Rainbow-electronics MAX1837 Manual de usuario descargar pdf (Pagina 6)

MAX1836/MAX1837

24V Internal Switch, 100% Duty Cycle,

Step-Down Converters

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(Circuits of Figures 1 (MAX1836) and 2 (MAX1837), V

= 12V, SHDN = IN, T

= +25°C.)

100µs/div

MAX1837EUT50

LOAD TRANSIENT

A: I

OUT

= 10mA to 250mA, 200mA/div

B: V

OUT

= 5V, 20mV/div

C: I

, 500mA/div

= 12V, FIGURE 6

400mA

200mA

5.02V

MAX1836/7 toc14

5.00V

4.98V

750mA

250mA

400

µs/div

MAX1837EUT50

LINE TRANSIENT

A: V

= 9V to 18V, 10V/div

B: V

OUT

= 5V, R

OUT

= 100Ω, 100mV/div

C: I

, 500mA/div

FIGURE 6

20V

10V

5.1V

MAX1836/7 toc15

5.0V

4.9V

500mA

400

µs/div

MAX1837EUT50

LINE TRANSIENT NEAR DROPOUT

A: V

= 5V to 12V, 5V/div

B: V

OUT

= 5V, R

OUT

= 100Ω, 100mV/div

C: I

, 500mA/div

FIGURE 6

15V

10V

5.1V

MAX1836/7 toc16

5.0V

4.9V

500mA

200

µs/div

MAX1837EUT50

STARTUP WAVEFORM

A: V

SHDN

= 0 to 2V, 2V/div

B: V

OUT

= 5V, R

OUT

= 100Ω, 2V/div

C: I

, 500mA/div

= 12V,

FIGURE 6

MAX1836/7 toc17

500mA

1 2 3 4 5 6 7 8 9 10 11 12 13

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Rainbow-electronics MAX1837 Manual de usuario Pagina 6

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