PRODUCT DATASHEET
AAT3159
ChargePump
TM
High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
Typical Characteristics
V
IN
= 3.6V; C
IN
= C
OUT
= C1 = C2 = 1.0μF; T
A
= -40°C to +85°C, unless otherwise noted.
T
A
= 25°C.
Typical values are
Operating Characteristics
(V
IN
= 3.7V; 1.5X Mode;
20mA/Channel Load; AC Coupled)
V
IN
(20mV/div)
V
OUT
(40mV/div)
V
DX
(20mV/div)
V
IN
(20mV/div)
V
OUT
(40mV/div)
V
DX
(20mV/div)
Operating Characteristics
(V
IN
= 3.5V; 1.5X Mode;
14mA/Channel Load; AC Coupled)
Time (500ns/div)
Time (500ns/div)
Operating Characteristics
(V
IN
= 2.9V; 2X Mode;
20mA/Channel Load; AC Coupled)
V
IN
(20mV/div)
V
OUT
(40mV/div)
V
DX
(40mV/div)
V
IN
(20mV/div)
V
OUT
(40mV/div)
V
DX
(40mV/div)
Operating Characteristics
(V
IN
= 2.9V; 2X Mode;
14mA/Channel Load; AC Coupled)
Time (500ns/div)
Time (500ns/div)
Input Ripple vs. Input Voltage
14.0
12.0
20mA/channel
14mA/channel
Input Ripple (mV)
10.0
8.0
6.0
4.0
2.0
0.0
2.7
10mA/
channel
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
6
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3159.2007.10.1.0
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