ADP1879 데이터 시트보기 (PDF) - Analog Devices
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ADP1879 Datasheet PDF : 40 Pages
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ADP1878/ADP1879
100
95
90
85
80
75
70
65 VIN = 13V (PSM)
60
55
50
45
40
35
30
25
VIN = 16.5V (PSM)
20
15
10
5
0
10
100
VIN = 13V
VIN = 16.5V
TA = 25°C
fVSOWUT=
= 0.8V
1.0MHz
WÜRTH INDUCTOR:
744303012, L = 0.12µH, DCR = 0.33mΩ
INFINEON FETs:
BSC042N03MS G (UPPER/LOWER)
1k
10k
LOAD CURRENT (mA)
100k
Figure 10. Efficiency—1.0 MHz, VOUT = 0.8 V
100
95
90
85
80
75
VIN = 13V (PSM)
70
65
60
55
50
45
40
35
VIN = 16.5V (PSM)
30
25
20
15
10
5
0
10
100
VIN = 13V
VIN = 16.5V
TA = 25°C
fVSOWUT=
= 1.8V
1.0MHz
WÜRTH INDUCTOR:
744303022, L = 0.22µH, DCR = 0.33mΩ
INFINEON FETs:
BSC042N03MS G (UPPER/LOWER)
1k
10k
100k
LOAD CURRENT (mA)
Figure 11. Efficiency—1.0 MHz, VOUT = 1.8 V
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
10
VIN = 13V (PSM)
VIN = 16.5V (PSM)
VIN = 13V
VIN = 16.5V
TA = 25°C
fVSOWUT=
= 5V
1.0MHz
WÜRTH INDUCTOR:
744355090, L = 0.9µH, DCR = 1.6mΩ
INFINEON FETs:
BSC042N03MS G (UPPER/LOWER)
100
1k
10k
LOAD CURRENT (mA)
100k
Figure 12. Efficiency—1.0 MHz, VOUT = 5 V
Data Sheet
0.807
0.806
0.805
0.804
0.803
0.802
0.801
0.800
0.799
0.798
0.797
0.796
0.795
0.794
0.793
0.792
0
VIN = 13V
+125°C
+25°C
–40°C
VIN = 16.5V
+125°C
+25°C
–40°C
2000
4000
6000
8000
LOAD CURRENT (mA)
10,000
Figure 13. Output Voltage Accuracy—300 kHz, VOUT = 0.8 V
1.821
1.816
1.811
1.806
1.801
1.796
1.791
1.786
0
VIN = 5.5V
+125°C
+25°C
–40°C
VIN = 13V
+125°C
+25°C
–40°C
VIN = 16.5V
+125°C
+25°C
–40°C
1500 3000 4500 6000 7500 9000 10,500 12,000 13,500 15,000
LOAD CURRENT (mA)
Figure 14. Output Voltage Accuracy—300 kHz, VOUT = 1.8 V
7.100
7.095
7.090
7.085
7.080
7.075
7.070
7.065
7.060
7.055
7.050
7.045
7.040
7.035
7.030
7.025
7.020
7.015
7.010
7.005
7.000
0
+125°C
+25°C
–40°C
1000 2000
VIN = 13V
VIN = 16.5V
3000 4000 5000 6000
LOAD CURRENT (mA)
7000
8000
9000
Figure 15. Output Voltage Accuracy—300 kHz, VOUT = 7 V
Rev. B | Page 8 of 40
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