ADUM3070 AD [Analog Devices], ADUM3070 Datasheet - Page 10

• Manufacturer Part Number: ADUM3070
• Description: Isolated Switching Regulator
• Manufacturer: AD [Analog Devices]

ADuM3070
Figure 11. 5 V In to 15 V Out Efficiency at Various Switching Frequencies with
Figure 12. 5 V In to 15 V Out Efficiency at Various Switching Frequencies with
Figure 10. Typical Efficiency at 3.3 V In to 5 V Out over Temperature with
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
0
0
0
1:3 Halo Transformer (TGSAD-290V6LF) at 500 kHz f
10
10 20 30 40 50 60 70 80 90 100 110 120 130
20
1:3 Halo Transformer (TGSAD-290V6LF)
50
1:3 Coilcraft Transformer (JA4650-BL)
30
40
100
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
50
60
150
70
80
90 100 110 120 130
200
f
f
f
f
f
f
f
f
T
T
T
SW
SW
SW
SW
SW
SW
SW
SW
A
A
A
250
= –40°C
= +25°C
= +105°C
= 1MHz
= 700kHz
= 500kHz
= 200kHz
= 1MHz
= 700kHz
= 500kHz
= 200kHz
SW
300
140
140
Rev. 0 | Page 10 of 20
Figure 14. Double-Supply Efficiency with 1:5 Coilcraft Transformer (KA4976-AL)
Figure 13. 5 V In to 15 V Out Efficiency over Temperature with 1:3 Coilcraft
90
80
70
60
50
40
30
20
10
80
70
60
50
40
30
20
10
0
0
6
5
4
3
2
1
0
0
0
0
Figure 15. Typical V
10 20 30 40 50 60 70 80 90 100 110 120 130
5
10 mA, 50 mA, and 500 mA Output Load
Transformer (JA4650-BL) at 500 kHz f
10
5
15
20
LOAD CURRENT (mA)
10
LOAD CURRENT (mA)
25
ISO
at 500 kHz f
Startup at 5 V In to 5 V Out with
30
TIME (ms)
35
15
40
SW
45
20
5V IN TO 12V OUT
5V IN TO 15V OUT
50
LOAD = 10mA
LOAD = 50mA
LOAD = 500mA
T
T
T
Data Sheet
55
SW
A
A
A
= –40°C
= +25°C
= +105°C
25
60
65
140
70
30