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參數(shù)資料
| 型號： | ADP1148AR-5 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | PLASTIC, SO-14 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 191K |
| 代理商： | ADP1148AR-5 |
–2–
REV. A
ADP1148, ADP1148-3.3, ADP1148-5–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Conditions
2
Min
T yp
Max
Units
FEEDBACK VOLT AGE
ADP1148 Only
V
10
V
IN
= 9 V
1.21
1.25
1.29
V
FEEDBACK CURRENT
ADP1148 Only
I
10
V
OUT
0.2
1.0
μ
A
REGULAT ED OUT PUT VOLT AGE
ADP1148-3.3
ADP1148-5
V
IN
= 9 V
I
LOAD
= 700 mA
I
LOAD
= 700 mA
T
A
= +25
°
C, V
IN
= 7 V to 12 V,
I
LOAD
= 50 mA
3.23
4.9
3.33
5.05
3.43
5.2
V
V
OUT PUT VOLT AGE LINE
REGULAT ION
dV
OUT
–40
+40
mV
OUT PUT VOLT AGE LOAD
REGULAT ION
ADP1148-3.3
ADP1148-5
dV
OUT
5 mA < I
LOAD
< 2 A
5 mA < I
LOAD
< 2 A
I
LOAD
= 0 A
T
A
= +25
°
C
V
IN
= 4 V < V
IN
< 18 V
V
IN
= 4 V < V
IN
< 18 V
V
IN
= 4 V < V
IN
< 18 V
V
SHUT DOWN
= 2.1 V,
4 V < V
IN
< 15 V
40
60
65
100
mV
mV
SLEEP MODE OUT PUT RIPPLE
dV
OUT
I
Q
50
mV p-p
INPUT DC SUPPLY CURRENT
3
Normal Mode
Sleep Mode (ADP1148-3.3)
Sleep Mode (ADP1148-5)
Shutdown
1.6
160
160
10
2.3
250
250
20
mA
μ
A
μ
A
μ
A
CURRENT SENSE T HRESHOLD
VOLT AGE
4
ADP1148 Only
V
8
–V
7
V
9
= V
OUT
/4 + 25 mV (Forced),
V
7
= 5 V, T
A
= +25
°
C
V
9
= V
OUT
/4 mV – 25 mV (Forced),
V
7
= 5 V
V
7
= V
OUT
+ 100 mV (Forced)
V
7
= V
OUT
–
100 mV (Forced)
V
7
= V
OUT
+ 100 mV (Forced
V
7
= V
OUT
– 100 mV (Forced)
25
mV
130
150
25
150
25
150
170
mV
mV
mV
mV
mV
ADP1148-3.3
130
170
ADP1148-5
130
170
SHUT DOWN PIN T HRESHOLD
ADP1148-3.3, ADP1148-5
V
10
I
10
T
A
= +25
°
C
0 V < V
SHUT DOWN
< 8 V, V
IN
= 18 V
T
A
= +25
°
C, V
OUT
in Regulation,
V
7
= V
OUT
,
V
OUT
= 0 V
0.6
0.8
2.0
V
μ
A
SHUT DOWN PIN INPUT CURRENT
1.2
5
C
T
PIN DISCHARGE CURRENT
I
4
50
65
2
90
10
μ
A
μ
A
μ
s
OFF-T IME
t
OFF
t
R
, t
F
C
T
= 390 pF, I
LOAD
= 700 mA
C
L
= 3000 pF (Pins 1, 14)
V
IN
= 6 V, T
A
= +25
°
C
4
5
6
DRIVER OUT PUT T RANSIT ION
T IMES
100
200
ns
NOT ES
1
All limits at temperature extremes are guaranteed via correlation using standard Quality Control methods. Specifications subject to change without notice.
2
T
J
is calculated from the ambient temperature T
and power dissipation P
according to the following formulas:
ADP1148AR, ADP1148AR-3.3, ADP1148AR-5:
T
J
= T
A
+ (P
D
×
110
°
C/W)
ADP1148AN, ADP1148AN-3.3, ADP1148AN-5:
T
= T
+ (P
×
70
°
C/W)
3
Dynamic supply current is higher due to the gate charge being delivered at the switching frequency. T he allowable operating frequency may be limited by power
dissipation at high input voltages.
4
T he ADP1148 version is tested with external feedback resistors, setting the nominal output voltage to 3.3 V.
Specifications subject to change without notice.
(0
8
C
≤
T
A
≤
+70
8
C,
1
V
IN
= 10 V, V
SHUTDOWN
= 0 V, unless otherwse noted. See Figure 17.)
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