MAX1744 查看數據表（PDF） - Maxim Integrated

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MAX1744

High-Voltage / Step-Down DC-DC Controller in MAX

Maxim Integrated 

High-Voltage, Step-Down DC-DC

Controllers in µMAX

Typical Operating Characteristics (continued)

(Circuit of Figure 1, TA = +25°C, unless otherwise specified.)

REFERENCE OUTPUT VOLTAGE CHANGE

vs. TEMPERATURE

5

4

3

2

1

0

-1

-2

-3

-4

-5

-50 -25

0 25 50 75 100 125

TEMPERATURE (°C)

MAX1744

ENTERING/EXITING SHUTDOWN

MAX1744/5toc11

RL = 3.3Ω

VOUT

2V/div

SHUTDOWN

PULSE

5V/div

2ms/div

LOAD-TRANSIENT RESPONSE

LINE-TRANSIENT RESPONSE

A

A

B

50μs/div

VIN = 7.2V, VOUT = 3.3V, LOAD CURRENT = 0.1A TO 2A

A: VOUT, 50mV/div, 3.3V AC-COUPLED

B: LOAD CURRENT, 1A/div

B

4ms/div

VOUT = 5V, LOAD CURRENT = 1A

A: VOUT, 100mV/div, AC-COUPLED

B: VIN, 6V TO 12V, 5V/div

6 _______________________________________________________________________________________

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