Datasheet

120
130
140
150
-40
0
40
80
120
I
COMP
(PA)
Temperature (
R
C)
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10
LM3477
LM3477A
LOAD (A)
EFFICIENCY (%)
LM3477
LM3477A
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10
LOAD (A)
EFFICIENCY (%)
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10
LM3477
LM3477A
LOAD (A)
EFFICIENCY (%)
LM3477
www.ti.com SNVS141K –OCTOBER 2000–REVISED MARCH 2013
Typical Performance Characteristics (continued)
Unless otherwise specified, V
IN
= 12V, T
J
= 25°C.
Efficiency vs Load Current (V
IN
= 24V, V
OUT
= 12V) Efficiency vs Load Current (V
IN
= 5V,
OUT
= 3.3V)
Figure 9. Figure 10.
Efficiency vs Load Current (V
IN
= 12V, V
OUT
= 3.3V) Error Amplifier Gain
Figure 11. Figure 12.
Error Amplifier Phase Shift COMP Pin Source Current vs Temperature
Figure 13. Figure 14.
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