LP3907 Datasheet, PDF (13/58 Pages) National Semiconductor (TI) – Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C Compatible Interface

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7.13 Typical Characteristics — Buck1
V_IN= 2.8 V to 5.5 V, T_A = 25°C, V_OUT = 1.2 V, 2 V
100
90
80
70
60
50
40
30
20
10
0.1
V_OUT = 1.2 V
V_IN= 2.8V
V_IN= 3.6V
V_IN= 5.5V
1
10
100
OUTPUT CURRENT (mA)
L= 2.2 µH
1000
Figure 14. Efficiency vs Output Current (Forced PWM Mode)
100
90
80
V_IN = 2.8V
V_IN = 3.6V
70
V_IN = 5.5V
60
50
40
0.1
V_OUT = 1.2 V
1
10
100
OUTPUT CURRENT (mA)
L= 2.2 µH
1000
Figure 16. Efficiency vs Output Current (PWM-to-PFM Mode)
LP3907
SNVS511S – JUNE 2007 – REVISED APRIL 2016
100
90
80
70
60
50
40
30
20
10
0.1
V_OUT = 2V
V_IN = 2.8V
V_IN = 3.6V
V_IN = 5.5V
1
10
100
OUTPUT CURRENT (mA)
L= 2.2 µH
1000
Figure 15. Efficiency vs Output Current (Forced PWM Mode)
100
90
V_IN= 2.8V
80
V_IN= 3.6V
V_IN= 5.5V
70
60
50
40
0.1
V_OUT = 2 V
1
10
100
OUTPUT CURRENT (mA)
L= 2.2 µH
1000
Figure 17. Efficiency vs Output Current (PWM-to-PFM Mode)
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