ADUM3070 AD [Analog Devices], ADUM3070 Datasheet - Page 9

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

Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 5. Typical Efficiency at 5 V In to 5 V Out at Various Switching
Figure 6. Typical Efficiency at 5 V In to 5 V Out at Various Switching
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
Frequencies with 1:2 Halo Transformer (TGSAD-260V6LF)
0
0
0
Frequencies with 1:2 Coilcraft Transformer (JA4631-BL)
Figure 4. Switching Frequency (f
50
50
50
100
100
100
150
150
150
LOAD CURRENT (mA)
LOAD CURRENT (mA)
200
200
200
R
OC
250
250
250
(Ω)
300
300
300
SW
) vs. R
350
350
350
OC
Resistance
f
f
f
f
f
f
f
f
400
400
400
SW
SW
SW
SW
SW
SW
SW
SW
= 1MHz
= 700kHz
= 500kHz
= 200kHz
= 1MHz
= 700kHz
= 500kHz
= 200kHz
450
450
450
500
500
500
Rev. 0 | Page 9 of 20
Figure 8. Single-Supply Efficiency with 1:2 Coilcraft Transformer (JA4631-BL)
Figure 7. 5 V In to 5 V Out Efficiency over Temperature with 1:2 Coilcraft
Figure 9. Typical Efficiency at 3.3 V In to 5 V Out at Various Switching
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
80
70
60
50
40
30
20
10
0
0
0
Frequencies with 1:3 Halo Transformer (TGSAD-290V6LF)
0
0
0
50
50
Transformer (JA4631-BL) at 500 kHz f
50
100
100
150
150
100
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
at 500 kHz f
200
200
250
250
150
SW
300
300
200
5V IN TO 5V OUT
5V IN TO 3.3V OUT
3.3V IN TO 3.3V OUT
350
350
f
f
f
f
T
T
T
400
400
SW
SW
SW
SW
SW
A
A
A
ADuM3070
250
= –40°C
= +25°C
= +105°C
= 1MHz
= 700kHz
= 500kHz
= 200kHz
450
450
500
500
300