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LM2940-08-TN3-R

Description
Regulator
CategoryPower/power management    The power supply circuit   
File Size226KB,10 Pages
ManufacturerUNISONIC TECHNOLOGIES CO.,LTD
Websitehttp://www.unisonic.com.tw/
Download Datasheet Parametric View All

LM2940-08-TN3-R Overview

Regulator

LM2940-08-TN3-R Parametric

Parameter NameAttribute value
Objectid106303743
Reach Compliance Codecompliant
ECCN codeEAR99
UNISONIC TECHNOLOGIES CO.,
LM2940
1A LOW-DROPOUT VOLTAGE
REGULATOR
DESCRIPTION
The UTC
LM2940
is a positive voltage regulator features the
ability to source 1A of output current with a dropout voltage of
typically 0.5V and a maximum of 1V over the entire temperature
range. Furthermore, a quiescent current reduction circuit has
been included which reduces the ground current when the
differential between the input voltage and the output voltage
exceeds approximately 3V.The quiescent current with 1A of
output current and an input-output differential of 5V is therefore
only 30mA.Higher quiescent currents only exist when the
regulator is in the dropout mode (V
IN
-V
OUT
≤3V).
Designed also for vehicular applications, the UTC
LM2940
is
protected from reverse battery installations or 2-battery jumps.
During line transients, such as load dump when the input voltage
can momentarily exceed the specified maximum operating
voltage, the regulator will automatically shut down to protect both
the internal circuits and the load. The UTC
LM2940
cannot be
harmed by temporary mirror-image insertion. Familiar regulator
features such as short circuit and thermal overload protection are
also provided.
1
1
LINEAR INTEGRATED CIRCUIT
1
1
TO-220
TO-263-3
SOT-223
TO-252
DIP-16
SOP-16
*Pb-free plating product number: LM2940L
PIN CONFIGURATION
PIN NO.
1
2
3
PIN NAME
V
IN
GND
V
OUT
FEATURES
*Dropout voltage typically 0.5V @Io=1A
*Output current in excess of 1A
*Output voltage trimmed before assembly
*Reverse battery protection
*Internal short circuit current limit
*Mirror image insertion protection
*P
+
Product Enhancement tested.
ORDERING INFORMATION
Order Number
Package
Normal
Lead free
LM2940-xx-TQ3-R LM2940L-xx-TQ3-R
TO-263-3
LM2940-xx-TQ3-T LM2940L-xx-TQ3-T
TO-263-3
LM2940-xx-TN3-R LM2940L-xx-TN3-R
TO-252
LM2940-xx-TN3-T
LM2940L-xx-TN3-T
TO-252
LM2940-xx-AA3-R LM2940L-xx-AA3-R
SOT-223
LM2940-xx-S16-R
LM2940L-xx-S16-R
SOP-16
LM2940-xx-S16-T
LM2940L-xx-S16-T
SOP-16
LM2940-xx-D16-T
LM2940L-xx-D16-T
DIP-16
LM2940-xx-TA3-T
LM2940L-xx-TA3-T
TO-220
Note: xx: Output Voltage, refer to Marking Information.
Packing
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tape Reel
Tube
Tube
Tube
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co.,
1
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