參數(shù)資料
型號(hào)： LT1507IS8-3.3
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： 3 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO8
封裝： 0.150 INCH, PLASTIC, SO-8
文件頁數(shù)： 2/20頁
文件大小： 343K
代理商： LT1507IS8-3.3
2
LT1507
Input Voltage ........................................................... 16V
Boost Pin Voltage .................................................... 25V
Shutdown Pin Voltage ............................................... 7V
FB Pin Voltage (Adjustable Part)............................. 3.5V
FB Pin Current (Adjustable Part)............................. 1mA
Sense Voltage (Fixed 3.3V Part) ................................ 5V
Sync Pin Voltage ....................................................... 7V
Operating Ambient Temperature Range
LT1507C..................................................0
°
C to 70
°
C
LT1507I.............................................. –40
°
C to 85
°
C
Max Operating Junction Temperature...................125
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
ABSOLUTE
AXI
U
RATIU
W
W
W
PACKAGE/ORDER I
FOR
ATIO
W
U
U
T
JMAX
= 125
°
C,
θ
JA
= 80
°
C/W TO 120
°
C/W (N)
T
JMAX
= 125
°
C,
θ
JA
= 120
°
C/W TO 170
°
C/W (S)
DEPENDING ON PC BOARD LAYOUT
1
2
3
4
8
7
6
5
TOP VIEW
V
C
FB/SENSE
GND
SYNC
BOOST
V
IN
V
SHDN
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
Consult factory for Military grade parts.
ORDER PART
NUMBER
LT1507CN8
LT1507CN8-3.3
LT1507CS8
LT1507CS8-3.3
LT1507IN8
LT1507IN8-3.3
LT1507IS8
LT1507IS8-3.3
S8 PART MARKING
ELECTRICAL CHARACTERISTICS
T
J
= 25
°
C, V
IN
= 5V, V
C
= 1.5V, boost open, switch open unless otherwise specified.
PARAMETER
Reference Voltage (Adjustable)
CONDITIONS
MIN
2.39
2.36
3.25
3.23
4.0
TYP
2.42
MAX
2.45
2.48
3.35
3.37
9.5
0.03
2
UNITS
V
V
V
V
All Conditions
G
Sense Voltage (3.3V)
3.3
All Conditions
G
Sense Pin Resistance
Reference Voltage Line Regulation
FB Input Bias Current
Error Amplifier Voltage Gain (Note 8)
Error Amplifier Transconductance (Note 8)
G
6.6
0.01
0.5
400
2000
k
%/V
μ
A
4.3V
≤
V
IN
≤
15V
G
G
(Note 1)
I(V
C
) =
±
10
μ
A
150
1500
1100
2700
3000
μ
mho
μ
mho
G
V
C
Pin to Switch Current
Transconductance
Error Amplifier Source Current
Error Amplifier Sink Current
V
C
Pin Switching Threshold
V
C
Pin High Clamp
Switch Current Limit
2
A/V
μ
A
mA
V
FB
= 2.1V or V
SENSE
= 2.9V
V
FB
= 2.7V or V
SENSE
= 3.7V
Duty Cycle = 0
V
FB
= 2.1V or V
SENSE
= 2.9V
V
C
Open, V
FB
= 2.1V or V
SENSE
= 2.9V
V
IN
≥
5V, V
BOOST
= V
IN
+ 5V
I
SW
= 1.5A, V
BOOST
= V
IN
+ 5V
G
150
225
2
0.9
2.1
2
320
V
V
A
A
%
%
DC
≤
50%
DC = 80%
G
G
1.50
1.35
3
3
Switch On Resistance (Note 6)
0.3
0.4
0.5
G
Maximum Switch Duty Cycle
V
FB
= 2.1V or V
SENSE
= 2.9V
90
86
93
93
G
1507I
1507I3
1507
15073
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LT1508 制造商:LINER 制造商全稱:Linear Technology 功能描述:Power Factor and PWM Controller(Voltage Mode)
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