AAT3167_07 ANALOGICTECH [Advanced Analogic Technologies], AAT3167_07 Datasheet - Page 5

• Manufacturer Part Number: AAT3167_07
• Description: High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

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