AAT3152
High Efficiency 1X/1.5X/2X Charge Pump
For White LED Applications
Typical Characteristics
Load Characteristics
(V
IN
= 3.7V; 1.5X Mode; 14mA Load)
Load Characteristics
(V
IN
= 2.7V; 2X Mode; 14mA Load)
V
IN
(40mV/div)
CP
(40mV/div)
V
IN
(40mV/div)
CP
(40mV/div)
V
SINK
(40mV/div)
V
SINK
(40mV/div)
500ns/div
500ns/div
Load Characteristics
(V
IN
= 3.9V; 1.5X Mode; 20mA Load)
Load Characteristics
(V
IN
= 2.9V; 2X Mode; 20mA Load)
V
IN
(40mV/div)
CP
(40mV/div)
V
IN
(40mV/div)
CP
(40mV/div)
V
SINK
(40mV/div)
V
SINK
(40mV/div)
500ns/div
500ns/div
T
LAT
vs. V
IN
350
300
250
400
350
T
OFF
vs. V
IN
-40°C
T
OFF
(µs)
µ
300
250
200
150
100
50
0
-40°C
T
LAT
(µs)
µ
200
150
100
50
0
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 5.3 5.5
25°C
85°C
25°C
85°C
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 5.3 5.5
V
IN
(V)
V
IN
(V)
6
3152.2005.08.1.2
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
