參數(shù)資料
型號： LT1269CT
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 8 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PZFM5
封裝： PLASTIC, TO-220, 5 PIN
文件頁數(shù)： 2/8頁
文件大小： 212K
代理商： LT1269CT
2
LT1271/LT1269
A
Supply Voltage ....................................................... 30V
Switch Output Voltage ............................................ 60V
Feedback Pin Voltage (Transient, 1ms) ................
±
15V
Storage Temperature Range................ –65
°
C to 150
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
Operating Junction Temperature Range
Operating.............................................. 0
°
C to 100
°
C
Short Circuit ......................................... 0
°
C to 125
°
C
Lead Temperature (Soldering, 10 sec.)................ 300
°
C
U
PACKAGE/ORDER IU
ORDER PART
NUMBER
V
IN
V
SW
GND
FB
V
C
T PACKAGE
5-LEAD PLASTIC TO-220
T
J MAX
= 100
°
C,
θ
JC
= 4
°
C/W,
θ
JA
= 50
°
C/W
FRONT VIEW
5
4
3
2
1
Q PACKAGE
5-LEAD PLASTIC DD
FRONT VIEW
V
IN
V
SW
GND
FB
V
C
5
4
3
2
1
T
J MAX
= 100
°
C,
θ
JC
= 4
°
C/W,
θ
JA
= 30
°
C/W*
LT1271CQ
LT1269CQ
ORDER PART
NUMBER
LT1271CT
LT1269CT
ORDER PART
NUMBER
LT1269CS
θ
WILL VARY FROM APPROXIMATELY 40
°
C/W
WITH 0.75 SQ. IN. OF 1 OZ. COPPER TO 46
°
C/W
WITH 0.33 SQ. IN. OF 1 OZ. COPPER
1
2
3
4
5
6
7
8
9
10
TOP VIEW
SW PACKAGE
20-LEAD PLASTIC WIDE SO
20
19
18
17
16
15
14
13
12
11
V
SW
V
SW
NC
GND
GND
GND
GND
AGND
V
C
FB
V
SW
V
SW
NC
GND
GND
GND
GND
V
IN
NC
NC
POWER
SWITCH
POWER
SWITCH
SYMBOL
V
REF
PARAMETER
Reference Voltage
CONDITIONS
Measured at Feedback Pin
V
C
= 0.8V
V
FB
= V
REF
MIN
1.224
1.214
TYP
1.244
1.244
350
MAX
1.264
1.274
750
1100
6000
7000
350
400
UNITS
V
V
G
I
B
Feedback Input Current
nA
nA
G
gm
Error Amplifier
Transconductance
Error Amplifier Source or
Sink Current
I
C
=
±
25
μ
A
3000
2400
150
120
4400
μ
mho
μ
mho
G
V
C
= 1.5V
200
μ
A
μ
A
G
Error Amplifier Clamp
Voltage
Reference Voltage Line
Regulation
Error Amplifier Voltage Gain
Minimum Input Voltage (Note 3)
Supply Current
Hi Clamp, V
FB
= 1V
Lo Clamp, V
FB
= 1.5V
3V
≤
V
IN
≤
V
MAX,
V
C
= 0.8V
1.8
0.25
2.3
0.52
0.03
V
V
0.38
G
%/V
A
V
0.9V
≤
V
C
≤
1.4V
500
800
2.8
7
V/V
G
3.0
10
V
I
Q
3V
≤
V
IN
≤
V
MAX
, V
C
= 0.6V
mA
V
IN
= 15V, V
C
= 0.5V, V
FB
= V
REF,
switch pin open, unless otherwise noted.
ELECTRICAL C
HARA TERISTICS
*With device soldered to 1/2 square inch of 1oz copper over backside or internal layer
ground plane. Consult factory for Industrial and Military grade parts.
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