NSC LM3480IM3X-5.0, LM3480IM3X-15, LM3480IM3-5.0, LM3480IM3-3.3, LM3480IM3-15 Datasheet
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LM3480
100 mA, SOT-23, Quasi Low-Dropout Linear Voltage
Regulator
LM3480 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator
June 1999
General Description
The LM3480 is an integrated linear voltage regulator. It features operation from an input as high as 30V and a guaranteed maximumdropout of 1.2V at the full 100 mA load. Standard packaging for the LM3480 is the 3-lead SuperSOT
package.
The 5, 12, and 15V members of the LM3480 series are intended as tiny alternatives to industry standard LM78LXX
series and similar devices. The 1.2V quasi low dropout of
LM3480 series devices makes them a nice fit in many applications where the 2 to 2.5V dropout of LM78LXX series devices precludes their (LM78LXX series devices) use.
The LM3480 series features a 3.3V member. The SOT packaging and quasi low dropout features of the LM3480 series
converge in this device to provide a very nice, very tiny 3.3V,
100 mA bias supply that regulates directly off the system
±
5V
5%power supply.
Typical Application Circuit
Connection Diagram
Key Specifications
n 30V maximum input for operation
n 1.2V guaranteed maximum dropout over full load and
temperature ranges
®
n 100 mA guaranteed minimum load current
±
n
5%guaranteed output voltage tolerance over full load
and temperature ranges
n −40 to +125˚C junction temperature range for operation
Features
n 3.3, 5, 12, and 15V versions available
n Packaged in the tiny 3-lead SuperSOT package
Applications
n Tiny alternative to LM78LXX series and similar devices
n Tiny 5V
n Post regulator for switching DC/DC converter
n Bias supply for analog circuits
±
5%to 3.3V, 100 mA converter
DS100070-2
DS100070-1
Top View
3-Lead, Molded-Plastic Small-Outline Transistor (SOT) Package
SuperSOT®is a registered trademark of National Semiconductor.
© 1999 National Semiconductor Corporation DS100070 www.national.com
SOT-23 Package
Package Code MA03B (Note 1)
Ordering Information
Output
Voltage
(V)
3.3 LM3480IM3-3.3 L0A 250 Units on Tape and Reel
3.3 LM3480IM3X-3.3 L0A 3k Units on Tape and Reel
5 LM3480IM3-5.0 L0B 250 Units on Tape and Reel
5 LM3480IM3X-5.0 L0B 3k Units on Tape and Reel
12 LM3480IM3-12 L0C 250 Units on Tape and Reel
12 LM3480IM3X-12 L0C 3k Units on Tape and Reel
15 LM3480IM3-15 L0D 250 Units on Tape and Reel
15 LM3480IM3X-15 L0D 3k Units on Tape and Reel
Order
Number
(Note 2)
Package
Marking
(Note 3)
Comments
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Absolute Maximum Ratings (Note 4)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage (IN to GND) 35V
Power Dissipation (Note 5) 333mW
ESD (Note 7) 2kV
Operating Ratings (Note 4)
Max. Input Voltage (IN to GND) 30V
Junction Temp. (T
Max. Power Dissipation (Note 8) 250mW
) −40 to +125˚C
J
Junction Temp. (Note 5) +150˚C
Ambient Storage Temp. −65 to +150˚C
Soldering Time, Temp. (Note 6)
Wave
Infrared
Vapor Phase
4 sec., 260˚C
10 sec., 240˚C
75 sec., 219˚C
Electrical Characteristics
LM3480-3.3, LM3480-5.0
=
Typicals and limits appearing in normal type apply for T
junction temperature range for operation, −40 to +125˚C. (Notes 9, 10, 11)
Nominal Output Voltage (V
) 3.3V 5.0V
NOM
Symbol Parameter Conditions Typical Limit Typical Limit
V
∆V
∆V
I
V
V
e
GND
OUT
IN
OUT
n
Output Voltage V
Line Regulation V
OUT
Load Regulation V
OUT
Ground Pin
Current
-
Dropout Voltage I
Output Noise
Voltage
=
+ 1.5V,
V
IN
NOM
1mA≤I
NOM
I
OUT
IN
10 mA ≤ I
V
NOM
No Load
OUT
I
OUT
V
IN
Bandwidth: 10 Hz to 100 kHz
≤ 100 mA
OUT
+ 1.5V ≤ VIN≤ 30V,
=
1mA
=
+ 1.5V,
V
NOM
≤ 100 mA
OUT
+ 1.5V ≤ VIN≤ 30V,
=
10 mA 0.7
=
100 mA 0.9
=
10V,
=
T
25˚C. Limits appearing in boldface type apply over the entire
A
J
3.30
5.00
3.17
3.14
3.43
3.46
10
12
25
20
20
40
2
2
4
0.7
0.9
1.0
0.9
1.1
1.2
100 150 µV
4.80
4.75
5.20
5.25
25
40
4
0.9
1.0
1.1
1.2
Units
V
V(min)
V(min)
V(max)
V(max)
mV
mV(max)
mV
mV(max)
mA
mA(max)
V
V(max)
V(max)
V
V(max)
V(max)
rms
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