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參數(shù)資料
| 型號(hào)： | LM394 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | RES 3.01M OHM 1/10W 1% 0603 SMD |
| 中文描述： | LM194/LM394的Supermatch配對(duì) |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 291K |
| 代理商： | LM394 |
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(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3940 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM3940 | 1.25A High Current Low Dropout |
| LM3940D | 1.25A High Current Low Dropout |
| LM3940J | 1.25A High Current Low Dropout |
| LM3940N | 1.25A High Current Low Dropout |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3940 | 制造商:SEME-LAB 制造商全稱:Seme LAB 功能描述:1 AMP LOW DROPOUT REGULATOR FOR |
| LM3940_03 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1A Low Dropout Regulator for 5V to 3.3V Conversion |
| LM3940D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1.25A High Current Low Dropout |
| LM3940IMP-3.3 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LM3940IMP-3.3 | 制造商:Texas Instruments 功能描述:V REG LDO +3.3V 3940 SOT-223-3 |
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