AAT2860 Datasheet, PDF (9/23 Pages) Advanced Analogic Technologies – Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit

PRODUCT DATASHEET
AAT2860
ChargePump^TM Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit
Typical Characteristics
Operating Characteristic
(30mA/Channel Backlight; 2x Mode; V_IN = 3.2V; C_OUT = 2.2µF)
20
10
0
20
10
0
-10
-20
Time (500ns/div)
LDOs A/B/C Load Regulation
(V_IN = 3.6V)
1.5
VLDO = 3.0V
1.0
VLDO = 1.5V
0.5
0.0
-0.5
-1.0
-1.5
0.1
1
10
100
1000
Load Current (mA)
LDO Output Voltage vs Temperature
(V_IN = 3.6V; I_LDO = 0mA)
1.5
VLDO = 3.0V
1
VLDO = 1.5V
0.5
0
-0.5
-1
-1.5
-40
-15
10
35
60
85
Temperature (°C)
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
2.7
LDOs A/B/C Line Regulation
(I_LDO = 10mA)
VLDO = 3.0V
VLDO = 1.5V
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
LDOs A/B/C Load Transient Response
(I_LDO = 10mA to 200mA; V_IN = 3.6V; V_LDO = 1.8V; C_LDO = 2.2µF)
200
100
0
2.00
1.90
1.80
1.70
1.60
Time (20µs/div)
LDOs A/B/C Line Transient Response
(V_IN = 3.6V to 4.2V; I_LDO = 10mA; V_LDO = 1.8V; C_LDO = 2.2µF)
4.4
4.0
3.6
1.82
1.81
1.80
1.79
1.78
Time (1ms/div)
2860.2008.05.1.0
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