ADP1882 Analog Devices, ADP1882 Datasheet - Page 8

• Manufacturer Part Number: ADP1882
• Description: Synchronous Current-Mode Buck Controller with Constant On-time and 0.8 V Reference Voltage
• Manufacturer: Analog Devices

ADP1882/ADP1883
100
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
95
90
85
80
75
70
65
60
55
50
45
40
35
30
100
100
100
V
V
DD
DD
V
= 5.5V/V
= 5.5V/V
DD
Figure 10. Efficiency—1.0 MHz, V
Figure 11. Efficiency—1.0 MHz, V
Figure 12. Efficiency—1.0 MHz, V
= 5.5V/V
IN
IN
= 5.5V (PSM)
= 16.5V (PSM)
V
IN
DD
V
= 5.5V (PSM)
DD
V
= 3.6V/V
1k
DD
V
LOAD CURRENT (mA)
1k
= 5.5V/V
LOAD CURRENT (mA)
DD
LOAD CURRENT (mA)
= 5.5V/V
= 5.5V/V
V
IN
DD
V
DD
IN
= 13V
V
= 5.5V/V
DD
IN
= 13V
= 5.5V/V
T
V
F
WURTH INDUCTOR:
744303022, L = 0.22µH, DCR: 0.33mΩ
INFINEON MOSFETS:
BSC042N03MS G (UPPER/LOWER)
IN
T
V
F
WURTH INDUCTOR:
744303022, L = 0.22µH, DCR: 0.33mΩ
INFINEON MOSFETS:
BSC042N03MS G (UPPER/LOWER)
= 13V
1k
= 3.6V/V
A
SW
OUT
A
SW
= 16.5V
OUT
= 25°C
T
V
F
WURTH INDUCTOR:
744318180, L = 1.4µH, DCR: 3.2mΩ
INFINEON MOSFETS:
BSC042N03MS G (UPPER/LOWER)
= 25°C
A
SW
= 1MHz
OUT
IN
= 1MHz
= 1.8V, V
V
V
= 25°C
V
= 0.8V, V
DD
IN
DD
= 16.5V
= 1MHz
DD
= 4V, V
IN
= 16.5V
= 5.5V/V
= 3.6V/V
= 5.5V/V
= 3.6V
10k
10k
IN
IN
OUT
OUT
IN
OUT
= 5.5V
V
V
= 5.5V
= 16.5V
DD
IN
DD
IN
IN
= 0.8 V
= 1.8 V
= 5.5V
= 4 V
= 16.5V
= 5.5V
= 3.6V/V
= 5.5V/V
IN
IN
= 13V
= 13V
100k
100k
10k
Rev. 0 | Page 8 of 40
6.970
6.965
6.960
6.955
6.950
6.945
6.940
6.935
6.930
6.925
6.920
6.915
6.910
6.905
1.809
1.804
1.799
1.794
1.789
1.784
0.820
0.818
0.816
0.814
0.812
0.810
0.808
0.806
0.804
0.802
0.800
0.798
0.796
0.794
0.792
0.790
Figure 13. Output Voltage Accuracy—300 kHz, V
Figure 14. Output Voltage Accuracy—300 kHz, V
Figure 15. Output Voltage Accuracy—300 kHz, V
0
0
0
V
V
1.5k 3.0k 4.5k 6.0k 7.5k 9.0k 10.5k 12.0k 13.5k 15.0k
DD
IN
1k
= 16.5V
2k
= 5.5V,
+125°C
+25°C
–40°C
V
V
2k
IN
IN
= 5.5V
= 5.5V
4k
+125°C
+25°C
–40°C
+125°C
+25°C
–40°C
3k
LOAD CURRENT (mA)
V
V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
DD
IN
6k
4k
= 13V
= 3.6V,
+125°C
+25°C
–40°C
V
V
IN
IN
5k
V
V
8k
DD
IN
= 13V
= 13V
= 16.5V
= 3.6V,
+125°C
+25°C
–40°C
+125°C
+25°C
–40°C
6k
+125°C
+25°C
–40°C
10k
7k
12k
V
V
V
V
DD
IN
8k
IN
IN
OUT
OUT
= 13V
= 5.5V,
= 16.5V
= 16.5V
OUT
14k
+125°C
+25°C
–40°C
+125°C
+25°C
–40°C
+125°C
+25°C
–40°C
= 0.8 V
= 1.8 V
9k
= 7 V
10k
16k