Datasheet LM3480IM3X-5.0, LM3480IM3X-15, LM3480IM3-5.0, LM3480IM3-3.3, LM3480IM3-15 Datasheet (NSC)

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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LM3480-12, LM3480-15

=

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

) 12V 15V

NOM

Symbol Parameter Conditions Typical Limit Typical Limit

V

OUT

∆V

∆V

I

GND

V

IN

V

OUT

e

n

Note 1: The package code MA03B is internal to National Semiconductor Corporation and indicates a specific version of the SOT-23 package and associated me­chanical drawings.

Note 2: The suffix “I” indicates the junction temperature range for operation is the industrial temperature range, −40 to +125˚C. The suffix “M3” indicates the die is
packaged in the 3-lead SOT-23 package. The suffix “X” indicates the devices will be supplied in blocks of 3k units as opposed to blocks of 250 units.

Note 3: Because the entire part number does not fit on the SOT-23 package, the SOT-23 package is marked with this code instead of the part number.
Note 4: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device

is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical
Characteristics tables.

Note 5: The Absolute Maximum power dissipation depends on the ambient temperature and can be calculated using P=(T
perature, T
junction temperature, 150˚C, forT
dissipated at higher ambient temperatures. TheAbsolute Maximum power dissipation can be increased by 3.33 mW for each ˚C below 50˚C ambient. It must be de­rated by 3.33 mW for each ˚C above 50˚C ambient. A θ
Heat sinking enables the safe dissipation of more power. The LM3480 actively limits its junction temperature to about 150˚C.

Note 6: Times shown are dwell times. Temperaturesshown are dwell temperatures. For detailed information on soldering plastic small-outline packages, refer to the

Packaging Databook

Note 7: For testing purposes, ESD was applied using the human-body model, a 100 pF capacitor discharged through a 1.5 kΩ resistor.
Note 8: As with the Absolute Maximum power dissipation, the maximum power dissipation for operation depends on the ambient temperature. The 250 mW rating

appearing under Operating Ratings results from substituting the maximum junction temperature for operation, 125˚C, for T
P=(T
dissipation for operation appearing under Operating Ratings can be increased by 3.33 mW for each ˚C below 50˚C ambient. It must be derated by 3.33 mW for each
˚C above 50˚C ambient.A θ
sipation of more power during operation.

Note 9: A typical is the center of characterization data taken with T
Note 10: All limits are guaranteed. All electrical characteristics having room-temperature limits are tested during production with T

its are guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical process control.
Note 11: All voltages except dropout are with respect to the voltage at the GND pin.

Output Voltage V

Line Regulation V

OUT

Load Regulation V

OUT

Ground Pin
Current

-

Dropout Voltage I

Output Noise
Voltage

is the ambient temperature, and θJAis the junction-to-ambient thermal resistance. The 333 mW rating results from substituting the Absolute Maximum

A

available from National Semiconductor Corporation.

)/θJA. More power can be dissipated at lower ambient temperatures. Less power can be dissipated at higher ambient temperatures. The maximum power

J-TA

of 300˚C/W represents the worst-case condition of no heat sinking of the 3-lead plastic SOT-23 package. Heat sinking enables the dis-

JA

=

+ 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

, 50˚C forTA, and 300˚C/W forθJA. More power canbesafelydissipatedatlowerambienttemperatures.Less power can be safely

J

≤ 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,

of 300˚C/W represents the worst-case condition of no heat sinking of the 3-lead plastic SOT-23 package.

JA

A

=

T

25˚C. Limits appearing in boldface type apply over the entire

A

J

12.00

14

36

2

360 450 µV

=

=

T

25˚C. Typicals are not guaranteed.

J

11.52

11.40

12.48

12.60

40

60

4

0.9

1.0

1.1

1.2

15.00

14.40

14.25

15.60

15.75

16

40

45

75

2

4

0.7

0.9

1.0

0.9

1.1

1.2

)/θJAwhere TJis the junction tem-

J-TA

, 50˚C for TA, and 300˚C/W for θJAin

J

=

=

T

25˚C.All hot and cold lim-

A

J

Units

V(min)

V(min)
V(max)
V(max)

mV

mV(max)

mV

mV(max)

mA

mA(max)

V(max)
V(max)

V(max)
V(max)

V

V

V

rms

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Typical Performance Characteristics Unless indicated otherwise, V

=

C

0.1 µF, and T

OUT

Dropout Voltage
vs Load Current

=

25˚C.

A.

Dropout Voltage
vs Junction Temperature

=

+ 1.5V, C

V

IN

NOM

=

0.1 µF,

IN

Ground Pin Current
vs Input Voltage

Ground Pin Current
vs Load Current

DS100070-19

DS100070-9

DS100070-20

Ground Pin Current
vs Input Voltage

DS100070-10

Ground Pin Current
vs Junction Temperature

DS100070-21

DS100070-22

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Typical Performance Characteristics Unless indicated otherwise, V

C

OUT

=

0.1 µF, and T

=

25˚C. (Continued)

A.

=

+ 1.5V, C

V

IN

NOM

=

0.1 µF,

IN

Input Current
vs Input Voltage

Line Transient Response

DS100070-11

Input Current
vs Input Voltage

DS100070-12

Line Transient Response

DS100070-3

Load Transient Response

DS100070-5

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DS100070-4

Load Transient Response

DS100070-6

Typical Performance Characteristics Unless indicated otherwise, V

C

OUT

=

0.1 µF, and T

=

25˚C. (Continued)

A.

=

+ 1.5V, C

V

IN

NOM

=

0.1 µF,

IN

Load Transient Response

Output Voltage
vs Input Voltage

DS100070-7

Load Transient Response

DS100070-8

Output Voltage
vs Input Voltage

Output Voltage
vs Input Voltage

DS100070-13

DS100070-15

DS100070-14

Output Voltage
vs Input Voltage

DS100070-16

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Typical Performance Characteristics Unless indicated otherwise, V

C

OUT

=

0.1 µF, and T

=

25˚C. (Continued)

A.

=

+ 1.5V, C

V

IN

NOM

=

0.1 µF,

IN

Output Short­Circuit Current

Power Supply
Rejection Ratio

DS100070-17

Output Short­Circuit Current

DS100070-18

Power Supply
Rejection Ratio

DS100070-24

DC Load
Regulation

DS100070-23

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DS100070-25

Physical Dimensions inches (millimeters) unless otherwise noted

LM3480 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator

3-Lead Small-Outline Package (M3)

SOT-23 Package

For Ordering, Refer to Ordering Information Table

NS Package Number MA03B

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