參數(shù)資料
型號： 3745SN
廠商： Linear Technology Corporation
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 抗輻射高效，5安培開關(guān)穩(wěn)壓器
文件頁數(shù)： 2/32頁
文件大?。?/td> 309K
代理商： 3745SN
2
LT1374
1374fb
S8 PART MARKING
1374
13745
1374SN
3745SN
1374HV
ORDER
PART NUMBER
Input Voltage
LT1374............................................................... 25V
LT1374HV .......................................................... 32V
BOOST Pin Voltage................................................. 38V
BOOST Pin Above Input Voltage............................. 15V
SHDN Pin Voltage..................................................... 7V
BIAS Pin Voltage ...................................................... 7V
FB Pin Voltage (Adjustable Part)............................ 3.5V
FB Pin Current (Adjustable Part)............................ 1mA
SENSE Voltage (Fixed 5V Part)................................. 7V
SYNC Pin Voltage ..................................................... 7V
Operating Junction Temperature Range
LT1374C...............................................0
°
C to 125
°
C
LT1374I........................................... –40
°
C to 125
°
C
Storage Temperature Range................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................. 300
°
C
R PACKAGE
7-LEAD PLASTIC DD
FRONT VIEW
TAB
IS
GND
FB OR SENSE*
BOOST
V
GND
V
SYNC OR SHDN*
V
C
7
6
5
4
3
2
1
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
V
IN
BOOST
FB OR
SENSE*
FGND
V
SW
SYNC
OR SHDN*
V
C
BIAS
θ
= 80
°
C/W WITH FUSED (FGND)
GROUND PIN CONNECTED TO GROUND
PLANE OR LARGE LANDS
LT1374CS8
LT1374CS8-5
LT1374CS8-SYNC
LT1374CS8-5 SYNC
LT1374HVCS8
LT1374IS8
LT1374IS8-5
LT1374IS8-SYNC
LT1374IS8-5 SYNC
LT1374HVIS8
T
= 125
°
C,
θ
= 30
°
C/W
WITH PACKAGE SOLDERED TO 0.5 SQUARE INCH
COPPER AREA OVER BACKSIDE GROUND PLANE
OR INTERNAL POWER PLANE.
θ
CAN VARY
FROM 20
°
C/W TO >40
°
C/W DEPENDING ON
MOUNTING TECHNIQUES
ORDER
PART NUMBER
LT1374CR
LT1374CR-5
LT1374CR-SYNC
LT1374CR-5 SYNC
LT1374HVCR
LT1374IR
LT1374IR-5
LT1374IR-SYNC
LT1374IR-5 SYNC
LT1374HVIR
ORDER
PART NUMBER
1374I
1374I5
374ISN
74I5SN
1374HVI
(Note 1)
ABSOLUTEW
W
W
U
PACKAGE/ORDER U
U
W
ORDER
PART NUMBER
FE16 PACKAGE
16-LEAD PLASTIC TSSOP
θ
JA
= 40
°
C/W
EXPOSED PAD SOLDERED TO
GROUND PLANE
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
GND
NC
V
IN
V
IN
BOOST
FB/SENSE
NC
GND
GND
V
SW
V
SW
SYNC
SHDN
V
C
BIAS
GND
T7 PACKAGE
7-LEAD PLASTIC TO-220
T
JMAX
= 125
°
C
, θ
JA
= 50
°
C/W,
θ
JC
= 4
°
C/W
FB OR SENSE*
BOOST
V
GND
V
SHDN
V
C
FRONT VIEW
TAB IS
GND
7
6
5
4
3
2
1
LT1374CT7
LT1374CT7-5
LT1374IT7
LT1374IT7-5
LT1374CFE
LT1374IFE
*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 LTC Marketing for parts specified with wider operating
temperature ranges.
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