UNISONIC TECHNOLOGIES CO., LTD
LM2940
LINEAR INTEGRATED CIRCUIT
1A LOW-DROPOUT POSITIVE
VOLTAGE REGULATOR
1
DESCRIPTION
The UTC LM2940 is a low dropout regulator designed to
provide output current up to 1A with a typically 500mV dropout
Voltage and a maximum of 1V. It is capable of reducing the
ground current when the differential between the input voltage
and the output voltage outrun 3V.
UTC LM2940 offers low quiescent current (typically 30mA at
1A and an input-output differential of 5V). Higher quiescent
currents only exist when the regulator is in the dropout mode
(VIN-VOUT≤3V).
FEATURES
* 500mV Typically Dropout at 1A
* Output Current in Excess of 1A
* Low Quiescent Current
* Reversed-Battery Protection
* Current Limit and Thermal Shutdown.
* Mirror Image Insertion Protection
ORDERING INFORMATION
Ordering Number
Pin Assignment
Packing
Package
Lead Free
Halogen Free
1
I
2
3
-
LM2940G-xx-AA3-R
LM2940G-xx-TA3-T
LM2940G-xx-TF3-T
LM2940G-xx-TN3-R
LM2940G-xx-TQ2-R
LM2940G-xx-TQ2-T
LM2940G-xx-TQ3-R
LM2940G-xx-TQ3-T
SOT-223
TO-220
G
G
G
G
G
G
G
G
O
O
O
O
O
O
O
O
Tape Reel
Tube
LM2940L-xx-TA3-T
LM2940L-xx-TF3-T
LM2940L-xx-TN3-R
LM2940L-xx-TQ2-R
LM2940L-xx-TQ2-T
LM2940L-xx-TQ3-R
LM2940L-xx-TQ3-T
I
TO-220F
TO-252
I
Tube
I
Tape Reel
Tape Reel
Tube
TO-263
I
TO-263
I
TO-263-3
TO-263-3
I
Tape Reel
Tube
I
Notes: 1. xx: Output Voltage, refer to Marking Information.
2. Pin Assignment: I: VIN G: GND O:VOUT
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