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參數(shù)資料
| 型號： | LM-338K |
| 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 |
| 文件大小： | 185K |
| 代理商： | LM-338K |
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 +
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| LM10BH | Operational Amplifier and Voltage Reference |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM338K STEEL | 功能描述:線性穩(wěn)壓器 - 標準 RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| LM338K STEEL/NOPB | 功能描述:線性穩(wěn)壓器 - 標準 RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| LM338K | 制造商:STMicroelectronics 功能描述:IC REGULATOR ADJ +1.2/32V |
| LM338K | 制造商:STMicroelectronics 功能描述:IC ADJ LINEAR REG 1.2V TO 32V |
| LM338K/STEEL | 功能描述:IC REG LDO ADJ 5A TO-3 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構:正，固定式 輸出電壓:2.7V 輸入電壓:最高 5.5V 電壓 - 壓降（標準）:0.21V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細型，TSOT-23-5 供應商設備封裝:TSOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1100 (CN2011-ZH PDF) 其它名稱:576-1852-1 |
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