Rainbow-electronics MAX8620 Manual de usuario descargar pdf (Pagina 5)

MAX8620Y

µPMIC for Microprocessors or DSPs

in Portable Equipment

_______________________________________________________________________________________ 5

Typical Operating Characteristics (continued)

IN1

= V

IN2

= 3.7V, PWR_ON = IN1, L = 2.2µH (LQH31CN2R2M53), C

= 150pF, V

OUT1

= V

OUT2

= 2.6V, V

OUT3

= 1.867V (R1 =

150kΩ, R2 = 75kΩ), C

= 10µF, C

= 0.01µF, C

OUT1

= C

OUT2

= 4.7µF, C

OUT3

= 2.2µF, RESET pulled up with 100kΩ to OUT1,

= +25°C, unless otherwise noted.)

LOAD TRANSIENT (50mA TO 300mA)

MAX8620Y toc07

2µs/div

LOAD

OUT3

AC-COUPLED

50mV/div

200mA/div

300mA

50mA

200mA/div

POWER-UP WAVEFORMS

MAX8620Y toc08

40µs/div

OUT3

OUT1

OUT2

2V/div

1V/div

PWR_ON STARTUP/SHUTDOWN WAVEFORMS

MAX8620Y toc09

100µs/div

OUT3

OUT1

OUT2

PWR_ON

2V/div

1V/div

RESET WAVEFORMS

MAX8620Y toc10

10ms/div

OUT1

PWR_ON

2V/div

1V/div

RESET

OUT2 SHUTDOWN WAVEFORMS

MAX8620Y toc11

200µs/div

OUT2

EN2

1V/div

HF_PWR STARTUP WAVEFORMS

MAX8620Y toc12

10ms/div

OUT1

HF_PWR

1V/div

2V/div

1V/div

RESET

1 2 3 4 5 6 7 8 9 10 ... 17 18

MAX8620Y 1

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Rainbow-electronics MAX8620 Manual de usuario Pagina 5

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