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ADP1883ARMZ-0.3-R7 数据表(PDF) 12 Page - Analog Devices

部件名 ADP1883ARMZ-0.3-R7
功能描述  Synchronous Current-Mode with Constant On-Time,PWM Buck Controller
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP1883ARMZ-0.3-R7 数据表(HTML) 12 Page - Analog Devices

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ADP1882/ADP1883
Rev. 0 | Page 12 of 40
900
950
1000
1050
1100
1150
1200
1250
1300
1350
0
0.8k
1.6k
2.4k
3.2k
4.0k
4.8k
5.6k
6.4k
7.2k
8.0k
LOAD CURRENT (mA)
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
3.6
4.8
6.0
7.2
8.4
9.6
10.8 12.0 13.2 14.4 15.6
VIN (V)
VIN = 16.5V
+125°C
+25°C
–40°C
+125°C
+25°C
–40°C
VIN = 13V
Figure 34. Frequency vs. Load Current, 1.0 MHz, VOUT = 4 V
2.649
2.650
–40
120
100
80
60
40
20
0
–20
2.658
2.657
2.656
2.655
2.654
2.653
2.652
2.651
TEMPERATURE (°C)
Figure 35. UVLO vs. Temperature
40
45
300
400
500
600
700
800
900
1000
FREQUENCY (kHz)
50
55
60
65
70
75
80
85
90
95
100
VDD =2.7V
VDD =5.5V
VDD =3.6V
+125°C
+25°C
–40°C
Figure 36. Maximum Duty Cycle vs. Frequency
VDD = 5.5V
VDD = 3.6V
+125°C
+25°C
–40°C
180
680
630
580
530
480
430
380
330
280
230
–40
120
100
80
60
40
20
0
–20
TEMPERATURE (°C)
Figure 37. Maximum Duty Cycle vs. High Voltage Input (VIN)
VREG = 2.7V
VREG = 5.5V
VREG = 3.6V
Figure 38. Minimum Off Time vs. Temperature
180
680
630
580
530
480
430
380
330
280
230
2.7
5.5
5.1
4.7
4.3
3.9
3.5
3.1
VREG (V)
+125°C
+25°C
–40°C
Figure 39. Minimum Off Time vs. VDD (Low Input Voltage)



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