Datasheet
2.5 3.0 3.5 4.0 4.5 5.0 5.5
2.4
2.6
2.8
3.0
3.2
3.4
3.6
OUTPUT VOLTAGE (V)
INPUT VOLTAGE (V)
DROPOUT
I
OUT
= 1.5A
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
OUTPUT VOLTAGE (V)
VCON (V)
2.5X GAIN
0 200 400 600 800 1000
70
75
80
85
90
95
100
EFFICIENCY (%)
LOAD CURRENT (mA)
VOUT = 1.6V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
900 1200 1500 1800 2100 2400 2700
20
30
40
50
60
70
80
90
100
EFFICIENCY (%)
LOAD CURRENT (mA)
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
0 20 40 60 80 100 120 140 160
60
65
70
75
80
85
90
95
100
EFFICIENCY (%)
LOAD CURRENT (mA)
VOUT = 1.0V
VOUT = 1.5V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
0 100 200 300 400 500 600 700 800
60
65
70
75
80
85
90
95
100
EFFICENCY (%)
LOAD CURRENT (mA)
VOUT = 1.6V
VOUT = 2.0V
VOUT = 2.5V
VOUT = 3.0V
VOUT = 3.5V
LM3243
www.ti.com
SNVS782B –OCTOBER 2010–REVISED FEBRUARY 2013
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs. Load Current Efficiency vs. Load Current
V
IN
= 3.8V, I
OUT
= 10mA to 150mA V
IN
= 3.8V, I
OUT
= 150mA to 750mA
Figure 1. Figure 2.
Efficiency vs. Load Current Efficiency vs. Load Current
V
IN
= 3.8V, I
OUT
= 100mA to 1A V
IN
= 3.8V, I
OUT
= 1A to 2.5A
Figure 3. Figure 4.
Output Voltage vs. Supply Voltage Output Voltage vs. VCON Voltage
V
OUT
= 3.4V, V
IN
= 4.3V down to dropout V
IN
= 4.2V, R
LOAD
= 6.8Ω, 0.16V < VCON < 1.4V
Figure 5. Figure 6.
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