LDO Regulator, 100 mA, Ultra-High PSRR

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Overview

The LM2931 series consists of positive fixed and adjustable output low dropout (LDO) linear voltage regulators that are specifically designed to maintain proper regulation with an extremely low input-to-output voltage differential. These devices are capable of supplying output currents in excess of 100 mA and feature a low bias current of 0.4 mA at 10 mA output. Designed primarily to survive in the harsh automotive environment, these devices will protect all external load circuitry from input fault conditions caused by reverse battery connection, two battery jump starts, and excessive line transients during load dump. This series also includes internal current limiting, thermal shutdown, and additionally, is able to withstand temporary power-up with mirror-image insertion. Due to the low dropout voltage and bias current specifications, the LM2931 series is ideally suited for battery powered industrial and consumer equipment where an extension of useful battery life is desirable. The 'C' suffix adjustable output regulators feature an output inhibit pin which is extremely useful in microprocessor-based systems.

  • Battery Powered Consumer Products
  • Handheld Instruments
  • Automotive
  • Input-to-Output Voltage Differential of < 0.6 V @ 100 mA
  • Output Current in Excess of 100 mA
  • Low Bias Current
  • 60 V Load Dump Protection
  • -50 V Reverse Transient Protection
  • Internal Current Limiting with Thermal Shutdown
  • Temporary Mirror-Image Protection
  • Ideally Suited for Battery Powered Equipment
  • Economical 5-Lead TO-220 Package with Two Optional Leadforms
  • Available in Surface Mount SOP-8, D2PAK and DPAK Packages
  • High Accuracy (+/-2%) Reference (LM2931AC) Available

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28

Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Output

Polarity

VO (V)

IO Typ (A)

VI Min (V)

VI Max (V)

VDO Typ (V)

Iq Typ (mA)

PSRR (dB)

Noise (µVrms)

Enable

PowerGood

Application

Reference Price

LM2931ACD2TR4G

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Active

CAD Model

Pb

A

H

P

D2PAK-5

1

260

REEL

800

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

$0.5767

More Details

LM2931ACDG

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

Price N/A

More Details

LM2931ACDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

$0.2181

More Details

LM2931ACTVG

Loading...

Obsolete

CAD Model

Pb

A

H

P

TO-220-5

NA

0

TUBE

50

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

Price N/A

More Details

LM2931AD-5.0G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

$0.2405

More Details

LM2931AD-5.0R2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

$0.2217

More Details

LM2931AD2T-5.0G

Loading...

Obsolete

CAD Model

Pb

A

H

P

D2PAK-3

1

260

TUBE

50

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

Price N/A

More Details

LM2931AD2T-5R4G

Loading...

Active

CAD Model

Pb

A

H

P

D2PAK-3

1

260

REEL

800

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

$0.4285

More Details

LM2931ADT-5.0G

Loading...

Obsolete

CAD Model

Pb

A

H

P

DPAK-3

1

260

TUBE

75

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

Price N/A

More Details

LM2931ADT-5.0RKG

Loading...

Active

CAD Model

Pb

A

H

P

DPAK-3

1

260

REEL

2500

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

$0.2652

More Details

LM2931AT-5.0G

Loading...

Active

CAD Model

Pb

A

H

P

TO-220-3

NA

0

TUBE

50

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

$0.5209

More Details

LM2931AZ-5.0G

Loading...

Active

CAD Model

Pb

A

H

P

TO-92

NA

0

BLKBG

2000

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

$0.1975

More Details

LM2931AZ-5.0RAG

Loading...

Active

CAD Model

Pb

A

H

P

TO-92

NA

0

REEL

2000

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

$0.2225

More Details

LM2931AZ-5.0RPG

Loading...

Active

CAD Model

Pb

A

H

P

TO-92

NA

0

FNFLD

2000

N

Single

Positive

5

0.1

2.5

40

0.16

0.4

90

700

No

No

Industrial

$0.2347

More Details

LM2931CD2TG

Loading...

Obsolete

CAD Model

Pb

A

H

P

D2PAK-5

1

260

TUBE

50

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

Price N/A

More Details

LM2931CD2TR4G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

D2PAK-5

1

260

REEL

800

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

Price N/A

More Details

LM2931CDG

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

Price N/A

More Details

LM2931CDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

$0.1933

More Details

LM2931CTG

Loading...

Last Shipments

CAD Model

Pb

A

H

P

TO-220-5

NA

0

TUBE

50

N

Single

Positive

Adj

0.1

2.5

40

0.16

0.4

90

700

Yes

No

Industrial

Price N/A

More Details

LM2931D-5.0G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

5

0.1

2.5

40