MAX8792 查看數據表（PDF） - Maxim Integrated

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MAX8792

Single Quick-PWM Step-Down Controller with Dynamic REFIN

Maxim Integrated 

Single Quick-PWM Step-Down

Controller with Dynamic REFIN

Typical Operating Characteristics (continued)

(MAX8792 Circuit of Figure 1, VIN = 12V, VDD = 5V, SKIP = GND, RTON = 200kΩ, TA = +25°C, unless otherwise noted.)

OUTPUT OVERLOAD WAVEFORM

(UVP ENABLED)

MAX8792 toc22

OUTPUT OVERVOLTAGE WAVEFORM

MAX8792 toc23

14A

A

0

1.5V

B

0

5V

C

0

5V

D

0

200μs/div

A. INDUCTOR CURRENT,

10A/div

B. VOUT, 1V/div

C. DL, 5V/div

D. PGOOD, 5V/div

1.5V

A

0

5V

B

0

5V

C

0

A. VOUT, 1V/div

B. DL, 5V/div

100μs/div

C. PGOOD, 5V/div

DYNAMIC OUTPUT-VOLTAGE TRANSITION

(PWM MODE)

MAX8792 toc24

1.5V

A

1.05V

1.5V

B

1.05V

0

C

-10A

12V

D

0

20μs/div

A. REFIN, 500mV/div

B. VOUT, 200mV/div

C. INDUCTOR CURRENT,

10A/div

D. LX, 10V/div

DYNAMIC OUTPUT-VOLTAGE TRANSITION

(SKIP MODE)

MAX8792 toc25

1.5V

A

1.05V

1.5V

B

1.05V

10A

0

C

12V

D

0

100μs/div

A. REFIN, 500mV/div C. INDUCTOR CURRENT,

B. VOUT, 200mV/div

10A/div

D. LX, 10V/div

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