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參數(shù)資料
| 型號(hào)： | LM2940CT-12 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 12 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSFM3 |
| 封裝： | PLASTIC, TO-220, 3 PIN |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 196K |
| 代理商： | LM2940CT-12 |
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 Adjustable
LM2940/2941
Pin Connection
TO-263-3 Package
Ordering Information
Devices
LM2940T
LM2941T
LM2940S
LM2941S
LM2940N
LM2941N
LM2940J
LM2941J
Package
TO-220-3
TO-220-5
TO-263-3
TO-263-5
SOT-223-3
SOT-223-5
LPDD-3
LPDD-5
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
-40
°
C to 125
°
C
-40
°
C to 125
°
C
-40
°
C to 125
°
C
Description
The Bay Linear LM2940 & LM2941 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 LM2940/41 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 LM2940/41 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 LM2940-xx devices are in 3 pin fixed voltage
regulators. The LM2941 include an Enable pin in the 5 pin
packages
.
The LM2940/41 are offered in a 3 & 5-pin SOT-223, TO-220 &
TO-263 package compatible with other 3 terminal regulators. The
LM2940/41 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) t t l ti k
Features
High output accuracy of 1%
Output Adjustable from 1.24V to 26V
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-220, SOT-223, & New Slim
LPDD
Similar to industry Standard MIC2940LM2941
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
V
OUT
GND
V
IN
B2940
Front View
1
2
3
Front View
TO-220-3 Package
B2940
GND
TO-263-5 Package
Top View
4 5
B2941
3
2
1
OUPUT
1)
5)
4)
INPUT
3)
TO-220-5 Package
Top View
B2941
1 2 3 4 5
BAY
BAY
V
IN
V
OUT
BAY
GND
2) ON/OFF
BAY
ADJUST
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2940CT-15 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM2940CT-5.0 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM2940IMP-10 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM2940IMP-12 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| LM2940IMP-15 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2940CT-12 | 制造商:Texas Instruments 功能描述:IC V REG LDO +12V 2940 TO-220-3 |
| LM2940CT-12/LB01 | 制造商:Texas Instruments 功能描述:LDO Regulator Pos 12V 1A 3-Pin(3+Tab) TO-220 Rail |
| LM2940CT-12/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(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 |
| LM2940CT-12P+ | 制造商:Texas Instruments 功能描述:Voltage Regulator, +12V, Bi-Polar, 3 Pin, Plastic, SIP |
| LM2940CT-15 | 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 |
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