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LR8N8 参数 Datasheet PDF下载

LR8N8图片预览
型号: LR8N8
PDF下载: 下载PDF文件 查看货源
内容描述: 高输入电压可调三端线性稳压器 [High Input Voltage Adjustable 3-Terminal Linear Regulator]
分类和应用: 线性稳压器IC调节器电源电路输出元件
文件页数/大小: 11 页 / 600 K
品牌: SUPERTEX [ Supertex, Inc ]
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LR8
Typical Application Circuits
*
VOUT=5.0V
R1
6.04KΩ
±1%
R2
18.2KΩ
±1%
VOUT = 1.20V 1+ R2 + IADJ R2
R1
V
IN
=15V to 450V
V
IN
V
ADJ
OUT
LR8
C1
C2
1.0µF
R
LOAD
≤16.5KΩ
Figure 1: High Input Voltage, 5.0V Output Linear Regulator
* Required for conditions where V
IN
is less than V
OUT
.
V
IN
=15V to 450V
VAuxiliary
+
Vout1
-
+
Vcc
FB
LR8
V
IN
V
OUT
ADJ
Vout2
-
PWM IC
Figure 2: SMPS Start-Up Circuit
1µF
LR8
+
V
IN
= 15V
to 450V
-
V
IN
V
OUT
ADJ
I
OUT =
R
1.20V
R
Load
Figure 3: High Voltage Adjustable Constant Current Source
4