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LM338P#PBF 参数 Datasheet PDF下载

LM338P#PBF图片预览
型号: LM338P#PBF
PDF下载: 下载PDF文件 查看货源
内容描述: [IC VREG 1.2 V-32 V ADJUSTABLE POSITIVE REGULATOR, PSFM3, LEAD FREE, PLASTIC, TO-247, TO-3P, 3 PIN, Adjustable Positive Single Output Standard Regulator]
分类和应用: 局域网输出元件调节器
文件页数/大小: 12 页 / 150 K
品牌: LINER [ LINEAR TECHNOLOGY ]
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LT138A/LT339A
LM138/LM338
APPLICATIONS INFORMATION
LT338A
V
IN
V
IN
ADJ
V
OUT
CONNECT
R1 TO CASE
R1
R
L
R2
CONNECT
R2 TO LOAD
138A/338A F03
R
P
PARASITIC
LINE RESISTANCE
Figure 3. Connections for Best Load Regulation
TYPICAL APPLICATIONS
Improving Ripple Rejection
LT338A
V
IN
+
1μF
V
IN
ADJ
V
OUT
R1
121Ω
1%
R2
365Ω
1%
5V
+
C
L
*
10μF
*C1 IMPROVES RIPPLE REJECTION, X
C
SHOULD BE SMALL COMPARED TO R2
138A/338A TA03
1.2V to 25V Adjustable Regulator
LT338A
V
IN
V
IN
ADJ
V
OUT
R1
240Ω
R2
5k
V
OUT
+
C1*
1μF
+
C2**
1μF
138A/338A TA04
*NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
**OPTIONAL, IMPROVES TRANSIENT RESPONSE
V
OUT
= 1.25V 1 + R2
R1
( )
138afc
8