AIC1577 datasheet(5/14 Pages) AIC

Part #	AIC1577

Description	External NMOS Step-Down PWM Controller

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Manufacturer	AIC [Analog Intergrations Corporation]

Direct Link	http://www.analog.com.tw

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AIC1577

TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

Input Voltage (V)

Fig. 3 Efficiency vs Input Voltage

0

5

10

15

20

25

30

70

75

80

85

90

95

100

VOUT=3.3V

ILOAD=1A

ILOAD=0.1

A

Input Voltage (V)

Fig. 4 Efficiency vs Input Voltage

0

5

10

15

20

25

30

70

75

80

85

90

95

100

VOUT=5V

ILOAD=1A

ILOAD=0.1A

Input Voltage (V)

Fig. 5 Supply Current vs Input Voltage

0

5

10

15

20

25

30

0

20

40

500

600

700

800

900

Normal Mode

Shutdown

Boost Load Current (mA)

Fig. 6 Boost Load Regulation

0

VCC=5V

VCC=15V

VPHASE=0V

0

510

15

20

1

2

3

4

5

6

7

Input Voltage (V)

Fig. 7 Boost Line Regulation

IBOOST=2mA

VPHASE=0V

0

5

10

15

20

25

30

1

3

5

7

0

2

4

6

VCC DOWN

VCC UP

Temperature (

°C)

Fig. 8 Reference Voltage vs Temperature

-40

-20

0

20

40

60

80

100

120

140

0.790

0.791

0.792

0.793

0.794

0.795

0.796

0.797

0.798

0.799

0.800

0.801

0.802

0.803

0.804

0.805

5

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AIC1577 Datasheet(PDF) 5 Page - Analog Intergrations Corporation

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