- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377723 > LT338A (Linear Technology Corporation) 5A Positive Adjustable Voltage Regulator PDF資料下載
參數(shù)資料
| 型號： | LT338A |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 5A Positive Adjustable Voltage Regulator |
| 中文描述： | 5A條正，可調(diào)式電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 185K |
| 代理商： | LT338A |
7
LT138A/LT338A
LM138/LM338
APPLICATIO
S I
N
FOR
ATIO
U
negative side of the load. Although it may not be immedi-
ately obvious, best load regulation is obtained when the
top of the resistor divider, R1, is connected directlyto the
case not to the load This is illustrated in Figure 3 If R1
were connected to the load, the effective resistance be-
tween the regulator and the load would be:
W
U
R
R
R
R
R
ParasiticLine
sis
ce
P
P
2
1
1
+
=
,
Re
tan
Connected as shown, R
P
is not multiplied by the divider
ratio. R
P
is about 0.004
per foot using 16 gauge wire.
This translates to 4mV/ft at 1A load current, so it is
important to keep the positive lead between regulator and
load as short as possible, and use large wire or PC board
traces.
LT338A
R
PARASITIC
LINE RESISTANCE
V
IN
R1
CONNECT
R1 TO CASE
CONNECT
R2 TO LOAD
138A/338A F03
V
OUT
ADJ
V
IN
R
L
R2
Figure 3. Connections for Best Load Regulation
TYPICAL APPLICATIO
N
S
Improving Ripple Rejection
LT338A
V
IN
R1
121
1%
R2
365
1%
1
μ
F
*C1 IMPROVES RIPPLE REJECTION, X
C
SHOULD BE SMALL COMPARED TO R2
C
L
*
10
μ
F
138A/338A TA03
V
OUT
ADJ
5V
V
IN
+
+
1.2V to 25V Adjustable Regulator
LT338A
V
IN
R1
240
C1*
1
μ
F
NEEDED IF DEVICE IS FAR FROM FILTER CAPACITORS
OPTIONAL, IMPROVES TRANSIENT RESPONSE
**
R2
R1
R2
5k
138A/338A TA04
V
OUT
ADJ
V
OUT
V
IN
+
C2**
1
μ
F
*
+
V
OUT
= 1.25V
1 +
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT338AK | 5A Positive Adjustable Voltage Regulator |
| LT138A | Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs 24-SOIC 0 to 70 |
| LT138AK | 5A Positive Adjustable Voltage Regulator |
| LT3433EFE | 40 POS PEEL-A-WAY® SINGLE ROW SOCKET |
| LT3433IFE | High Voltage Step-Up/Step-Down DC/DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT338AK | 制造商:Linear Technology 功能描述:Standard Regulator Pos 1.2V to 32V 5A 3-Pin(2+Tab) TO-3 |
| LT338BC | 制造商:Datak Corporation 功能描述: 制造商:EDSYN 功能描述:Tools, Tips Soldering, Tip / Nozzle Length:0.74" |
| LT3400T | 制造商:Eaton Corporation 功能描述:TYPE LT TRIP UNIT ONLY 3P 400A 600VAC MAX |
| LT3400TA | 制造商:Eaton Corporation 功能描述:TYPE LT TRIP UNIT ONLY 3P 400A 600VAC MAX |
| LT3402EMS#PBF | 制造商:Linear Technology 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。