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

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

Datasheet	Packaging	Samples & Pricing	Reliability	Application Notes	Knowledge Base

Features

•	3.3, 5, 12, and 15V versions available
•	Packaged in the tiny 3-lead SuperSOT package

Key Specification

•	30V maximum input for operation
•	1.2V guaranteed maximum dropout over full load and temperature ranges
•	100 mA guaranteed minimum load current
•	±5% guaranteed output voltage tolerance over full load and temperature ranges
•	-40 to +125°C junction temperature range for operation

General Description

The LM3480 is an integrated linear voltage regulator. More...

Applications

•	Tiny alternative to LM78LXX series and similar devices
•	Tiny 5V±5% to 3.3V, 100 mA converter
•	Post regulator for switching DC/DC converter
•	Bias supply for analog circuits

Typical Application

click for larger image

Parameters Values

Output Current 100 mA

Output Min 3.3, 12, 15, 5 Volt

Input Max Voltage 30 Volt

Adjustable Output No

On/Off Pin No

Error Flag No

RegType QuasiLDO

Temperature Min -40 deg C

Temperature Max 125 deg C

Output Max 3.3, 12, 15, 5 Volt

Output Voltage 3.3, 12, 15, 5 Volt

Typical Performance

click for larger image

WEBENCH Live Simulation!

LM3480
3.30 <=	V in Lower V	<=	V in Upper V	<= 30.00
V out	3.30 <=		V	<= 15.00
I out			A	<= 0.10
Ambient Temperature			°C	<= 100
What are WEBENCH® tools?

Also Recommended

LP38691▲	Higher Load Capability & Lower Ground Current
LP38693▲	Higher Load Capability & Lower Ground Current
LP3878-ADJ▲	Improved Output Current
LP5900▲	Wide Selection Of Voltage Options, Supports Ceramic Capacitors
LM3490▲	Has Shutdown Pin

Additional Resources

Application Notes

Connection Diagram

click for larger image

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM3480 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator	703 Kbytes	25-Mar-05	Download
LM3480 100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator (Japanese)	398 Kbytes

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Qty

Qty

$US each

LM3480IM3-12

3

NOPB
STD

1
1

260
260

Full production

N/A

Samples

Buy Now

1K+

$0.34

reel
of
1000

8 weeks

3000

LM3480IM3-15

3

NOPB

1

260

Full production

N/A

Samples

Buy Now

1K+

$0.34

reel
of
1000

8 weeks

2500

LM3480IM3-3.3

3

NOPB
STD

1
1

260
260

Full production

N/A

Samples

Buy Now

1K+

$0.34

reel
of
1000

8 weeks

3000

LM3480IM3-5.0

3

NOPB
STD

1
1

260
260

Full production

N/A

Samples

Buy Now

1K+

$0.34

reel
of
1000

6 weeks

2000

LM3480IM3X-12

3

NOPB
STD

1
1

260
260

Full production

N/A

Buy Now

1K+

$0.34

reel
of
3000

8 weeks

5000

LM3480IM3X-15

3

NOPB

1

260

Full production

N/A

Buy Now

1K+

$0.34

reel
of
3000

8 weeks

5000

LM3480IM3X-3.3

3

NOPB
STD

1
1

260
260

Full production

N/A

Buy Now

1K+

$0.34

reel
of
3000

6 weeks

15000

LM3480IM3X-5.0

3

NOPB
STD

1
1

260
260

Full production

N/A

Buy Now

1K+

$0.34

reel
of
3000

6 weeks

5000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM3480I-3.3 MDA	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008

General Description

The LM3480 is an integrated linear voltage regulator. It features operation from an input as high as 30V and a guaranteed maximum dropout 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.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM3480IM3-12	LB300	0	33664	0	0	3830500	1	1086914834
LM3480IM3-15	LB300	0	33664	0	0	3830500	1	1086914834
LM3480IM3-3.3	LB300	0	33664	0	0	3830500	1	1086914834
LM3480IM3-5.0	LB300	0	33664	0	0	3830500	1	1086914834
LM3480IM3X-12	LB300	0	33664	0	0	3830500	1	1086914834
LM3480IM3X-15	LB300	0	33664	0	0	3830500	1	1086914834
LM3480IM3X-3.3	LB300	0	33664	0	0	3830500	1	1086914834
LM3480IM3X-5.0	LB300	0	33664	0	0	3830500	1	1086914834

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

More Application Notes

Title	Size in Kbytes	Date
AN-1204: Application Note 1204 LM3478/LM3488 Evaluation Board	218 Kbytes	10-May-04	Download
AN-1756: Application Note 1756 LM3481 Evaluation Board	505 Kbytes	30-Apr-08	Download
AN-1756 (Japanese): Application Note 1756 LM3481 Evaluation Board	461 Kbytes
AN-1471: Application Note 1471 LM3489 Demonstration Board	695 Kbytes	24-May-06	Download
AN-1227: Application Note 1227 LM3485 Evaluation Board	86 Kbytes	10-May-04	Download
AN-1392: Application Note 1392 LM3485 LED Demo Board	569 Kbytes	7-Jun-06	Download
AN-1392 (Chinese): Application Note 1392 LM3485 LED Demo Board	235 Kbytes

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[Information as of 8-Nov-2009]