Bay Linear
Inspire the Linear Power
1.25A High Current Low Dropout
Voltage Regulator Adjustable
LM2940/2941
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碌A(chǔ) 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
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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 鈥淟oad Dump鈥?Protection
Zero Current Shutdown Mode (5-pin version)
Offer in TO-263, TO-220, SOT-223, & New Slim
LPDD
Similar to industry Standard MIC2940LM2941
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Applications
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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
Pin Connection
Ordering Information
Devices
LM2940T
LM2941T
LM2940S
LM2941S
LM2940N
LM2941N
LM2940J
LM2941J
TO-220-3 Package
TO-220-5 Package
TO-263-5 Package
BAY
B2940
BAY
BAY
B2941
1
2 3 4 5
B2941
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
擄C
to 125
擄C
-40
擄C
to 125
擄C
-40
擄C
to 125
擄C
-40
擄C
to 125
擄C
-40
擄C
to 125
擄C
-40
擄C
to 125
擄C
-40
擄C
to 125
擄C
-40
擄C
to 125
擄C
TO-263-3 Package
1) ADJUST
2) ON/OFF
3) GND
4) INPUT
5) OUPUT
BAY
B2940
1
2
3
V
IN
GND V
OUT
V
IN
GND V
OUT
1 2 3 4 5
Front View
Front View
Top View
Top View
Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556
www.baylinear.com
LM2940J PDF文件相關(guān)型號(hào)
LM2940N,LM2940T,LM2941J
LM2940J相關(guān)型號(hào)PDF文件下載
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型號(hào)
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