Rainbow-electronics MAX8620 Manual de usuario descargar pdf (Pagina 6)

MAX8620Y

µPMIC for Microprocessors or DSPs

in Portable Equipment

6 _______________________________________________________________________________________

OUT1/OUT2 VOLTAGE vs. INPUT VOLTAGE

MAX8620Y toc13

INPUT VOLTAGE (V)

OUTPUT VOLTAGE (V)

5.04.54.03.5

2.35

2.40

2.45

2.50

2.55

2.60

2.65

2.70

2.75

2.80

2.30

3.0 5.5

LOAD

= 0mA

LOAD

= 300mA

DROPOUT VOLTAGE vs. LOAD CURRENT

LOAD CURRENT (mA)

DROPOUT VOLTAGE (mV)

25020050 100 150

100

150

200

250

300

350

400

0 300

MAX8620Y toc14

OUT_

= 3V

OUT1/OUT2 LOAD REGULATION vs. LOAD CURRENT

MAX8620Y toc15

LOAD CURRENT (mA)

LOAD REGULATION (%)

25020015010050

-1.3

-1.1

-0.9

-0.7

-0.5

-0.3

-0.1

-1.5

0 300

OUT1/OUT2 POWER-SUPPLY

RIPPLE REJECTION vs. FREQUENCY

MAX8620Y toc16

FREQUENCY (kHz)

POWER-SUPPLY RIPPLE REJECTION (dB)

100101

0.1 1000

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.)

1 2 3 4 5 6 7 8 9 10 11 ... 17 18

MAX8620Y 1

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Rainbow-electronics MAX8620 Manual de usuario Pagina 6

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