AAT3152_05 ANALOGICTECH [Advanced Analogic Technologies], AAT3152_05 Datasheet - Page 5

• Manufacturer Part Number: AAT3152_05
• Description: High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Typical Characteristics
(200mA/div)
(100mA/div)
3152.2005.08.1.2
(500mV/div)
(2V/div)
(2V/div)
(2V/div)
(1V/div)
100
90
80
70
60
50
V
2.8
SINK
EN
CP
EN
V
I
I
IN
IN
F
Efficiency vs. Supply Voltage
3.0
Turn-Off from 1.5X Mode
3.2
Turn-On to 1.5X Mode
Supply Voltage (V)
(V
(V
IN
IN
V
= 3.5V; 20mA Load)
= 3.5V; 20mA Load)
3.4
F
10mA
= 3.1V
100µ µ s/div
500µ µ s/div
3.6
V
F
20mA
= 3.4V
3.8
4.0
High Efficiency 1X/1.5X/2X Charge Pump
4.2
(200mA/div)
(200mA/div)
(500mV/div)
(500mV/div)
20.4
20.2
20.0
19.8
19.6
19.4
19.2
19.0
(2V/div)
(2V/div)
(2V/div)
(2V/div)
-40
V
V
SINK
SINK
Channel 4
EN
CP
EN
CP
Channel 2
I
I
IN
IN
Current Matching vs. Temperature
For White LED Applications
-20
0
Turn-On to 1X Mode
Turn-On to 2X Mode
(V
(V
Temperature (° ° C)
IN
IN
Channel 3
= 4.2V; 20mA Load)
= 2.8V; 20mA Load)
20
100µ µ s/div
100µ µ s/div
40
Channel 1
AAT3152
60
80
5