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