Rainbow-electronics MAX1686H Manual do Utilizador descarregar pdf (Página 4)

MAX1686/MAX1686H

3V to 5V Regulating

Charge Pumps for SIM Cards

4 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(See

Typical Operating Circuit

, C

= 0.47µF, C

= 0.22µF, C

OUT

= 10µF, V

= 3.3V, T

= +25°C, unless otherwise noted.)

25µs/div

OUTPUT WAVEFORM

LOAD

= 1mA)

MAX1686-10

OUT

(20mV/div)

5V MODE, AC COUPLED,

OUT

= 10µF  0.1µF

2.5ms/div

LINE-TRANSIENT RESPONSE

MAX1686-11

(500mV/div)

= 2.8V to 3.3V, I

LOAD

= 10mA, 5V MODE,

AC COUPLED

OUT

(50mV/div)

2.5ms/div

LOAD-TRANSIENT RESPONSE

MAX1686-12

LOAD

(10mA/div)

LOAD

= 0 TO 10mA, 5V MODE, AC COUPLED

OUT

(50mV/div)

250µs/div

START-UP WAVEFORM

(3V MODE, R

= 500Ω)

MAX1686-13

SHDN

(5V/div)

OUT

(1V/div)

1ms/div

SHUTDOWN WAVEFORM

(3V MODE, NO LOAD)

MAX1686-16

SHDN

(5V/div)

OUT

(1V/div)

= 500Ω

250µs/div

START-UP WAVEFORM

(5V MODE, R

= 500Ω)

MAX1686-14

SHDN

(5V/div)

OUT

(1V/div)

250µs/div

3V MODE TO 5V MODE

WAVEFORM (R

= 500Ω)

MAX1686-15

3/5

(5V/div)

OUT

(1V/div)

1ms/div

SHUTDOWN WAVEFORM

(5V MODE, NO LOAD)

MAX1686-17

SHDN

(5V/div)

OUT

(1V/div)

500µs/div

5V MODE TO 3V MODE

WAVEFORM (NO LOAD)

MAX1686-18

3/5

(5V/div)

OUT

(1V/div)

1 2 3 4 5 6 7 8

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