LDO Regulator, 100 mA, 30V, Micropower, with Shutdown

Favorite

Overview

The LP2950 and LP2951 are micropower 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 feature a very low quiescent bias current of 75 µA and are capable of supplying output currents in excess of 100 mA. Internal current and thermal limiting protection is provided.

The LP2951 LDO linear voltage regulator has three additional features. The first is the Errorbar Output that can be used to signal external circuitry of an out of regulation condition, or as a microprocessor power-on reset. The second feature allows the output voltage to be preset to 5.0 V, 3.3 V or 3.0 V output (depending on the version) or programmed from 1.25 V to 29 V. It consists of a pinned out resistor divider along with direct access to the Error Amplifier feedback input. The third feature is a Shutdown input that allows a logic level signal to turn-off or turn-on the regulator output.

Due to the low input-to-output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension ofuseful battery life is desirable. The LP2950 is available in the three pin case 29 and DPAK packages, and the LP2951 is available in the eight pin dual-in-line, SO-8 and Micro-8 surface mount packages.

The 'A' suffix devices feature an initial output voltage tolerance +/-0.5%.

  • Automotive
  • Avionics: RADAR
  • AC Analog Input Module
  • Logistics Robot CPU Board
  • Optical Line Card
  • Wide Input Range: Up to 30 V
  • Rated Output Current of 100 mA
  • Low Dropout 50 mV at 100 mA and 380 mV at 100 mA
  • Low Quiescent Current: 75 µA (Typ)
  • Requires Only a 1.0 mF Output Capacitor for Stability
  • Internal Current and Thermal Limiting
  • LP2951 also has Error(bar) Output Signals an Out of Regulation Condition
  • LP2951 also has Output Programmable from 1.25 V to 29 V
  • LP2951 also has Logic Level Shutdown Input
  • Extremely Tight Line and Load Regulation
  • 5.0 V, 3.3 V or 3.0 V +/- 0.5%

Product List

If you wish to buy products or product samples, please log in to your onsemi account.

Search

Close Search

Products:

24

Share

Product Groups:

Orderable Parts:

24

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

LP2951ACD-3.0G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951ACD-3.0R2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.21

More Details

LP2951ACD-3.3G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

3.3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951ACD-3.3R2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

3.3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.2248

More Details

LP2951ACDG

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951ACDM-3.0RG

Loading...

Active

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Single

Positive

3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.2567

More Details

LP2951ACDM-3.3RG

Loading...

Active

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Single

Positive

3.3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.2833

More Details

LP2951ACDMR2G

Loading...

Active

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.22

More Details

LP2951ACDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.2171

More Details

LP2951ACN-3.0G

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Single

Positive

3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951ACN-3.3G

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Single

Positive

3.3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951ACNG

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951CD-3.0G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951CD-3.0R2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.2304

More Details

LP2951CD-3.3G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951CD-3.3R2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

3.3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.2253

More Details

LP2951CDG

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951CDM-3.0R2G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Single

Positive

3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951CDM-3.3R2G

Loading...

Last Shipments

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Single

Positive

3.3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951CDMR2G

Loading...

Active

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.2904

More Details

LP2951CDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

$0.22

More Details

LP2951CN-3.0G

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Single

Positive

3

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951CN-3.3G

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

LP2951CNG

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Single

Positive

Adj

0.1

2.3

30

0.35

0.093

48

56

Yes

Yes

Industrial

Price N/A

More Details

Show More

1-25 of 25

Products per page

Jump to :