AAT3131 datasheet(5/14 Pages) AAT

Part #	AAT3131

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

PDF	14 Pages

Scroll/Zoom	100%

Manufacturer	AAT [Advanced Analog Technology, Inc.]

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

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5 / 14 page

AAT3131

High Efficiency 1X/1.5X Fractional

Charge Pump for White LED Applications

3131.2005.12.1.2

Typical Characteristics

Unless otherwise noted, V

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

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

VIN (V)

VIH

VIL

Quiescent Current vs. Input Voltage

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

2.50

3.00

3.50

4.00

4.50

5.00

5.50

Input Voltage (V)

VDIODE = 3.3V

VDIODE = 3.4V

VDIODE = 3.5V

VDIODE = 3.6V

DIODE vs. Input Voltage

(4x20mA)

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

Input Voltage (V)

VDIODE = 3.3V

VDIODE = 3.4V VDIODE = 3.5V

VDIODE = 3.6V

Efficiency vs. Input Voltage

(4x20mA)

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

Input Voltage (V)

VDIODE = 3.3V

VDIODE = 3.4V

VDIODE = 3.5V

VDIODE = 3.6V

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