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LM2940N 数据表(PDF) 1 Page - List of Unclassifed Manufacturers

部件名 LM2940N
功能描述  1.25A High Current Low Dropout
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制造商  ETC [List of Unclassifed Manufacturers]
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标志 ETC - List of Unclassifed Manufacturers

LM2940N 数据表(HTML) 1 Page - List of Unclassifed Manufacturers

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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
LM2940/2941
Voltage Regulator Adjustable
Pin Connection
Ordering Information
Devices
Package
Temp.
LM2940T
TO-220-3
-40
°C to 125 °C
LM2941T
TO-220-5
-40
°C to 125 °C
LM2940S
TO-263-3
-40
°C to 125 °C
LM2941S
TO-263-5
-40
°C to 125 °C
LM2940N
SOT-223-3
-40
°C to 125 °C
LM2941N
SOT-223-5
-40
°C to 125 °C
LM2940J
LPDD-3
-40
°C to 125 °C
LM2941J
LPDD-5
-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
µA 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
TO-263-3 Package
V
OUT
GND
V
IN
BAY
B2940
Front View
12
3
Front View
TO-220-3 Package
BAY
B2940
V
IN
V
OUT
GND
TO-263-5 Package
Top View
45
BAY
B2941
3
2
1
GND
OUPUT
1)
3)
4)
5)
2) ON/OFF
ADJUST
INPUT
TO-220-5 Package
Top View
BAY
B2941
12 3 4 5
TO-263-3 Package
V
OUT
GND
V
IN
BAY
B2940
Front View
12
3
Front View
TO-220-3 Package
BAY
B2940
V
IN
V
OUT
GND
TO-263-3 Package
V
OUT
GND
V
IN
BAY
B2940
Front View
12
3
Front View
TO-220-3 Package
BAY
B2940
V
IN
V
OUT
GND
Front View
TO-220-3 Package
BAY
B2940
V
IN
V
OUT
GND
TO-263-5 Package
Top View
45
BAY
B2941
3
2
1
GND
OUPUT
1)
3)
4)
5)
2) ON/OFF
ADJUST
INPUT
TO-220-5 Package
Top View
BAY
B2941
12 3 4 5
TO-263-5 Package
Top View
45
BAY
B2941
3
2
1
GND
OUPUT
1)
3)
4)
5)
2) ON/OFF
ADJUST
INPUT
GND
OUPUT
1)
3)
4)
5)
2) ON/OFF
ADJUST
INPUT
TO-220-5 Package
Top View
BAY
B2941
12 3 4 5
TO-220-5 Package
Top View
BAY
B2941
12 3 4 5


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