参数资料
型号: LT1371ISW#TR
厂商: Linear Technology
文件页数: 2/16页
文件大小: 0K
描述: IC REG MULTI CONFIG ADJ 20SOIC
标准包装: 1,000
类型: 降压(降压),升压(升压),反相,Cuk,回扫,正向转换器
输出类型: 可调式
输出数: 1
输出电压: 1.25 V ~ 35 V
输入电压: 2.7 V ~ 25 V
PWM 型: 电流模式
频率 - 开关: 500kHz
电流 - 输出: 3A
同步整流器:
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
供应商设备封装: 20-SOIC
LT1371
A BSOLUTE
A XI U
R A TI G S
Supply Voltage ....................................................... 30V
Switch Voltage
LT1371 ............................................................... 35V
LT1371HV .......................................................... 42V
S/S, SHDN, SYNC Pin Voltage ................................ 30V
Feedback Pin Voltage (Transient, 10ms) .............. ± 10V
Feedback Pin Current ........................................... 10mA
Negative Feedback Pin Voltage
(Transient, 10ms) ............................................. ± 10V
PACKAGE/ORDER I FOR ATIO
Operating Ambient Temperature Range ...... 0 ° C to 70 ° C
Operating Junction Temperature Range
Commercial .......................................... 0 ° C to 125 ° C
Industrial ......................................... – 40 ° C to 125 ° C
Short Circuit ......................................... 0 ° C to 150 ° C
Storage Temperature Range ................ – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec)................. 300 ° C
FRONT VIEW
ORDER PART
ORDER PART
7
6
V IN
S/S
NUMBER
NUMBER
TAB
IS
GND
5
4
3
2
1
R PACKAGE
7-LEAD PLASTIC DD
V SW
GND
NFB
FB
V C
LT1371CR
LT1371HVCR
LT1371IR
LT1371HVIR
V C 1
FB 2
NFB 3
GND 4
TOP VIEW
20 V SW
19 NC
18 V SW
17 GND
LT1371CSW
LT1371HVCSW
LT1371ISW
LT1371HVISW
T JMAX = 125 ° C, θ JA = 30 ° C/W
WITH PACKAGE SOLDERED TO 0.5 INCH 2 COPPER
AREA OVER BACKSIDE GROUND PLANE OR INTERNAL
POWER PLANE. θ JA CAN VARY FROM 20 ° C/W TO
> 40 ° C/W DEPENDING ON MOUNTING TECHNIQUE
GND 5
GND 6
GND 7
SHDN 8
16 GND
15 GND
14 GND
13 NC
FRONT VIEW
7
6
V IN
S/S
ORDER PART
NUMBER
SYNC 9
V IN 10
SW PACKAGE
12 NC
11 GND
TAB
IS
GND
5
4
3
2
1
T7 PACKAGE
V SW
GND
NFB
FB
V C
LT1371CT7
LT1371HVCT7
LT1371IT7
LT1371HVIT7
20-LEAD PLASTIC SO WIDE
T JMAX = 125 ° C, θ JA = 50 ° C/W
θ JA WILL VARY FROM APPROXIMATELY 40 ° C/W WITH
0.75 INCH 2 OF 1 OZ COPPER TO 50 ° C/W WITH 0.33 INCH 2
OF 1 OZ COPPER ON A DOUBLE-SIDED BOARD
7-LEAD TO-220
T JMAX = 125 ° C, θ JA = 50 ° C/W, θ JC = 4 ° C/W
Consult factory for Military grade parts.
ELECTRICAL C HARA C TERISTICS
V IN = 5V, V C = 0.6V, V FB = V REF , V SW , S/S, SHDN, SYNC and NFB pins open, unless otherwise noted.
SYMBOL
V REF
I FB
PARAMETER
Reference Voltage
Feedback Input Current
CONDITIONS
Measured at Feedback Pin
V C = 0.8V
V FB = V REF
q
MIN
1.230
1.225
TYP
1.245
1.245
250
MAX
1.260
1.265
550
UNITS
V
V
nA
q
900
nA
Reference Voltage Line Regulation
2.7V ≤ V IN ≤ 25V, V C = 0.8V
q
0.01
0.03
%/V
2
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