MAX1745EUB+ datasheet(6/15 Pages) MAXIM

Part #	MAX1745EUB+

Description	High-Voltage, Step-Down DC-DC Controllers in 關MAX

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Manufacturer	MAXIM [Maxim Integrated Products]

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High-Voltage, Step-Down DC-DC

Controllers in µMAX

6

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

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

REFERENCE OUTPUT VOLTAGE CHANGE

vs. TEMPERATURE

TEMPERATURE (

°C)

100

75

25

50

0

-25

-4

-3

-2

-1

0

1

2

3

4

5

-5

-50

125

VOUT

2V/div

SHUTDOWN

PULSE

5V/div

MAX1744

ENTERING/EXITING SHUTDOWN

MAX1744/5toc11

2ms/div

RL = 3.3

Ω

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

LOAD-TRANSIENT RESPONSE

A

B

50

μs/div

VOUT = 5V, LOAD CURRENT = 1A

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

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

LINE-TRANSIENT RESPONSE

A

B

4ms/div

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