参数资料
型号: LT1317IS8#TRPBF
厂商: Linear Technology
文件页数: 2/16页
文件大小: 0K
描述: IC REG BOOST ADJ 0.5A 8SOIC
标准包装: 2,500
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 1.24 V ~ 30 V
输入电压: 1.5 V ~ 12 V
PWM 型: 电流模式,混合
频率 - 开关: 600kHz
电流 - 输出: 500mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-SOIC
LT1317/LT1317B
A BSOLUTE
A XI U
R A TI G S
(Note 1)
V IN , LBO Voltage ..................................................... 12V
SW Voltage ............................................... – 0.4V to 30V
FB Voltage .................................................... V IN + 0.3V
V C Voltage ................................................................ 2V
LBI Voltage ............................................ 0V ≤ V LBI ≤ 1V
SHDN Voltage ............................................................ 6V
PACKAGE/ORDER I FOR ATIO
ORDER PART
Junction Temperature .......................................... 125 ° C
Operating Temperature Range
Commercial ........................................... 0 ° C to 70 ° C
Industrial ............................................ – 40 ° C to 85 ° C
Storage Temperature Range ................ – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec)................ 300 ° C
ORDER PART
TOP VIEW
V C 1 8 LBO
FB 2 7 LBI
SHDN 3 6 V IN
GND 4 5 SW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T JMAX = 125 ° C, θ JA = 160 ° C/W
NUMBER
LT1317CMS8
LT1317BCMS8
MS8 PART MARKING
LTHA
LTHB
TOP VIEW
V C 1 8 LBO
FB 2 7 LBI
SHDN 3 6 V IN
GND 4 5 SW
S8 PACKAGE
8-LEAD PLASTIC SO
T JMAX = 125 ° C, θ JA = 120 ° C/W
NUMBER
LT1317CS8
LT1317BCS8
LT1317IS8
LT1317BIS8
S8 PART MARKING
1317
1317B
1317I
1317BI
Consult factory for Military grade parts.
ELECTRICAL C HARA C TERISTICS
Commercial Grade
V IN = 2V, V SHDN = 2V, T A = 25 ° C, unless otherwise noted.
SYMBOL
I Q
PARAMETER
Quiescent Current
CONDITIONS
Not Switching, V SHDN = 2V (LT1317)
V SHDN = 0V (LT1317/LT1317B)
q
q
MIN
TYP
100
25
MAX
160
40
UNITS
μ A
μ A
V SHDN = 2V, Switching (LT1317B)
V SHDN = 2V, Switching (LT1317B)
q
4.8
6.5
7.5
mA
mA
V FB
I B
Feedback Voltage
FB Pin Bias Current (Note 2)
Input Voltage Range
q
q
q
1.22
1.20
1.5
1.24
1.24
12
1.26
1.26
60
12
V
V
nA
V
g m
Error Amp Transconductance
? I = 5 μ A
q
70
140
240
μ mhos
A V
Error Amp Voltage Gain
700
V/V
Maximum Duty Cycle
q
80
85
%
Switch Current Limit (Note 3)
Burst Mode Operation Switch Current Limit
V IN = 2.5V, Duty Cycle = 30%
V IN = 2.5V, Duty Cycle = 30%
Duty Cycle = 30% (LT1317)
q
710
660
800
275
1300
1350
mA
mA
mA
f OSC
Switching Frequency
q
520
620
720
kHz
2
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