AAT3141(2007) Ver la hoja de datos (PDF) - Advanced Analogic Technologies

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AAT3141
(Rev.:2007)

High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

Advanced Analogic Technologies 

AAT3141

High Efficiency 1X/1.5X/2X Charge Pump

for White LED Applications

Typical Characteristics

Unless otherwise noted, VIN = 3.5V, CIN = CCP = C1 = C2 = 1µF, TA = 25°C.

Efficiency vs. Input Voltage

(Code 26)

100

Efficiency vs. Input Voltage

(D1 = 3.5V; D2 = 3.3V; D3 = 3.2V; D4 = 3.0V)

100

90

80

3.0VF

90

Code 26

80

70

70

60

60

50

3.5VF

50

Code 28 Code 32

40

40

30

2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2

30

2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2

Input Voltage (V)

Input Voltage (V)

Efficiency vs. Input Voltage

(D1-D2 = 3.5V; D3-D4 = 3.2V)

100

90

Code 26

80

70

60

50

40

Code 28 Code 32

30

2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2

Input Voltage (V)

3141.2007.03.1.3

5

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