MAX8553(2003) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX8553
(Rev.:2003)

4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications

Maxim Integrated 

4.5V to 28V Input, Synchronous PWM Buck Controllers

for DDR Termination and Point-of-Load Applications

Typical Operating Characteristics (continued)

(VV+ = 12V, VOUT = 1.8V, circuit of Figure 1, TA = +25°C, unless otherwise noted.)

LOAD TRANSIENT 0A TO 20A TO 0A

(CIRCUIT OF FIGURE 1)

MAX8553/4 toc10

IOUT

10A/div

100mV/div

VOUT

AC-COUPLED

40µs/div

LOAD TRANSIENT -8A TO +8A TO -8A

(CIRCUIT OF FIGURE 2)

MAX8553/4 toc11

VOUT

20mV/div

AC-COUPLED

IOUT

40µs/div

VTT CONNECTED TO THE OUTPUT

0

5A/div

LOAD TRANSIENT -8A TO +8A TO -8A

(CIRCUIT OF FIGURE 2)

MAX8553/4 toc12

VOUT

20mV/div

AC-COUPLED

IOUT

0

5A/div

40µs/div

VTT CONNECTED AS SHOWN IN FIGURE 2

SWITCHING WAVEFORMS WITH 20A LOAD

(CIRCUIT OF FIGURE 1)

MAX8553/4 toc13

VLX

5V/div

0

VOUT

20mV/div

AC-COUPLED

IL

10A/div

2µs/div

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