LDO Regulator, 150 mA, Ultra-Low Dropout, Ultra-Low Iq

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Overview

The NCP551 series of fixed output low dropout (LDO) linear voltage regulators are designed for applications which require low quiescent current. The NCP551 series features an ultra-low quiescent current of 4.0 µA. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, resistors for setting output voltage, current limit, and temperature limit protection circuits.

The NCP551 has been designed to be used with low cost ceramic capacitors and requires a minimum output capacitor of 0.1 µF. The device is housed in the micro miniature TSOP-5 surface mount package. Standard voltage versions are 1.4, 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.3, and 5.0 V. Other voltages are available in 100 mV steps.

  • Battery Powered Instruments
  • Hand–Held Instruments
  • Communication Equipment
  • Consumer
  • Camcorders and Cameras
  • Low quiescent current of 4.0 µA typical
  • Maximum Operating Voltage of 12 V
  • Low Output Voltage Option
  • High Accuracy Output Voltage of 2.0%
  • Industrial Temperature Range of –40° C to 85° C

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11

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

NCP551SN15T1G

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Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

1.5

0.15

1.7

12

0.13

0.004

-

-

Yes

No

-

$0.1805

More Details

NCP551SN18T1G

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Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

1.8

0.15

1.7

12

0.13

0.004

-

-

Yes

No

-

$0.1805

More Details

NCP551SN25T1G

Loading...

Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

2.5

0.15

1.7

12

0.13

0.004

-

-

Yes

No

-

$0.1805

More Details

NCP551SN27T1G

Loading...

Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

2.7

0.15

1.7

12

0.04

0.004

-

-

Yes

No

-

$0.2176

More Details

NCP551SN28T1G

Loading...

Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

2.8

0.15

1.7

12

0.04

0.004

-

-

Yes

No

-

$0.2176

More Details

NCP551SN29T1G

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Last Shipments

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

2.9

0.15

1.7

12

0.04

0.004

-

-

Yes

No

-

Price N/A

More Details

NCP551SN30T1G

Loading...

Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

3

0.15

1.7

12

0.04

0.004

-

-

Yes

No

-

$0.1805

More Details

NCP551SN31T1G

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Last Shipments

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

3.1

0.15

1.7

12

0.04

0.004

-

-

Yes

No

-

Price N/A

More Details

NCP551SN32T1G

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Last Shipments

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

3.2

0.15

1.7

12

0.04

0.004

-

-

Yes

No

-

Price N/A

More Details

NCP551SN33T1G

Loading...

Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

3.3

0.15

1.7

12

0.04

0.004

-

-

Yes

No

-

$0.1805

More Details

NCP551SN50T1G

Loading...

Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

N

Single

Positive

5

0.15

1.7

12

0.04

0.004

-

-

Yes

No

-

$0.2077

More Details

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