NCP731 Linear Regulators (LDO)

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onsemi's NCP731 device is based on a unique feature combination of very low noise, low quiescent current, fast transient response, and high ‎input and output voltage ranges. The NCP731 LDO regulator is 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), indicating that output voltage is regulated. This signal could be used for ‎power sequencing or as a microcontroller reset. Internal short circuit and overtemperature protections save the device from overload ‎conditions‎.

  • 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%
  • PG output with programmable delay (version B)
  • Stable with small 1 µF ceramic capacitors
  • Soft start input pin
  • 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
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