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參數(shù)資料
| 型號： | LM394CN |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 小信號晶體管 |
| 英文描述： | LM194/LM394 Supermatch Pair |
| 中文描述： | 20 mA, 20 V, 2 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 291K |
| 代理商： | LM394CN |
LM3940
1A Low Dropout Regulator for 5V to 3.3V Conversion
General Description
The LM3940 is a 1A low dropout regulator designed to pro-
vide 3.3V from a 5V supply.
The LM3940 is ideally suited for systems which contain both
5V and 3.3V logic, with prime power provided from a 5V bus.
Because the LM3940 is a true low dropout regulator, it can
hold its 3.3V output in regulation with input voltages as low
as 4.5V.
The T0-220 package of the LM3940 means that in most ap-
plications the full 1A of load current can be delivered without
using an additional heatsink.
The surface mount TO-263 package uses minimum board
space, and gives excellent power dissipation capability when
soldered to a copper plane on the PC board.
Features
n
Output voltage specified over temperature
n
Excellent load regulation
n
Guaranteed 1A output current
n
Requires only one external component
n
Built-in protection against excess temperature
n
Short circuit protected
Applications
n
Laptop/Desktop Computers
n
Logic Systems
Typical Application
DS012080-1
*
Required if regulator is located more than 1" from the power supply filter capacitor or if battery power is used.
**
See Application Hints.
May 1999
L
1999 National Semiconductor Corporation
DS012080
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LM394H | LM194/LM394 Supermatch Pair |
| LM394N | LM194/LM394 Supermatch Pair |
| LM3940IMP-3.3 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM3940IT-3.3 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM3940WG-3.3-QML | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM394H | 制造商:Texas Instruments 功能描述:TRANSISTOR PAIR TO-5-6 394 |
| LM394H | 制造商:Texas Instruments 功能描述:TRANSISTOR PAIR TO-5-6 394 |
| LM394H/NOPB | 制造商:Texas Instruments 功能描述:Trans GP BJT NPN 35V 0.02A 6-Pin TO-99 Box |
| LM394N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM194/LM394 Supermatch Pair |
| LM395 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ultra Reliable Power Transistors |
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