AIC2511-12PB5 데이터 시트보기 (PDF) - Analog Intergrations

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AIC2511-12PB5

3A STEP-DOWN PWM CONVERTER

Analog Intergrations 

AIC2511

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

1.6

1.6

1.5

1.5

1.4

1.3

1.2

3A

1.1

1.0

0.9

1A

0.8

0.7

0.6

-60 -40 -20 0 20 40 60 80 100 120 140

TJ (oC)

Fig.7 Dropout Voltage vs. Temperature

2.5

1.4

1.3

1.2

-40oC

25oC

1.1

100oC

1.0

0.9

0.8

0.7

0.6

0.5

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

Switch Current (A)

Fig.8 Switching Saturation Voltage vs. Switch Current

5.0

2.0

OFF

1.5

4.8

4.6

V =1.23V

FB

4.4

I =120mA

LOAD

4.2

4.0

3.8

1.0

ON

3.6

3.4

0.5

3.2

3.0

0.0

-60 -40 -20 0 20 40 60 80 100 120 140

TJ (oC)

Fig.9 ON/OFF Threshold Voltage vs. Temperature

2.8

-60 -40 -20 0 20 40 60 80 100 120 140

TJ (oC)

Fig.10 Minimum Operating Supply Voltage vs. Temperature

(ADJ only)

2.0

1.5

VIN=24V

-40oC<T <125oC

J

3A

IOUT

0.1A

1.0

0.5

0.0

0

5

10

15

20

25

ON/OFF Pin Voltage (Volt)

Fig.11 ON / OFF Pin Current (sinking) vs. Temperature

VOUT

100mV/div

VIN=12V

VOUT=5V

Fig.12 Load transient response

6

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