AAT2820 Datasheet, PDF (5/18 Pages) Advanced Analogic Technologies – Triple-Output Charge Pump Regulator

AAT2820
Triple-Output Charge Pump Regulator
Typical Characteristics
V_IN = 3.3V, V_OUT = 5V, V_POS = 12.5V, V_NEG = -7.8V, C_IN = C_FLY = 1µF, C_OUT = 4.7µF; T_A = 25°C, unless otherwise noted.
5V Output vs. Output Current
5.2
V_IN = 4.2V
5.0
4.8
V_IN = 3.3V
4.6
V_IN = 2.7V
4.4
4.2
0
V_IN = 3.0V
50
100
150
200
250
300
Output Current (mA)
5V Output Efficiency vs. Output Current
(No-Load at V_POS and V_NEG)
100
90
80
70
60
50
40
30
20
10
0
0.1
V_IN = 3.0V
V_IN = 2.7V
V_IN = 3.3V
V_IN = 4.2V
1.0
10
100
1000
Output Current (mA)
5V Output Voltage vs. Temperature
(No-Load at V_POS and V_NEG)
5.02
5.00
V_IN = 4.2V
4.98
4.96
4.94
V_IN = 2.7V V_IN = 3.3V
4.92
4.90
-40
-20
0
20
40
60
Temperature (°C)
80
100
5V Output Efficiency vs. Output Current
(V_OUT = 5V; V_POS = 12.5V @ 10mA; V_NEG = -7.8V @ 5mA)
70
60
50 _{VIN = 2.7V}
40
30
20
V_IN = 3.3V
V_IN = 4.2V
10
0
0
20
40
60
80
100 120 140 160
Output Current (mA)
Switching Frequency vs. Temperature
930
920
910
900
890
880
870
860
850
840
-40
-20
0
20
40
60
Temperature (°C)
80
100
2820.2006.04.1.4
Operating Current vs. Temperature
5.7
5.6
5.5
5.4
5.3
5.2
5.1
5.0
4.9
-40
-20
0
20
40
60
Temperature (°C)
80
100
5