onsemi NCP731 Low Noise CMOS LDO Regulators

onsemi NCP731 Low Noise CMOS LDO Regulators are designed for up to 38V input and 150mA output current. The NCP731 regulators offer low noise, a low quiescent current, a fast transient response, and high input/output voltage ranges. Internal short circuit and over-temperature protections save the devices from overload conditions. The low noise (8µV_RMS) makes the onsemi NCP731 LDO regulators an ideal solution for applications where clean voltage rails are critical for system performance. These applications include power operational amplifiers (OpAmps), analog-to-digital (ADCs) / digital-to-analog converters (DACs), and other precision analog circuitry.

Features

2.7V to 38V operating input voltage range
1.2V to 35V output voltage adjustable range
3.3V and 5.0V fixed output voltage versions
Very low 8µV_RMS from 10Hz to 100kHz
Low 48µA (typical) quiescent current
Low 100nA (typical) shutdown current
Low 290mV (typical) dropout at150mA

±0.6% output voltage accuracy (+25°C)
Programmable soft start circuit
Stable with small 1µF ceramic capacitors
Over-current and thermal shutdown protections
Micro-8 EP (3mm x 3mm) package
Lead-free and RoHS compliant

Applications

Supply rails for OpAmps, ADCs, DACs, and other precision analog circuitry and audio
Post DC−DC converter regulation/ripple filtering
Test and measurement

Industrial Instrumentation
Metering
Battery powered devices

onsemi NCP731 Low Noise CMOS LDO Regulators

Features

Applications

Typical Application

Block Diagram

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