Linear Regulators (LDO) | NCP3985

150 mA Low Noise, Low Dropout Linear Voltage Regulator

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Overview

The NCP3985 is 150 mA LDO Linear Voltage Regulator that provides the engineer with a very stable, accurate voltage with low noise and high Power Supply Rejection Ratio (PSRR) suitable for sensitive applications. In order to optimize performance for battery operated portable applications, the NCP3985 employs an advanced BiCMOS process to combine the benefits of low noise and superior dynamic performance of bipolar elements with very low ground current consumption at full loads offered by CMOS. The NCP3985 is stable with small, low value capacitors and is available in TSOP-5 package.

  • Cellular Telephones
  • Noise Sensitive Applications (Video, Audio)
  • Analog Power Supplies
  • PDAs / Palmtops / Organizers / GPS
  • Battery Supplied Devices

  • Output Voltage Options:
    1.8 V, 2.8 V, 3.0 V
    Contact Factory for Other Voltage Options
  • Output Current Limit 200 mA
  • Low Noise (typ 20 µVrms)
  • High PSRR (typ 70 dB)
  • Stable with Ceramic Output Capacitors as low as 1 µF
  • Low Sleep Mode Current (max 1 µA)
  • Active Discharge Circuit
  • Current Limit Protection
  • Thermal Shutdown Protection
  • Direct Replacement for LP3985
  • These are Pb-Free Devices

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Output

Polarity

VO (V)

IO Typ (A)

VI Min (V)

VI Max (V)

VDO Typ (V)

Iq Typ (mA)

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Noise (µVrms)

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Reference Price

NCP3985SN18T1G

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CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Single

Positive

1.8

0.15

2.5

5.5

0.7

0.07

70

20

Yes

No

-

Price N/A

More Details

NCP3985SN25T1G

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Obsolete

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CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Single

Positive

2.5

0.15

2.5

5.5

0.105

0.07

70

20

Yes

No

-

Price N/A

More Details

NCP3985SN275T1G

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Obsolete

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CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Single

Positive

2.75

0.15

2.5

5.5

0.105

0.07

70

20

Yes

No

-

Price N/A

More Details

NCP3985SN28T1G

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Obsolete

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CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Single

Positive

2.8

0.15

2.5

5.5

0.105

0.07

70

20

Yes

No

-

Price N/A

More Details

NCP3985SN30T1G

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Obsolete

Similar Products
CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Single

Positive

3

0.15

2.5

5.5

0.1

0.07

70

20

Yes

No

-

Price N/A

More Details

NCP3985SN33T1G

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Obsolete

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CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Single

Positive

3.3

0.15

2.5

5.5

0.1

0.07

70

20

Yes

No

-

Price N/A

More Details

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