Datasheet
0.10
1.00 10.00 100.00 1000.00
LOAD (mA)
0
10
20
30
40
50
60
70
80
90
100
EFFICIENCY
(%)
5.5V
4.5V
0.10
1.00 10.00 100.00 1000.00
LOAD (mA)
0
10
20
30
40
50
60
70
80
90
100
EFFICIENCY
(%)
4.5V
5.5V
LM3370
SNVS406N –NOVEMBER 2005–REVISED MAY 2013
www.ti.com
Typical Performance Characteristics (continued)
LM3370, Circuit of Typical Application Circuit, V
IN
= 3.6V, V
OUT1
= 1.5V and V
OUT2
= 2.5V, L = 2.2 µH (NR3015T2R2M), C
IN
=
4.7 µF (0805) and C
OUT
= 10 µF (0805) and T
A
= 25°C, unless otherwise noted.
Efficiency Efficiency
vs. vs.
Output Current Output Current
Auto Mode, V
OUT1
= 1.5V Auto Mode, V
OUT2
= 1.9V
Figure 15. Figure 16.
Efficiency Efficiency
vs. vs.
Output Current Output Current
Auto Mode, V
OUT2
= 3.3V Forced PWM Mode, V
OUT2
= 3.3V
Figure 17. Figure 18.
Typical Operation Waveform Typical Operation Waveform
V
IN
= 3.6V, V
OUT1
= 1.8V and V
OUT2
= 1.8V V
IN
= 4.8V, V
OUT1
= 1V and V
OUT2
= 3.3V
Load = 400 mA Load = 400 mA
Figure 19. Figure 20.
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