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參數資料
| 型號： | ADP1148 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | CPF-1 METAL FILM RESISTORS, AXIAL LEADS |
| 中文描述： | 高效率同步降壓型開關穩壓器 |
| 文件頁數： | 5/16頁 |
| 文件大小： | 191K |
| 代理商： | ADP1148 |
Typical Performance Characteristics–ADP1148, ADP1148-3.3, ADP1148-5
–5–
REV. A
MAXIMUM OUTPUT CURRENT – A
200
0
0
5
1
2
3
4
150
100
50
R
S
V
Figure 3. Selecting R
SENSE
vs. Maxi-
mum Output Current
OUTPUT CURRENT – A
E
100
95
80
0.01
0.03
3.0
0.1
0.3
1.0
90
85
I
Q
GATE CHARGE
I
2
R
Figure 6. Typical Efficiency Losses
LOAD CURRENT – A
D
V
O
–
60
40
–600
0.5
2.5
1.0
1.5
2.0
20
0
–20
–40
FIGURE 1 CIRCUIT
V
IN
= 6V
V
IN
= 12V
Figure 9. Load Regulation
L = 50
m
H
R
SENSE
= 0.02
V
L = 25
m
H
R
SENSE
= 0.02
V
L = 50
m
H
R
SENSE
= 0.05
V
(V
IN
–V
OUT
) VOLTAGE – V
1000
800
0
0
5
2
3
4
1
600
400
200
C
O
m
F
Figure 5. Selecting Minimum Output
Capacitor vs. (V
IN
–V
OUT
) and Inductor
D
V
V
IN
+40
+20
–600
4
16
6
8
10
12
14
0
–20
–40
FIGURE 1 CIRCUIT
I
LOAD
= 1A
I
LOAD
= 0.1A
Figure 8. ADP1148-5 Output Voltage
Change vs. Input Voltage
V
SHUTDOWN
= 2V
INPUT VOLTAGE – V
S
m
A
30
04
6
20
8
10
12
14
16
18
25
20
15
10
5
Figure 11. Supply Current in Shutdown
FREQUENCY – kHz
1000
0
0
300
100
200
400
200
800
600
V
IN
= 12V
V
IN
= 10V
V
IN
= 7V
V
SENSE
= V
OUT
= 5V
C
Figure 4. Operating Frequency vs.
Timing Capacitor Value
INPUT VOLTAGE – V
100
86
80
0
20
4
8
12
16
98
88
84
82
92
90
96
94
E
FIGURE 1 CIRCUIT
I
LOAD
= 1A
I
LOAD
= 100mA
Figure 7. Efficiency vs. Input Voltage
INPUT VOLTAGE – V
S
1.6
0.0
4
6
20
ACTIVE MODE
SLEEP MODE
8
10
12
14
16
18
1.4
0.8
0.6
0.4
0.2
1.2
1.0
Figure 10. DC Supply Current
相關PDF資料 |
PDF描述 |
|---|---|
| ADP1148AN-3.3 | Current-Mode SMPS Controller |
| ADP1148AR-3.3 | 10MHz, Rail-to-Rail Input and Output Op Amp in SOT-23; Package: SOT; No of Pins: 5; Temperature Range: 0°C to +70°C |
| ADP1148AR-33 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| ADP1148AR-5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| ADP1173AN-12 | RECTIFIER SCHOTTKY SINGLE 1A 80V 25A-ifsm 0.8V-vf 0.5mA-ir DO-41 5K/AMMO |
相關代理商/技術參數 |
參數描述 |
|---|---|
| adp11480003rr | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述: |
| ADP1148-3.3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:High Efficiency Synchronous Step-Down Switching Regulators(273.94 k) |
| ADP1148-5 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Efficiency Synchronous Step-Down Switching Regulators |
| ADP1148AN | 制造商:Rochester Electronics LLC 功能描述:HIGH EFF SYNCHRONOUS STEP - Bulk |
| ADP1148AN-3.3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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