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參數(shù)資料
| 型號： | LM3940D |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 1.25A High Current Low Dropout |
| 中文描述： | 1.25A的高電流低壓差 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 145K |
| 代理商： | LM3940D |
Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556 www.baylinear.com
1.25A High Current Low Dropout
Voltage Regulator for Convert 5V & 3.3V
LM3940
Pin Connection
Ordering Information
Devices
LM3940T
LM3940S
LM3940D
LM3940N
LM3940J
XX=Output Voltage
Package
TO-220-3
TO-263-3
TO-252
SOT-223-3
LPDD-3
Temp.
-40
°
C to 125
°
C
-40
°
C to 125
°
C
-40
°
C to 125
°
C
-40
°
C to 125
°
C
-40
°
C to 125
°
C
Description
The Bay Linear LM3940 is a 1.25A high accuracy, low dropout
voltage regulator with only 40mV at light loads and
350mV(Typ.)@ 1.0A) and low quiescent current of 240
μ
A typical.
The LM3940 is designed for low voltage a application that requires
lower dropout voltage and faster transient response. This device is
an excellent choice for use in powering low voltage applications
where require a lower dropout, faster transient response to regulate
from +2.5V to 3.8V supplies and as a post regulator for switching
supplies applications.
The LM3940 offers full protection against over-current faults,
reversed input polarity, reversed load insertion, and positive and
negative transient voltage. On-Chip trimming adjusts the reference
voltage to 1%.
The LM3940 are offered in a 3-pin SOT-223, TO-220 & TO-263
package compatible with other 3 terminal regulators. The LM3940
is also offer in a new LPDD (Low Profile TO-263) package from
4.47 mm (DD) tickness down to only 1.27 mm (LPDD) total
Features
High output accuracy of 1%
Fix Output 5.0v & 3.3V
Output Current of 1.25A
Low Dropout Voltage
Low quiescent current
Extremely Tight Load & Line Regulation
Reverse-battery and “Load Dump” Protection
Zero Current Shutdown Mode (5-pin version)
Offer in TO-263, TO-252, TO-220, SOT-223, &
New Slim LPDD
Similar to industry Standard LM3940
Applications
Powering VGA & Sound Card
LCD Monitor
Battery Powered Equipments/Laptop & Notebook
SMPS Post Regulator / DC to DC Modules
High Efficiency Linear Power Supply
Adjustable Power Supply
Bar Code Scanners
Bay Linear
Inspire the Linear Power
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM3940J | 1.25A High Current Low Dropout |
| LM3940N | 1.25A High Current Low Dropout |
| LM3940S | 1.25A High Current Low Dropout |
| LM3940T | 1.25A High Current Low Dropout |
| LM39501R-1.8 | 5A Low-Voltage Low-Dropout Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LM3940IMP-3.3/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 1A LDO REG 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/NOPB | 制造商:Texas Instruments 功能描述:Linear Voltage Regulator IC |
| LM3940IMP-3.3CT | 制造商:Texas Instruments 功能描述: |
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