AAT3123 datasheet(5/18 Pages) ANALOGICTECH

Part #	AAT3123

Description	High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications

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Manufacturer	ANALOGICTECH [Advanced Analogic Technologies]

Direct Link	http://www.analogictech.com

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AAT3123/23A/24

High Efficiency 1X/1.5X Fractional Charge

Pump for White LED Applications

3123.2005.12.1.4

5

Typical Characteristics

Unless otherwise noted, V

IN = 3.5V, CIN = COUT = C1 = C2 = 1µF, TA = 25°C.

V

IH and VIL vs. VIN

0.600

0.625

0.650

0.675

0.700

0.725

0.750

0.775

0.800

0.825

0.850

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Input Voltage (V)

VIH

VIL

Quiescent Current vs. Input Voltage

Input Voltage (V)

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.6

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

VDIODE = 3.0V

VDIODE = 3.2V

VDIODE = 3.4V

I

DIODE vs. Input Voltage

(4x10mA)

Input Voltage (V)

35

40

45

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

VDIODE = 3.0V

VDIODE = 3.2V

VDIODE = 3.4V

I

DIODE vs. Input Voltage

(4x20mA)

Input Voltage (V)

60

65

70

75

80

85

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

VDIODE = 3.0V

VDIODE = 3.2V

VDIODE = 3.4V

Efficiency vs. Input Voltage

(4x10mA)

Input Voltage (V)

50

55

60

65

70

75

80

85

90

95

100

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

VDIODE = 3.2V

VDIODE = 3.4V

VDIODE = 3.0V

Efficiency vs. Input Voltage

(4x20mA)

Input Voltage (V)

50

55

60

65

70

75

80

85

90

95

100

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

VDIODE = 3.0V

VDIODE = 3.2V

VDIODE = 3.4V

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