參數(shù)資料
型號(hào): LT1424CS8-9
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Isolated Flyback Switching Regulator with 9V Output
中文描述: 1.9 A SWITCHING REGULATOR, 320 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 0.150 INCH, PLASTIC, SO-8
文件頁(yè)數(shù): 2/16頁(yè)
文件大?。?/td> 141K
代理商: LT1424CS8-9
2
LT1424-5
ABSOLUTE
AXI
U
RATIU
W
(Note 1)
Supply Voltage (V
IN
)................................................ 20V
Switch Voltage (V
SW
) .............................................. 35V
SHDN, SYNC Pin Voltage........................................... 7V
Operating Junction Temperature Range
Commercial .......................................... 0
°
C to 125
°
C
Industrial ......................................... –40
°
C to 125
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
W
W
PACKAGE/ORDER I
FOR
ATIO
W
U
U
Consult factory for Military grade parts.
T
JMAX
= 145
°
C,
θ
JA
= 130
°
C/W (N)
T
JMAX
= 145
°
C,
θ
JA
= 110
°
C/W (S)
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
SHDN
V
C
SYNC
SGND
R
CCOMP
V
IN
V
SW
PGND
14245
14245I
ORDER PART
NUMBER
LT1424CN8-5
LT1424CS8-5
LT1424IN8-5
LT1424IS8-5
S8 PART MARKING
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 5V, V
SW
Open, V
C
= 1.4V, unless otherwise specified.
SYMBOL
Power Supply
V
IN(MIN)
I
CC
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Operating Voltage
Supply Current
Shutdown Mode Supply Current
SHDN Pin Threshold
Feedback Amplifier
V
REF
Reference Voltage
G
2.8
7.0
15
0.9
3.1
9.5
40
1.3
V
G
mA
μ
A
G
G
0.3
V
Measured at V
SW
Pin (Note 2)
5.23
5.18
400
30
5.30
5.30
1000
50
1.9
0.01
500
5.37
5.42
1600
80
V
V
G
g
m
I
SOURCE
, I
SINK
Feedback Amplifier Source or Sink Current
V
CL
Feedback Amplifier Clamp Voltage
Reference Voltage/Current Line Regulation
Voltage Gain
Output Switch
BV
Output Switch Breakdown Voltage
V(V
SW
)
Output Switch ON Voltage
I
LIM
Switch Current Limit
Feedback Amplifier Transconductance
I
C
=
±
10
μ
A (Note 3)
G
μ
mho
G
μ
A
V
5V
V
IN
18V
(Note 4)
G
0.04
%/V
V/V
I
C
= 5mA
I
SW
= 1A
Duty Cycle = 50%, 0
°
C
T
J
125
°
C
Duty Cycle = 50%, –40
°
C
T
J
125
°
C
Duty Cycle = 80%
G
35
50
0.55
1.6
1.6
1.3
V
V
A
A
A
G
0.85
1.95
1.95
G
G
1.35
1.20
Current Amplifier
Control Pin Threshold
Duty Cycle = Minimum
0.95
0.85
1.2
1.2
2
1.3
1.4
V
V
G
Control Voltage to Switch Transconductance
A/V
The
G
denotes the specifications which apply over the full operating
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