MAX8550(2004) Ver la hoja de datos (PDF) - Maxim Integrated

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MAX8550
(Rev.:2004)

Integrated DDR Power-Supply Solutions for Desktops, Notebooks, and Graphic Cards

Maxim Integrated 

Integrated DDR Power-Supply Solutions for

Desktops, Notebooks, and Graphic Cards

Typical Operating Characteristics (continued)

(VVIN = 12V, VOUT = 2.5V, TON = GND, SKIP = AVDD, circuit of Figure 8, TA = +25°C, unless otherwise noted.)

OVERVOLTAGE AND TURN-OFF

OF BUCK OUTPUT

MAX8550/51 toc18

0A

IL

25A/div

0V

0V

0V

20µs/div

VOUT

2V/div

DH

20V/div

DL

5V/div

SHORT CIRCUIT AND

RECOVERY OF VDDQ

MAX8550/51 toc19

UVP DISABLED, FOLDBACK CURRENT LIMIT

VOUT

2V/div

0V

ILOAD

10A/div

0A

VIN

10V/div

0V

0A

400µs/div

IIN

2A/div

SHORT CIRCUIT AND

RECOVERY OF VDDQ

MAX8550/51 toc20

UVP ENABLED

VOUT

2V/div

0V

ILOAD

10A/div

0A

VIN

10V/div

0V

0A

400µs/div

IIN

2A/div

SHORT CIRCUIT OF VTT

MAX8550/51 toc21

VTT

1V/div

0V

0A

400µs/div

IVTT

5A/div

8 _______________________________________________________________________________________

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