
NCP2821
http://onsemi.com
6
TYPICAL CHARACTERISTICS
0
10
20
30
40
50
60
70
80
90
0
0.5
1.0
1.5
EFFICIENCY
%
Pout (W)
160
0
0.5
1.0
DIE
TEMPERA
TURE
(°
C)
Pout (W)
Vp = 5 V
RL = 4 W
NCP2821
Class AB
1.5
2.0
140
120
100
80
60
40
20
60
0
0.1
0.2
DIE
TEMPERA
TURE
(°
C)
Pout (W)
Vp = 3.6 V
RL = 8 W
NCP2821
Class AB
0.3
0.4
55
50
45
40
35
30
25
20
30
40
50
60
70
80
90
100
0
0.2
0.4
DIE
TEMPERA
TURE
(°
C)
Pout (W)
Vp = 5 V
RL = 8 W
NCP2821
Class AB
Figure 3. Efficiency vs. Pout
Vp = 5 V, RL = 8 W, f = 1 kHz
Figure 4. Die Temperature vs. Pout
Vp = 5 V, RL = 8 W, f = 1 kHz @ TA = +25°C
Figure 5. Efficiency vs. P out
Vp = 3.6 V, RL = 8 W, f = 1 kHz
Figure 6. Die Temperature vs. P out
Vp = 3.6 V, RL = 8 W, f = 1 kHz @ TA = +25°C
Figure 7. Die Temperature vs. Pout
Vp = 5 V, RL = 4 W, f = 1 kHz @ TA = +25°C
Figure 8. Efficiency vs. Pout
Vp = 5 V, RL = 4 W, f = 1 kHz
0
10
20
30
40
50
60
70
80
90
100
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
EFFICIENCY
(%)
Pout (W)
Vp = 3.6 V
RL = 8 W
NCP2821
Class AB
0
10
20
30
40
50
60
70
80
90
100
0
0.5
1.0
EFFICIENCY
(%)
Pout (W)
Vp = 5 V
RL = 8 W
NCP2821
Class AB
0.6
0.8
1.0
1.2
1.4
0.5
0.6
0.7
2.0
2.5
NCP2821
Vp = 5 V
RL = 4 W
Class AB