ADP1147AR-3.3 Просмотр технического описания (PDF) - Analog Devices
Номер в каталоге
Компоненты Описание
производитель
ADP1147AR-3.3 Datasheet PDF : 12 Pages
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1.8
0°C
1.6
1.4
+25°C
1.2
1.0
0.8
+70°C
0.6
0.4
0.2
0
1
2
4
6
8
10 12
(VIN – VOUT) – Volts
Figure 12. Operating Frequency vs.
(VIN–VOUT)
155
MAXIMUM THRESHOLD
150
145
140
135
130
0
25
70
85
100
TEMPERATURE – ؇C
Figure 15. Current Sense Threshold
Voltage
3.36
3.34
3.32
3.30
3.28
VIN = 6 VOLTS
3.26
3.24
3.22
VIN = 12 VOLTS
3.20
3.18
0
400
800 1200 1600 2000
LOAD CURRENT – mA
Figure 18. Load Regulation (VO = 3.3 V);
Figure 1 Circuit with ADP1147-3.3
30
25
20
QN + QP = 100nC
15
10
5
QN + QP = 50nC
0
20 50 80 110 140 170 200 230 260
OPERATING FREQUENCY – kHz
Figure 13. Gate Charge Supply
Current
ADP1147-3.3/ADP1147-5
80
70
60
50
+5V
40
30
20
+3.3V
10
0
0.3 0.5 1 1.5 2 2.5 3 3.3 3.5 4 4.5 5
OUTPUT VOLTAGE – Volts
Figure 14. Off-Time vs. VOUT
95
90
1 AMP
85
0.1 AMP
80
75
70
5
8
11
14
17
20
INPUT VOLTAGE – Volts
Figure 16. Efficiency vs. Input
Voltage at VO = 3.3 V; Figure 1
Circuit with ADP1147-3.3
3.35
100mA
3.34
3.33
300mA
3.32
3.31
1 AMP
3.30
3.29
3.28
3.27
4
8
12
16
INPUT VOLTAGE – Volts
Figure 17. Output Voltage vs. Input
Voltage (VO = 3.3 V); Figure 1 Circuit
with ADP1147-3.3
REV. 0
–5–
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