Datasheet

10 100 1000
OUTPUT CURRENT (mA)
EFFICIENCY (%)
50
55
60
65
70
75
80
85
90
When V
OUT
= 1.0V (typical), Small
PFET (960 m:). When V
OUT
= 1.05V
(typical), Large PFET (140 m:).
V
OUT
= 1.0V
V
OUT
= 1.05V
V
IN
= 5.5V
V
IN
= 3.6V
V
IN
= 2.7V
10 100 1000
OUTPUT CURRENT (mA)
EFFICIENCY (%)
40
45
50
55
60
65
70
75
80
85
90
V
IN
= 4.5V, V
OUT
= 1.05V
V
IN
= 4.5V, V
OUT
= 1.0V
When V
OUT
= 1.0V (typical), Small
PFET (960 m:). When V
OUT
= 1.05V
(typical), Large PFET (140 m:).
0
0 100 200 300 400 500 600 700
OUTPUT CURRENT (mA)
80
82
84
86
88
90
92
94
96
98
100
EFFICIENCY (%)
V
IN
= 4.5V
V
IN
= 3.9V
V
IN
= 5.5V
LM3208
SNVS404B –APRIL 2006–REVISED MARCH 2013 www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
(Circuit in Figure 35, PV
IN
= V
DD
= EN = 3.6V and T
A
= 25°C unless otherwise specified.).
Efficiency Efficiency
vs vs
Output Current Output Current
(V
OUT
= 0.8V) (V
OUT
= 3.6V)
Figure 15. Figure 16.
Efficiency Efficiency
vs vs
Output Current Output Current
(R
DSON
Management) (R
DSON
Management, V
IN
=4.5V)
Dark curves are efficiency profiles of either large PFET
or small PFET whichever is higher.
Figure 17. Figure 18.
R
DSON
vs
Temperature R
DSON
vs Temperature
(Large PFET, I
SW
= 200mA) (Small PFET, I
SW
= 200mA)
Figure 19. Figure 20.
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