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AAT3167 Datasheet(PDF) 5 Page - Advanced Analog Technology, Inc.

Part No. AAT3167
Description  High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
Download  14 Pages
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Maker  AAT [Advanced Analog Technology, Inc.]
Homepage  http://www.aatech.com.tw
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AAT3167 Datasheet(HTML) 5 Page - Advanced Analog Technology, Inc.

 
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Typical Characteristics
CIN = COUT = C1 = C2 = 1.0µF; TA = 25°C, VIN = 3.6V, unless otherwise noted.
Current Matching vs. Temperature
Temperature (
°°C)
17.0
17.2
17.4
17.6
17.8
18.0
18.2
18.4
18.6
18.8
19.0
-40
-20
0
20
40
60
80
Channel 1
Channel 4
Channel 2
Channel 3
Channel 5
Turn-Off from 1.5X Mode
(VIN = 3.5V; 18mA Load)
Time (100µs/div)
EN
(2V/div)
IIN
(100mA/div)
VF
(1V/div)
Turn-On to 2X Mode
(VIN = 2.8V; 18mA Load)
Time (100µs/div)
EN
(2V/div)
OUT
(2V/div)
IIN
(200mA/div)
VSINK
(500mV/div)
Turn-On to 1.5X Mode
(VIN = 3.5V; 18mA Load)
Time (100µs/div)
EN
(2V/div)
OUT
(2V/div)
IIN
(200mA/div)
VSINK
(500mV/div)
Turn-On to 1X Mode
(VIN = 4.2V; 18mA Load)
Time (100µs/div)
EN
(2V/div)
OUT
(2V/div)
IIN
(200mA/div)
VSINK
(500mV/div)
Efficiency vs. Supply Voltage
Supply Voltage (V)
0
10
20
30
40
50
60
70
80
90
100
2.5 2.8 3.0 3.3 3.5 3.8 4.0 4.3 4.5 4.8 5.0 5.3 5.5
18mA
VF = 3.4V
5.1mA
VF = 3.0V
350μA
VF = 2.7V
AAT3167
High Efficiency 1X/1.5X/2X Charge
Pump for White LED Applications
3167.2007.03.1.4
5


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