LT1424-5 Linear Technology, LT1424-5 Datasheet - Page 2

• Manufacturer Part Number: LT1424-5
• Description: Isolated Flyback Switching Regulator with 5V Output
• Manufacturer: Linear Technology

ABSOLUTE
LT1424-5
(Note 1)
Supply Voltage (V
Switch Voltage (V
SHDN, SYNC Pin Voltage ........................................... 7V
Operating Junction Temperature Range
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
temperature range, otherwise specifications are at T
SYMBOL
Power Supply
V
I
Feedback Amplifier
V
g
I
V
Output Switch
BV
V(V
I
Current Amplifier
ELECTRICAL CHARACTERISTICS
2
CC
SOURCE
LIM
m
IN(MIN)
REF
CL
Commercial .......................................... 0 C to 125 C
Industrial ......................................... – 40 C to 125 C
SW
)
, I
SINK
PARAMETER
Minimum Operating Voltage
Supply Current
Shutdown Mode Supply Current
SHDN Pin Threshold
Reference Voltage
Feedback Amplifier Transconductance
Feedback Amplifier Source or Sink Current
Feedback Amplifier Clamp Voltage
Reference Voltage/Current Line Regulation
Voltage Gain
Output Switch Breakdown Voltage
Output Switch ON Voltage
Switch Current Limit
Control Pin Threshold
Control Voltage to Switch Transconductance
SW
IN
W
MAXIMUM
) ................................................ 20V
) .............................................. 35V
W W
RATINGS
U
A
= 25 C. V
CONDITIONS
Measured at V
5V V
(Note 4)
I
I
Duty Cycle = 50%, 0 C T
Duty Cycle = 50%, – 40 C T
Duty Cycle = 80%
Duty Cycle = Minimum
C
SW
I
C
= 5mA
The
= 10 A (Note 3)
= 1A
IN
IN
denotes the specifications which apply over the full operating
18V
= 5V, V
SW
PACKAGE/ORDER
Consult factory for Military grade parts.
Pin (Note 2)
SW
SHDN
SGND
SYNC
N8 PACKAGE
8-LEAD PDIP
Open, V
V
T
T
C
JMAX
JMAX
J
1
2
3
4
= 145 C,
= 145 C,
125 C
J
C
TOP VIEW
125 C
= 1.4V, unless otherwise specified.
JA
JA
8-LEAD PLASTIC SO
= 130 C/ W (N)
= 110 C/ W (S)
S8 PACKAGE
8
7
6
5
R
V
V
PGND
IN
SW
CCOMP
5.23
5.18
1.35
1.20
0.95
0.85
MIN
400
0.3
30
35
INFORMATION
U
1000
5.30
5.30
0.01
0.55
TYP
500
2.8
7.0
0.9
1.9
1.6
1.6
1.3
1.2
1.2
15
50
50
S8 PART MARKING
2
LT1424CN8-5
LT1424CS8-5
LT1424IN8-5
LT1424IS8-5
ORDER PART
NUMBER
W
14245
14245I
1600
MAX
5.37
5.42
0.04
0.85
1.95
1.95
3.1
9.5
1.3
1.3
1.4
40
80
UNITS
U
mho
%/V
V/V
A/V
mA
V
A
V
V
V
A
V
V
V
A
A
A
V
V