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參數資料
| 型號： | ADP3156JR-18 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Dual Power Supply Controller for Desktop Systems |
| 中文描述： | 雙電源控制器桌面系統 |
| 文件頁數： | 2/12頁 |
| 文件大小： | 186K |
| 代理商： | ADP3156JR-18 |
REV. 0
–2–
ADP3156–SPECIFICATIONS
Parameter
Symbol
Conditions
Min
Typ
Max
Units
OUTPUT ACCURACY
ADP3156-1.5 V
ADP3156-1.8 V
ADP3156-2.5 V
V
O
1.480
1.777
2.475
1.500
1.800
2.500
1.520
1.823
2.525
V
V
V
OUTPUT VOLTAGE LINE
REGULATION
V
O
I
LOAD
= 10 A (Figure 2)
V
IN
= 4.75 V to 5.25 V
0.05
%
INPUT DC SUPPLY CURRENT
2
Normal Mode
Shutdown
I
Q
V
SD
= 0.6 V
T
A
= +25
°
C, V
SD
= 2.0 V
4.1
140
5.5
250
mA
μ
A
CURRENT SENSE THRESHOLD
VOLTAGE
V
SENSE(TH)
V
SENSE–
Forced to V
OUT
– 3%
T
A
= +25
°
C
V
OUT
in Regulation
V
OUT
= 0 V
125
145
165
mV
C
T
PIN DISCHARGE CURRENT
I
T
65
2
μ
A
μ
A
μ
s
10
OFF-TIME
t
OFF
C
T
= 150 pF
1.8
2.45
3.2
DRIVER OUTPUT TRANSITION
TIME
t
R
, t
F
C
L
= 7000 pF (DRIVE1, 2)
T
A
= +25
°
C
120
200
ns
POSITIVE POWER GOOD TRIP POINT
3
V
PWRGD
% Above Output Voltage
5
8
%
NEGATIVE POWER GOOD TRIP POINT
3
V
PWRGD
% Below Output Voltage
–8
–5
%
POWER GOOD RESPONSE TIME
t
PWRGD
500
μ
s
CROWBAR TRIP POINT
V
CROWBAR
% Above Output Voltage
9
15
24
%
ERROR AMPLIFIER
OUTPUT IMPEDANCE
RO
ERR
275
k
ERROR AMPLIFIER
TRANSCONDUCTANCE
g
m(ERR)
2.2
mmho
ERROR AMPLIFIER MINIMUM
OUTPUT VOLTAGE
V
CMPMIN
V
SENSE–
Forced to V
OUT
+ 3%
0.8
V
ERROR AMPLIFIER MAXIMUM
OUTPUT VOLTAGE
V
CMPMAX
V
SENSE–
Forced to V
OUT
– 3%
2.4
V
ERROR AMPLIFIER BANDWIDTH –3 dB
BW
ERR
CMP = Open
500
kHz
LINEAR REGULATOR FEEDBACK
CURRENT
I
FB
0.35
1
μ
A
LINEAR REGULATOR
OUTPUT VOLTAGE
Figure 2, V
LDOIN
= 1.8 V
R
PROG
= 5 k
, R2 = 20 k
,
I
O2
= 1 A
V
O2
1.47
1.5
1.53
V
SHUTDOWN (SD) PIN
Low Threshold
High Threshold
Input Current
SD
L
SD
H
SD
IC
Part Active
Part in Shutdown
0.6
V
V
μ
A
2.0
10
NOTES
1
All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods. Specifications subject to change without
notice.
2
Dynamic supply current is higher due to the gate charge being delivered to the external MOSFETs.
3
The trip point is for the output voltage coming into regulation.
Specifications subject to change without notice.
(0
8
C
#
T
A
#
+70
8
C, V
CC
= 12 V, V
IN
= 5 V, unless otherwise noted)
1
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