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參數(shù)資料
| 型號： | LM2940 |
| 廠商： | National Semiconductor Corporation |
| 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： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 196K |
| 代理商： | LM2940 |
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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2940-50CKCSE3 | 功能描述:IC REG LDO 5V 1A TO-220 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式和可調(diào)式 輸出電壓:3.3V，1.25 V ~ 5.7 V 輸入電壓:4.5 V ~ 7 V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.1V @ 1A 穩(wěn)壓器數(shù)量:2 電流 - 輸出:1A 電流 - 限制（最小）:1A 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-252-5，DPak（4 引線 + 接片），TO-252AD 供應(yīng)商設(shè)備封裝:PPAK 包裝:管件 其它名稱:497-3576-5 |
| LM2940-50IKCSE3 | 功能描述:IC REG LDO 5V 1A TO-220 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式和可調(diào)式 輸出電壓:3.3V，1.25 V ~ 5.7 V 輸入電壓:4.5 V ~ 7 V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.1V @ 1A 穩(wěn)壓器數(shù)量:2 電流 - 輸出:1A 電流 - 限制（最?。?1A 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-252-5，DPak（4 引線 + 接片），TO-252AD 供應(yīng)商設(shè)備封裝:PPAK 包裝:管件 其它名稱:497-3576-5 |
| LM2940CS | 制造商:National Semiconductor Corporation 功能描述:2940CS |
| LM2940CS12 | 制造商:NATIONAL 功能描述:* |
| LM2940CS-12 | 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 |
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