參數(shù)資料
型號: LT1576CS8-5
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: CAP 100UF 25V ELECT TG SMD
中文描述: 3.5 A SWITCHING REGULATOR, 240 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 0.150 INCH, PLASTIC, SOP-8
文件頁數(shù): 2/28頁
文件大?。?/td> 290K
代理商: LT1576CS8-5
2
LT1576/LT1576-5
ABSOLUTE
AXI
U
RATIU
W
(Note 1)
Input Voltage .......................................................... 25V
BOOST Pin Above Input Voltage............................. 10V
SHDN Pin Voltage..................................................... 7V
BIAS Pin Voltage ...................................................... 7V
FB Pin Voltage (Adjustable Part)............................ 3.5V
FB Pin Current (Adjustable Part)............................ 1mA
SYNC Pin Voltage ..................................................... 7V
Operating Junction Temperature Range
LT1576C...............................................0
°
C to 125
°
C
LT1576I........................................... –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
ORDER PART NUMBER
LT1576CS8
LT1576CS8-SYNC
LT1576IS8
LT1576IS8-SYNC
LT1576CS8-5
LT1576CS8-5 SYNC
LT1576IS8-5
LT1576IS8-5 SYNC
S8 PART MARKING
1576
1576SN
1576I
576ISN
*Default is the adjustable output voltage device with FB pin and shutdown
function. Option -5 replaces FB with SENSE pin for fixed 5V output
applications. -SYNC replaces SHDN with SYNC pin for applications
requiring synchronization. Consult factory for Military grade parts.
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
V
SW
V
IN
BOOST
GND
FB OR SENSE*
V
C
BIAS
SHDN OR
SYNC*
θ
= 80
°
C/W WITH FUSED GROUND PIN
CONNECTED TO GROUND PLANE OR
LARGE LANDS
PARAMETER
Feedback Voltage
CONDITIONS
MIN
1.195
1.18
4.94
4.90
13
TYP
1.21
MAX
1.225
1.24
5.06
5.10
26
0.03
2
UNITS
V
V
V
V
All Conditions
G
Sense Voltage (Fixed 5V)
5.0
All Conditions
G
SENSE Pin Resistance
Reference Voltage Line Regulation
Feedback Input Bias Current
Error Amplifier Voltage Gain
Error Amplifier Transconductance
18.5
0.01
0.5
400
1050
k
%/V
μ
A
5V
V
IN
25V
G
(Notes 2, 8)
I (V
C
) =
±
10
μ
A (Note 8)
200
800
400
1300
1700
μ
Mho
μ
Mho
A/V
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
Slope Compensation (Note 9)
Switch On Resistance (Note 7)
1.5
110
130
0.8
2.1
2
0.3
0.2
V
FB
= 1.1V
V
FB
= 1.4V
Duty Cycle = 0
G
40
50
190
200
μ
A
μ
A
V
V
A
A
%
%
G
V
C
Open, V
FB
= 1.1V, DC
50%
DC = 80%
I
SW
= 1.5A
G
1.5
3.50
0.35
0.45
G
Maximum Switch Duty Cycle
V
FB
= 1.1V
90
86
94
94
G
ELECTRICAL CHARACTERISTICS
The
G
denotes specifications which apply over the full operating temperature
range, otherwise specifications are T
A
, T
J
= 25
°
C, V
IN
= 15V, V
C
= 1.5V, Boost = V
IN
+ 5V, switch open, unless otherwise noted.
15765
5765SN
1576I5
76I5SN
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