Linear Regulators (LDO) | NCP731

LDO Regulator, 150 mA, 38 V, 8 µVrms Low Noise, with Enable and external Soft Start.

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The NCP731 device is based on unique combination of features – very low noise, low quiescent current, fast transient response and high input and output voltage ranges. The NCP731 LDO regulator designed for up to 38 V input voltage and 150 mA output current. Very low noise (8 µVRMS) makes this device an ideal solution for applications where clean voltage rails are critical for system performance (power operational amplifiers, analog-to-digital / digital to-analog converters and other precision analog circuitry). The device (version B) implements power good circuit (PG) which indicates that output voltage is in regulation. This signal could be used for power sequencing or as a microcontroller reset. Internal short circuit and over temperature protections saves the device against overload conditions.

  • Supply Rails for OpAmps, ADCs, DACs and other Precision Analog Circuitry and Audio
  • Post DC−DC Converter Regulation and Ripple Filtering
  • Test and Measurement
  • Industrial Instrumentation
  • Metering
  • HVAC and Industrial Sensors
  • Material Handling
  • Telecom

  • Test and Measurement
  • Industrial Instrumentation
  • RF Devices
  • Smart Metering
  • Supply Rails for OpAmps, ADCs, DACs and other Precision Analog Circuitry and Audio
  • Post DC−DC Converter Regulation and Ripple Filtering
  • Pressure and Level Sensors

  • Operating Input Voltage Range: 2.7 V to 38 V
  • Output Voltage Adjustable Range: 1.2 V to 35 V
  • Very Low Noise: 8 µVRMS (10 Hz to 100 kHz)
  • Low Quiescent Current: 48 µA typ.
  • Low Dropout: 230 mV typ. at 150 mA
  • Output Voltage Accuracy ±0.6%
  • Power Good Output with Programmable Delay (Version B)
  • Stable with Small 1 µF Ceramic Capacitors
  • Soft Start Input pin

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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

NCP731ADN330R2G

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Active

CAD Model

Pb

A

H

P

MSOP8 EP 3x3

846AT

1

260

REEL

3000

F

Single

Positive

3.3

0.15

2.7

38

0.29

0.048

70

14

Yes

No

Industrial

$0.7866

More Details

NCP731ADN500R2G

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Active

CAD Model

Pb

A

H

P

MSOP8 EP 3x3

846AT

1

260

REEL

3000

F

Single

Positive

5

0.15

2.7

38

0.29

0.048

70

21

Yes

No

Industrial

$0.7866

More Details

NCP731ADNADJR2G

Contact Sales

Active

CAD Model

Pb

A

H

P

MSOP8 EP 3x3

846AT

1

260

REEL

3000

F

Single

Positive

1.2-35

0.15

2.7

38

0.29

0.048

70

10

Yes

No

Industrial

$0.7866

More Details

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